Want to add a bit more zing to the read end of your M car? You can't go wrong with the PSM style carbon rear diffuser kit. This kit contains 4 pieces - a large undertray, main diffuser, and left and right rear bumper extentions to complete the look.
This is certainly the most aggressive rear diffuser you can find and they will instantly transform the look of your daily M cars to a track day weapon!
Compatible With F80 M3 saloon, F82 M4 coupe, and F83 M4 convertible.
