I plan on buying a complete triflow exhaust system from bavauto.com, as it is the cheapest and haven't heard anything bad about it. I went to e34.net or whatever, and i am convinced they are all retards. -3-0 hp gain on things that work on every other car in existence just seems stupid to me. And I put in my cone filter, and i regret their advice to put a K&N in the stock box. I want to know if any of you have exhausts on your e34's, and what kind of power gain you achieved.
1990 535i 5 Speed +[E.A.T. chip/Powerflow intake/Tri-flo exhaust system/Strut Tower Bar/Smoked Signals/Pioneer Head Unit/Crossfire vr401 amp/12" Crossfire BMF sub/eyebrows/18" alpina replica rims]+
6 cylinders, 5 Speeds, 4 Doors, 3 Pedals, 2 Exhaust Pipes, 1 Ultimate Drving Machine