Rear Diffuser

Wilhelm Raceworks rear diffuser

Sheet metal rear diffuser and transmission under panel for your MR2!  Based on the prototype I described in my blog, with some improvements and additions. Laser cut and CNC bent from a combination of .100in and .050in aluminum sheet.

Rear diffuser installed


This diffuser will NOT fit any existing MR2 exhaust other than my center exit Borla for 2GR swaps.  For non-2GR applications, a custom center exit exhaust will be required.  I can sell you just the muffler section from my exhaust, and a custom mid-pipe would need to be made to complete the system.

Installation will require drilling two holes in the rear cross member and installing rivnuts in those holes.  A half dozen holes in the rear bumper beam will also be required.  The diffuser will ship disassembled, and unfinished.  Assembly and installation will require a pop-rivet tool, and a rivnut puller.

Installation Instructions

SKU Rear Diffuser
Out of stock

Please send me an email if interested, I will be doing another batch in the future if there is enough interest.

The prototype on my car.  The production version is slightly wider, extends slightly further forward, and has an extra vertical divider in the two side tunnels.

Rear diffuser prototype installed Rear diffuser prototype installed

Rear diffuser prototype installed