ACS Wide Body Conversion Kit for the Chevrolet Stingray C7 Coupe and Convertible 2014-2019

ACS Wide Body Conversion Kit for the Chevrolet Stingray C7 Coupe and Convertible 2014-2019

For release March 1, 2016. 

ACS Wide Body Conversion Kit for the Chevrolet Stingray C7 Coupe and Convertible 2014-19

ACS pride themselves in offering premium, quality engineered parts that are imbued with  care of duty, love and attention to detail that reflects their passion.  ACS is constantly working on new innovative solutions to provide the greatest options for Corvette enthusiasts everywhere. The latest creation is a family of panels to widen and enhance the already great C7 Stingray.  

Designed from the ground up utilizing computer-aided engineering , GM's OEM zero spec data and manufactured in RTM composites, the ACS specially designed parts consign the myth of aftermarket parts, panels are sold fully prepped and primed; all ready for trial fitting, delivering visual appeal and extra clearance for massive 12” wheels fitting P335/25ZR20’s.  

before and after stingray

The wide body conversion extends the rear quarter kit by almost 2 inches per side to add some oomph and swagger to any Stingray, for both coupe and convertible.  Not only will the car’s curves be enhanced the added benefit of allowing for larger wheels and tires, letting get the C7 power to the ground and improve acceleration times. Crucially, the OEM rockers do not need to be unglued from the car's aluminium rails - an expensive and dangerous procedure that would require the door removal and potentially, through heating, distort the aluminium chassis. Every detail has been addressed, from wheel liners, to fasteners to even new rear splash guards that comes with the kit adding functionality and details to the upgrade. 

A scooped version, like the Z06 is available with functional brake cooling ductwork, or a refreshing conservative smooth version for the stealthy cleaner appeal. Both version are bolted and quickly installed for a perfect fit and finish.  

Specs and details  

  • Adding 40 mm width on either side, allowing for room for 20x12 wheels with 335-25-20 tires 
  • Bolt-on kit includes driver and passenger sides 
  • Rocker Extension 
  • Main quarter panel 
  • Five1 Rear quarter upper scoops (Coupe only)
  • Rear fascia extension 
  • Rear splash guard 
  • Wheel Liners 
  • All hardware included 
  • Manufacture in RTM composite 

    Fitting is estimated at 4 hours. 

    Available for both Coupe or Convertible 

    ACS Coupe Rear Wide body conversion 

  • Smooth version, Smooth Rocker Extension panel, Pn 45-4-023 
  •  Stingray Widebody

    Widebody detail

    Widebody Scoop

  • ACS Convertible Rear Wide body conversion 
  • Widebody Convertible Stingray

    Product Links

  • New ACS Composite Widebody Options!

    GM Rear Widebody with Z06 Scoop and Rear Fascia

    While the above kits were bolt-on panels that did not require you to remove the rear fascia, these subsequent widebodies (available for coupes and convertibles) replace the entire rear section of the car for a truly OEM and feel of the Z06. 

    This widebody kit includes:

    1. Z06 driver and passenger rear quarter panels.
    2. ACS rocker extensions.
    3. Z06 Rear fascia
    4. Diffuser extensions bezels
    5. Gas cap fuel door
    6. Wheel liners
    7. Z06 rear spoiler with optional stage 2 and stage 3 setup
    8. Optional functionality for brake cooling
    9. All necessary hardware

    ACS Composite GM 'COUPE' Product Page

    ACS Composite GM 'CONVERTIBLE' Product Page

    Mr. Cooper's Z51 ACS Composite GM Rear Widebody
    Mr. Weasley's Arctic White ACS Composite Coupe Rear Widebody
    Mr. Smith's Arctic White Convertible ACS Composite GM Rear Widebody


    About ACS Composite 

    Advanced Composite Specialties (ACS Composite) is an OEM validated composite manufacturer that specializes in RTM (Resin Transfer Moulding). ACS assists its customers in product development, design, engineering, manufacturing, tooling and fabrication. We offer low to high volume composite manufacturing coupled with robotic trimming and bonding, as well as finishing and priming services. 

    Every ACS product, whether manufactured for the OEM's or for the aftermarket is engineered and validated to meet the stingiest performance and quality standards. With its in-house design, tooling and manufacturing capabilities ACS is the leader in the performance aero segment. 

    With nearly 100,000 composite components built for various OEM automotive customers, ACS excels in a market where high quality meets competitive costing; therefore, allowing ACS to apply this knowledge to new applications where composite properties are favourable for achieving light weight, aero efficient durable components. 

    More information on ACS can be found at 

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