M3post.com member Shady 1 from Texas. I had to get a base Dyno run on my 2008 BMW E92 M3 with the VF650 Supercharger kit with Active Autowerke X-pipe Catless with Gintani Race Exhaust. Car only put down 495 WHP. There are no codes or boost leaks. Going to drive from Texas to New York to American Racing Headers HQ have long tube headers and their 3 inch X-pipe installed. Next take a trip to New Jersey to the shop Powerhaus-performance for a real custom tune with ARH set up. Car should put down some real power for a change stay tuned.
