Product DetailsOur Rear Diffuser Extension Kits are made from 5/16" Solid Phenolic Sheet with a Satin Black Finish on both sides. These Kits are Designed to fit the GM ZL1 and Dual Mode Rear Diffusers and extend the bottom edge approx. 3"-4" to improve Aerodynamic Down-Force at the rear of the car. Automotive Wedge Fasteners and Stainless Hardware are used to attach the extension to the GM Diffuser. All specialty Hardware and Installation Instructions are included.
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This product Typically Ships in 2-3 weeks and is made to order
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