C8 Corvette - Zebulon Diffuser with mount kit
type: Product
description: AMT Motorsport is proud to have partnered with one of the best names in aerodynamics, Zebulon Motorsport Consulting, to offer the first motorsport-grade diffuser available for the C8 Corvette. Utilizing GM CAD files and 3D scans of our own car, this diffuser has been designed to take advantage of the exceptionally flat floor inherent to the C8 platform - allowing room for aftermarket sway bars, factory control arms, positioning with our F5 Wing mounts, and our bespoke quick release mounting system. Paired with our 78x14 F5 Wing and Zebulon front splitter, this part can vastly increase a race car's aerodynamic efficiency, adding downforce and reducing drag. Designed through an iterative design process utilizing Computational Fluid Dynamics and validated in a wind tunnel, the strake placement and shape of the diffuser have all been tuned specifically to maximize its overall performance. The footprint of the diffuser tunnel section is 37in x 37in and reach a height of 6.5 inches. On Track Performance We tested this diffuser at an open track day at NJMP Thunderbolt in March of 2026 and we were blown away by how effective it was. We ran two baseline sessions in the morning on fresh tires, and set out for a third session without the diffuser. After a few laps we rolled into the pits, slapped the diffuser on, and immediately went 1.2 seconds faster. Further tuning through the day allowed us to remove wing angle which increased top speed and allowed a little higher mid corner speed in the high speed stuff. Driver confidence and outright speed increased, and led to a total lap time reduction of 1.7 seconds on a 1:15 course, which is pretty crazy. Furthermore, we know it's making a whole bunch of downforce, since we cracked the thing right down the middle. We did not account for just how much suction this part would make, Our hard mounting points at the 4 corners of the diffuser were not enough, and the center section sucked down to the track and ground off the strakes, Here'…
brand: AMT Motorsport
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  low price: 4200.00
  high price: 4200.00
  price currency: USD
  offer count: 1
  offers: Offer
    price: 4200.00
    price currency: USD
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    item condition: https://schema.org/NewCondition
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