Flat Underbody Cover Kit - Porsche 987 Cayman

428.95 389.96 389.96000000000004 USD


Add to Cart


Finishing what Porsche started, we fill in the void in the 987's underbody. The middle of the vehicle creates drag on automobiles and covering the turbulent areas with flat sheet aluminum reduces this significantly. By feeding the rear diffuser less turbulent air, we are able to increase the diffuser's ability to create downforce as well.

Produced from sheet aluminum and powder-coated a durable black color, they look great and function as intended. Pair this with our rear diffuser to reduce lift and drag simultaneously.

Through CFD, we have estimated the underbody panels reduce the coefficient of drag (cD) by 0.007; or 7 points.


  • Flat Underbody Panel

  • Bracket, 987.1 (2)

  • Bracket, 987.2 (2)

  • Hardware Kit, Includes All Hardware for Install




Reduce Drag

Increase Gas Mileage

Flat Underbody

Simple Install




CNC Cut 5052 Aluminum

CNC Bent for Repeatability

Powdercoated Black for Durability

Produced in the USA

Stainless Steel Hardware Throughout

Rivet-Nut Install Tool Included




The Flat Underbody Covers are part of our Ventus 1 and Ventus 2 packages for the 987 Porsche Cayman. The Flat Underbody Panel covers a large gap between the belly pan and the rear diffuser. As a result; this panel kit will decrease underbody drag and improve the diffuser's ability to function.

The goal of the Ventus 1 and Ventus 2 package for the Porsche Cayman is to improve aerodynamic performance over the factory. The Ventus 1 package increases downforce with a minimal increase in drag and designed towards an end-user who wants a slight bump in downforce.  The Ventus 2 package increases downforce significantly, with an increase in drag as well; and is geared towards an end-user who wants the most from their car and tires on the track.




Install Manual

Informative Packet