[r33_RGSport]

Originally Posted by Daniely30

anyone ordered and installed "project gama" downpipes? they are cheaper than evolution and they are listed on bm3.
https://www.bm3tuning.com/bmw-f9x/s58-catless-downpipes

I have been selling Evolution Racewerks downpipe.
Somehow it has been the popular choice.

Originally Posted by gotstocks

I am curious as well. Do all catless downpipes require a tune?

Yes, it will require flash tune to optimize it.