Originally Posted by Racemaster
The car is built in 1996 in Germany, running on 98 octane unleaded at sea level.
I'm wondering if the VANOS is stealing some horses, the guy doing the dyno indicated that changing to K&N airfilter could increase the HP....
get a clued up bmw machanic to advance and lock your vanos!! ive got a BMC replacemet filter and it does wonders!! picked up 5kw on the wheels with just the filter! did a before and after run.. if you can get your hands on a cold air induction which has a sealed pipe all the way to your bumper is the way to go! ill post some vids of my brothers 325i with cold air induction!!
the last part of your exhaust from the cats back.. get the pipes replaced with 63mm pipes and my back box is a aftermarket lumina box and i picked up another 8kw! get rid of the cats aswell if your laws alow it!
i changed my diff to a 3.91 today and now its raining
had it on the freeway and 120khm is running on 3000rpm which is fine by me!! ill go try it out later tonight if the rain clears up!!!