Quote:
Originally Posted by Phyrexia
Hi all. Trying to compile a list.
1) Akrapovic
2) AFE Power Mach Force-XP
3) Fabspeed Valvetronic
4) Frequency Intelligent
5) Remus
6) BMW M Performance
7) Armytrix
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There is a new one by a company named "Valvetronic".
https://valvetronic.com/products/bmw...30-f22-f36-f32
a second version with muffler box will be in the near future.