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ACS Composite

Rear Diffuser Fins (2x2)

Rear Diffuser Fins (2x2)

SKU:[45-4-097]CFZ

Regular price $479.00 USD
Regular price $479.00 USD Sale price $479.00 USD
Sale Sold out Coming soon

ACS C7 Corvette Rear Diffuser Fins: Performance & Style

Introducing the ACS Composite Rear Diffuser Fins for the Chevrolet C7 Corvette Stingray, Grand Sport, Z06, and ZR1. Transform your Corvette's rear valance with these performance-oriented fins, designed to perfectly fit your rear diffuser.

Key Benefits:

  • Stimulates airflow with double-sided fin system
  • Reduces turbulent air at the rear end
  • Improves undercarriage airflow and aerodynamics
  • Painted in Carbon Flash Black for a seamless look
  • Designed using OEM data for perfect fit and finish

Upgrade your C7 Corvette with these sleek rear diffuser fins, expertly crafted to improve airflow and enhance the appearance of your vehicle's rear. The package includes four fins, a template for precise placement, instructions, and hardware for easy installation.

Material

PC Composite

A polymer formulation developed by ACS Composite to withstand minor impacts, scrapes and heat distortion. 3x stronger than ABS.

Install video

Sorry, no install video is available. Check back later.

Surface finish

The Rear Diffuser Fins (2x2) comes in the following surface finish:

Carbon Flash Metallic Black

A paint swatch of Carbon Flash Metallic Black
RPO: CFZ | Paint code: WA501Q

Vehicle fitment

  • C7 ZR1
  • C7 Z06
  • C7 Grand Sport
  • C7 Stingray
  1. Coupe
  2. Convertible/HTC

Shipping & Returns

Free shipping & 30-day returns if you are not fully satisfied. See Return Policy for full details.

Rear Diffuser Fins (2x2) care instructions View full details
  • Free Shipping

    This product qualifies for free shipping to the following countries:

    • Canada
    • United States (Excludes Hawaii & Puerto Rico).
  • Made in North America

    Buy with confidence knowing each part was designed, made, and painted within North America.

  • Tools Required

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Customer reviews

Based on 92 reviews Average rating: 4.68 / 5 stars

Quick Delivery for C7 Corvette.

1978 - Joseph Berends

| |

Pennsylvania, United States

Fast delivery

Thank you for taking the time to review our C7 Stingray Corvette Z06 Rear Diffuser Fins. We appreciate your feedback and are thrilled to hear that you received your order quickly. Please let us know if there's anything else we can do to assist you further.

- ACS Composite

Great Selection and Repeat Purchases.

Adam Bielski

| |

Massachusetts, United States

awesome products have ordered from you guys multiple times

Thank you for taking the time to share your positive experience with us! We're thrilled to hear that you have ordered from us multiple times and that you are happy with the products. We pride ourselves on providing products that meet the highest standards of quality and we appreciate your continued trust in ACS Composite.

- ACS Composite

Smooth Purchase of C7 Stingray Corvette Z06 Rear Diffuser Fins.

Akida Maxwell

| |

Virginia, United States

It was a great experience.

Thank you for sharing your positive feedback with us! We're glad to hear that you had a great experience with our C7 Stingray Corvette Z06 Rear Diffuser Fins product. If you have any other questions or concerns, please don't hesitate to reach out to us.

- ACS Composite

Fast Delivery, Solid Corvette Parts

Alex Richardson

| |

Louisiana, United States

Super fast delivery and solid products! Will definitely be purchasing additional products again and highly recommended.

Thrilled to hear about your great experience with our fast delivery and quality products! Thanks for your support and your high recommendation!

- ACS Composite

"Awesome C7 Stingray Accessories!"

Andriy Lasiychuk

| |

Pennsylvania, United States

Great products.

Thank you for taking the time to leave a review! We're thrilled to hear that you're satisfied with our C7 Stingray Corvette Z06 Rear Diffuser Fins. It's always our mission to provide great products to our customers. If you have any future questions or concerns, don't hesitate to reach out to us!

- ACS Composite

5.0 Star Review

Anthony Murphy Jr

| |

Michigan, United States

good

Thank you for leaving a 5.0 star review for the c7 stingray corvette z06 rear diffuser fins product. We appreciate your feedback.

- ACS Composite

"Great c7 Stingray Diffuser Fins".

Bob Martin

| |

New Mexico, United States

Good service and product.

Thanks for leaving a review! We're delighted to hear that you had a positive experience with both our service and the C7 Stingray Corvette Z06 Rear Diffuser Fins. Please don't hesitate to contact us if you need any assistance in the future. We appreciate your business!

- ACS Composite

"Great Products, Pricey But Worth It"

bruce bouchard

| |

Rhode Island, United States

Always a good experience when choosing or ordering. Delivery and packaging alway great as well. A little pricey but great products. A free T-shirt with every $500 order would be awesome. I would have a shirt for quite a few days

Thank you for taking the time to share your experiences with us! We're thrilled to hear that you're satisfied with the quality of our c7 stingray corvette z06 rear diffuser fins and that the ordering process was smooth. We're always looking for ways to improve our customer experience, and we'll definitely consider the suggestion for a T-shirt promotion. Thanks again for your support!

- ACS Composite

"Top-Notch Experience with ACS Composite"

Bruce Reichelderfer

| |

Florida, United States

good service, excellent products, easy to navigate and use the website

Thank you for taking the time to leave your review! Our mission is to provide our customers with the highest quality products and the best service possible, so we greatly appreciate your feedback. We're thrilled to hear that you found our website easy to navigate and that you're enjoying your c7 stingray corvette z06 rear diffuser fins. We hope to continue serving you in the future!

- ACS Composite

Great ACS Diffuser Fins Experience.

Carl Clicquot

| |

Arizona, United States

Good overall experience.

Thank you for taking the time to review our C7 Stingray Corvette Z06 Rear Diffuser Fins! We're thrilled to hear that you had a good overall experience with our product. Please don't hesitate to reach out if you have any further questions or concerns.

- ACS Composite

Satisfied with ACS Composite.

Chace Butcher

| |

Texas, United States

Everything was good

Thank you so much for your feedback! We're glad to hear that you were satisfied with your purchase. If there's anything else we can do to help you out in the future, just let us know!

- ACS Composite

"Stellar C7 Stingray Diffuser Fins"

Colleen e Gallacher

| |

Florida, United States

great all around

Thank you for leaving a 5 star review for the c7 stingray corvette z06 rear diffuser fins product. We appreciate your feedback.

- ACS Composite

Great Quality Products!

Cindy McDaniel

| |

California, United States

Quality products

Thank you for leaving a 5.0 star review for the c7 stingray corvette z06 rear diffuser fins product. We appreciate your feedback.

- ACS Composite

Superior Corvette Diffuser Fins.

Dan Taliaferro

| |

Alabama, United States

Price, quality and delivery time was superior in every way to GM direct. I loved how everything was packaged, it was protected well. I would highly recommend acscomposite to everyone that owns a Vette.

Thank you so much for taking the time to leave us such a fantastic review! We're thrilled to hear that you found our C7 Stingray Corvette Z06 Rear Diffuser Fins product to be of superior quality and delivered promptly. It's great to know that our packaging provided the protection your shipment needed as well. We're proud to hear that you'd recommend us to other Vette owners, and we'll be grateful for your support.

- ACS Composite

Great product and service.

DARRELL HAYLEY Hayley

| |

Alberta, Canada

Thanks for everything. Product is great like always.

Thank you for your review! We're thrilled to hear that our rear diffuser fins for your C7 Stingray Corvette Z06 met your expectations. We always strive to provide top-notch products, and we're glad you're satisfied with your purchase. Please don't hesitate to reach out to us if you need anything else in the future!

- ACS Composite

4.5 Star Review

David Bec

| |

Alberta, Canada

good

Thank you for leaving a 4.5 star review for the c7 stingray corvette z06 rear diffuser fins product. We appreciate your feedback.

- ACS Composite

"Easy installation, Quality Product"

David Gilliam

| |

Maryland, United States

Good quality part fairly easy to install

Thank you for taking the time to share your feedback! We are thrilled to hear that you are satisfied with the quality of our C7 Stingray Corvette Z06 Rear Diffuser Fins product. Our team works hard to ensure that our products are of top-notch quality and easy to install. We appreciate your trust in our brand and hope to serve you again in the future.

- ACS Composite

Excellent C7 Corvette Upgrade!

David C. Harding

| |

Delaware, United States

GREAT!

Thank you so much for your review! We're thrilled to hear that you're thoroughly satisfied with our C7 Stingray Corvette Z06 Rear Diffuser Fins. If you have any other questions or concerns, don't hesitate to let us know!

- ACS Composite

Sleek C7 Corvette Rear Fins.

David Reis

| |

Florida, United States

Already installed and looking great!

Thank you for the awesome feedback! We're thrilled to hear that you're happy with your ACS Composite C7 Stingray Corvette Z06 Rear Diffuser Fins. Enjoy your sleek new look and don't hesitate to reach out if you need any further assistance or have any questions!

- ACS Composite

Awesome Rear Diffuser Fins.

Dennis Mezzo

| |

California, United States

Great.

Thank you so much for taking the time to share your feedback with us! We're thrilled to hear that you've had a positive experience with our C7 Stingray Corvette Z06 Rear Diffuser Fins. If there is anything else we can help you with, please don't hesitate to reach out.

- ACS Composite

5.0 Star Review

denny velez

| |

Texas, United States

good

Thank you for leaving a 5.0 star review for the c7 stingray corvette z06 rear diffuser fins product. We appreciate your feedback.

- ACS Composite

Great Quality Items From ACS.

Derrick Martocci

| |

Pennsylvania, United States

All the products I have received from ACS are top quality in my opinion. I ordered from other suppliers because they were cheaper , but the fit and finish was garbage. Lesson learned. I will order any future products from ASC.

Thank you for your feedback! We're thrilled to hear that you're happy with the quality of our products. We pride ourselves on offering only the best for our customers, and we're glad to see that it shows in the fit and finish of our parts. Rest assured that we'll continue to strive for excellence in all that we do. Thanks again for choosing ACS - we look forward to serving you in the future!

- ACS Composite

"High-Quality ACS Products with Easy Install"

dimitri Matsoukas

| |

null, Luxembourg

I can only recommend the products of acs. High quality and easy to install. The only negative point is the high delivery fee from fedex 1000$ for an initial 3500$ order

Thank you for your kind review of our C7 Stingray Corvette Z06 Rear Diffuser Fins. We're thrilled to hear that you were impressed with the quality of our products and found them easy to install. We apologize for the high FedEx delivery fee, it may be based on factors beyond our control such as courier, distance, customs and/or taxes. Nonetheless, we hope you'll continue to choose ACS Composite for all your future automotive needs!

- ACS Composite

"Top-Notch Corvette Mods"

Dominick Silla

| |

New Jersey, United States

Website is easy to navigate and manage. Parts are top notch - best in the business for Corvette modifications.

Thank you for taking the time to write a positive review of our product! We're thrilled to know that you had a great experience navigating our website. We pride ourselves on offering the highest quality parts in the Corvette modification industry, so thank you for recognizing our top-notch product. We hope you enjoy your new ACS Composite C7 Stingray Corvette Z06 Rear Diffuser Fins for many years to come!

- ACS Composite

Great Quality Corvette Fins.

Don Roberts

| |

Ohio, United States

Very pleased with my the quality of the parts.

Thanks so much for the fabulous review! It's great to hear that you were pleased with the quality of your new rear diffuser fins for your C7 Stingray Corvette Z06. At ACS Composite, we are dedicated to providing top-quality products and exceptional customer service. We're delighted to know you found both to be true!

- ACS Composite

Excellent Service and Fast Delivery.

Donald Beckham

| |

Florida, United States

Great products and quick delivery!

Thank you so much for leaving a review! We're thrilled to hear that you're happy with your ACS Composite rear diffuser fins and that our speedy delivery met your expectations. Happy driving!

- ACS Composite

"Great C7 Stingray Fins"

Dustin Hoverson

| |

Wisconsin, United States

Excellent so far

Thank you for the review! We're glad to hear that you're happy with your ACS Composite C7 Stingray Corvette Z06 Rear Diffuser Fins. Don't hesitate to get in touch if there's anything else we can do for you in the future.

- ACS Composite

"Great Products, Service, & Shipping"

Niklas Fu

| |

California, United States

I learned about ACS products from youtubers who have their beautiful corvettes upgraded, and I felt some products are actually useful as well as good in appearance. The service is good that pre-communication being very responsive and quick, even in Covid-19, shipping was super fast, installation with videos can be found on Youtube being easy, products being well protected and in great condition even further shipped across the ocean. And definitely looks beautiful after installed. Hope to see more interesting items and also for C8 in the future.

Thank you for taking the time to share your experience with ACS Composite and our C7 Stingray Corvette Z06 Rear Diffuser Fins. We are thrilled to hear that you found our products to be not only visually appealing but also helpful and convenient to install. Furthermore, our team is delighted to hear that you were satisfied with our service regarding your pre-communication and shipping, especially considering the current pandemic situation. We take great pride in ensuring that our products are delivered promptly and in top-notch condition. We appreciate your kind words and feedback and will use this as encouragement to continue providing our customers with high-quality products and exceptional service. Thank you for choosing ACS Composite, and we look forward to serving you again in the future!

- ACS Composite

"Great Product & Customer Service"

Eric Bonten

| |

null, Netherlands

Good quality materials and swift advice from customer service regarding the international shipping

Thank you for sharing your experience with us! We're happy to hear that you're satisfied with the quality of our C7 Stingray Corvette Z06 rear diffuser fins product. Our team is dedicated to ensuring that every product we offer is made with top-quality materials. We're also glad that our customer service team was able to provide you with useful advice about international shipping. We appreciate your business and hope to serve you again in the future.

- ACS Composite

"Best Quality and Service"

Eric Kugler

| |

New Jersey, United States

I have bought many products from ACS they qualty is best, the finish is factory and how they ship there products out done to prevent damage .They made my car better, They are simple the best.

Thank you for choosing ACS Composite! We're thrilled to hear that our C7 Stingray Corvette Z06 Rear Diffuser Fins made your car better. We take immense pride in our commitment to quality, so hearing that our finish is up to factory standards means a lot to us. We also appreciate your feedback on our shipping process. We strive to ensure that our products arrive at their destination in great condition. Your satisfaction is our top priority, and we're honored to be considered the best in the business.

- ACS Composite

Speedy delivery for Z06 diffuser fins.

Ernesto Amador

| |

Texas, United States

Really fast shipping!

Thank you for leaving a 4.6 star review for the c7 stingray corvette z06 rear diffuser fins product. We appreciate your feedback.

- ACS Composite

Excellent Product and Service.

Francois Caron

| |

Quebec, Canada

Great product and very good servie

Thank you so much for taking the time to leave us a review! We're thrilled to hear that you are happy with your C7 Stingray Corvette Z06 rear diffuser fins. We're also glad that our service met your expectations. Please let us know if you need any further assistance.

- ACS Composite

Well-packaged Quality Product Delivery

Fredie Harris

| |

Pennsylvania, United States

The product came undamaged, as ordered, packaged well and constantly updated on shipping. I'm SATISFIED!

Thank you for taking the time to leave a review of our C7 Stingray Corvette Z06 Rear Diffuser Fins. We're thrilled to hear that your product arrived in great condition and packaged well. Our team is committed to providing our customers with quality products and top-notch service, and we're glad that we could meet your expectations. We hope you continue to enjoy your purchase and thank you for choosing ACS Composite!

- ACS Composite

Outstanding Functionality and Visually Flawless.

Gary L. Patrick

| |

Iowa, United States

Once again, ACS Composite has provided me with mods for my 2016, Z51 C7 Corvette Stingray coupe that are functionally and visually outstanding! The rear dual diffuser fins, rear fascia extensions, and jacking pucks all arrived fast and the installation of these high quality items was a perfect fit and finish. Highly satisfied and highly recommended

Thank you for taking the time to share your experience with us. We're thrilled to hear that you're enjoying your ACS Composite mods for your 2016 Z51 C7 Corvette Stingray coupe, specifically the Rear Dual Diffuser Fins, Rear Fascia Extensions, and Jacking Pucks. At ACS, we're committed to delivering top-quality products that aren't just functional, but visually stunning. We appreciate your recommendation and look forward to serving you again in the future.

- ACS Composite

High Quality Products Worth It.

Gary Pronschinske

| |

Minnesota, United States

Great products. The quality of the products are great. You pay a little more but well worth it.

Thank you for the fantastic review! At ACS Composite, we strive to produce the highest quality products possible, and we're delighted to hear that our Rear Diffuser Fins met your expectations. We appreciate your feedback and support of our brand.

- ACS Composite

Excellent C7 Stingray Corvette Z06 Rear Diffuser Fins.

Gregory Jones

| |

Virginia, United States

Great products!

Thank you for taking the time to leave a review! We're thrilled to hear that you're happy with the C7 Stingray Corvette Z06 Rear Diffuser Fins. Our team works hard to ensure that every product we offer meets the highest standards of quality. Don't hesitate to reach out if you need any assistance in the future!

- ACS Composite

"Perfect Match for Z06 Stingray"

hugh stroube

| |

Arizona, United States

Excellent product. The way the z06 should have come. Diffusers match perfectly

We're thrilled you're loving the C7 Stingray Corvette Z06 rear diffuser fins! Thanks for highlighting the perfect match for your vehicle.

- ACS Composite

Top-Notch Product for Corvette.

Jonathan Cuthbert

| |

New Jersey, United States

Absolutely A1! The best parts I have ever put on my Corvette. I don't put cheap overseas mods on my $90k vette.

Thank you for your review! We're thrilled to hear that you're satisfied with our C7 Stingray Corvette Z06 rear diffuser fins. We understand that your Corvette is a significant investment, and we're glad you trust us to deliver top-quality parts for it. We appreciate your business and look forward to helping you with any future upgrades you might need.

- ACS Composite

"Outstanding Quality, Patience Required"

James Cummings

| |

Utah, United States

I have a 2019 Corvette Grand Sport that received considerable damage to the stock passenger side rocker. This was really bad news, but the ACS Composite Z06 side rocker kit fixed the problem with the result of an improved appearance vs. the stock parts. I also installed the ACS rear diffuser fins while I had the Corvette elevated on jack stands. Bottom line: both parts kits (side rockers and diffuser fins) are of outstanding quality and they look great on the Corvette. However, be patient and deliberate with your installation actions. Some screw mounting holes (stamped outline on the side rockers) required drilling for mounting on the Grand Sport. The drilled holes do not line up perfectly with the stock threaded inserts; it is necessary to elongate the holes for a proper fit. Be careful when elongating the holes with a drill bit because a shallow insertion could allow the drill bit to slip out and damage the finished surface of the side rockers. The diffuser fins also require careful work because of the limited clearance available to insert the screws and to thread screws into the fins. This challenge can be mitigated considerably by removing the three diffuser panel screws on each outboard side of the diffuser panel. Screw removal will allow you to pull the diffuser panel down for better access to thread the mounting screws into the fins. I have an exceptionally well equipped shop and decades of serious automotive work experience. These projects (side rockers and diffuser fins) required extensive application of the subtle tricks that I have learned over the years. Patience and careful, deliberate procedures will eventually give you the results that you want. Expect these projects to require much more time than you anticipate, but the results will be worth it.

Thank you for taking the time to leave feedback on our ACS Composite Z06 side rocker kit and rear diffuser fins. We're thrilled to hear that our products have improved the appearance of your 2019 Corvette Grand Sport and that you found our parts to be of outstanding quality. We appreciate your patience and understanding with the installation process, as some screw mounting holes may require drilling and careful work is needed for the installation of the diffuser fins. We value your expertise and feedback and we hope that you'll enjoy your new upgrades for many years to come. Feel free to reach out if you have any questions or feedback in the future. Thanks for choosing ACS Composite for your Corvette needs!

- ACS Composite

Great Product, Currency Issue.

James George

| |

Ontario, Canada

ACS makes very high end add ons for my C7 Stingray.Would purchase more except paying in U.S funds is holding me and other Canadians back.Always have to wait for the sales that are few and far between.

Thank you for the amazing review! We're thrilled that you appreciate the high-quality of ACS Composite's products. We understand that the exchange rate can be frustrating for our Canadian customers, and we do our best to offer sales and promotions whenever we can. Thank you for your patience and loyalty!

- ACS Composite

"Easy install, great addition."

James McLeod

| |

Quebec, Canada

Great product, easy to install, looks great.

Thank you for taking the time to leave us a review! We appreciate your feedback and are thrilled to hear that you are happy with the ACS Composite C7 Stingray Corvette Z06 Rear Diffuser Fins. Our team works hard to ensure our products are easy to install and enhance the overall look of your car. Thanks again for choosing ACS Composite!

- ACS Composite

Great Purchase Experience.

James Strickland

| |

New York, United States

Very happy, would purchase again.

We're thrilled that you're happy with your ACS Composite C7 Stingray/ Z06 Rear Diffuser Fins! It's fantastic to hear that you'd be happy to purchase from us again and we look forward to serving you in the future. Thanks for choosing ACS Composite!

- ACS Composite

Excellent C7 Corvette Diffuser Fins.

Jay Carrillo

| |

Texas, United States

Great products!

Thank you for leaving a review of our C7 Stingray Corvette Z06 Rear Diffuser Fins! We appreciate your kind words and are glad to hear that you are happy with your purchase. If you have any questions or need further assistance, please don't hesitate to reach out to us.

- ACS Composite

"High Quality Corvette Upgrades with Excellent Fit"

Jim Hubert

| |

Ontario, Canada

Product is of excellent quality and design. The fit and finish is OEM or better. I purchased the front splitter, side rockers and rear diffusers for my C7. Along with the shelf behind the touchscreen and the rear license plate bracket. The product came in carbon flash metallic which perfectly matches the factory carbon flash metallic already on my Corvette. Product was packaged well to avoid damage . Product came in a timely manner. Installation instructions were good as were the online videos from the website Website was good to shop from, however it had trouble when I tried to set up my account, so I just ordered the product. This worked just fine. You get what you pay for. I've seen the cheap, ill fitting, poor finish, plastic junk on other vehicles that have come into my shop. I would definitely recommend your products to others. I plan to purchase more. I am a licensed auto technician and own my own shop. I expect quality. You delivered!

Wow, thank you for the detailed review! We're delighted to hear of your satisfaction with our products, it means a lot coming from a seasoned auto technician. We're sorry to hear about the trouble with setting up an account on our site, but we're glad you'll still be returning for more of our product. Thanks again!

- ACS Composite

5.0 Star Review

Jim Martinson

| |

Wyoming, United States

good

Thank you for leaving a 5.0 star review for the c7 stingray corvette z06 rear diffuser fins product. We appreciate your feedback.

- ACS Composite

Mixed Feelings on Rear Diffuser Fins.

Jimmy Ebersole

| |

Ohio, United States

A little pricey. The fit wasn't as good as I expected..just my opinion

Thank you for taking the time to review our C7 Stingray Corvette Z06 Rear Diffuser Fins. We're sorry to hear that the fit didn't meet your expectations. If you would like to discuss this further or need any assistance with the product, please don't hesitate to reach out to our customer support team. We strive to provide our customers with the highest quality products and service, and we appreciate your feedback. Thank you for choosing ACS Composite.

- ACS Composite

Outstanding Quality and Service.

John Blake

| |

Georgia, United States

The staff and the items ordered were awesome! From my initial order to my last, the quality was second to none!

Wow! Thank you so much for taking the time to leave an outstanding review! We're thrilled to hear that you had a great experience from start to finish and that the quality of our C7 Stingray Corvette Z06 Rear Diffuser Fins exceeded your expectations. It's customers like you that make our job so rewarding. We appreciate your support and look forward to helping you again soon!

- ACS Composite

Outstanding C7 Rear Diffuser Fins

John Bovard

| |

British Columbia, Canada

Parts are first rate.

Thank you for taking the time to review ACS Composite's C7 Stingray Corvette Z06 Rear Diffuser Fins! We're glad to hear that you found the parts to be first-rate in terms of quality. If you have any concerns or questions in the future, don't hesitate to let us know.

- ACS Composite

5.0 Star Review

Brian Johnson

| |

California, United States

good

Thank you for leaving a 5.0 star review for the c7 stingray corvette z06 rear diffuser fins product. We appreciate your feedback.

- ACS Composite

High-Quality ACS Products.

juan diaz

| |

Texas, United States

Amazing and quality products

Thank you for your wonderful review! We're glad to hear that you find our C7 Stingray Corvette Z06 Rear Diffuser Fins amazing and of high quality. Our team works hard to bring only the best quality products to our customers. If you have any questions or concerns in the future, don't hesitate to reach out.

- ACS Composite