thank you. I am happy I did the before after dyno. I think these gains are far more than would be seen on the non-vanos. As you can see from the photos...the vanos exhaust manifolds are a horrible bottle neck. This is one of the big reasons the non-vanos crowd get higher gains with other mods.
Originally Posted by aspensilver540
Wow, I didn't know I had that...pretty cool
Nice gains btw, I like how you dyno'd before and after.
2001 540i - Orient Blue
M5 bumpers, wheels, mirrors
S/C, water/air IC
A1 Headers, Random Technology Cats, Eissenmann Exhaust
3.15 diff, evosport power pullies
Koni Sports, Eibach Springs/Sway Bars