We just got all the mods done to the X5. Long story, but its faster than my M5 by a long shot now... I don't particularly care for the sound of the G-Power mufflers after all (way too quiet) but they are SO HUGE (large in diameter) that the horsepower gain is immediately noticed. I'm now looking for an extra 4.6 or 4.8 short block (the M5 motor doesn't work... believe me, I;ve tried) to rebuild for next summers project. It will be a stroker motor... just how big is yet to be decided because I don't think I've seen all the part possibilities yet!

Stay tuned!

ps... track results posted in a week or so!

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2008 BMW 335I Blue Convert - still in break-in!
2003 BMW Silver M5 W/ 4.11 gears, Cust Exhaust, Software.
2002 BMW Silver X5 4.6i W/ G-Power Custom headers and SS exhaust, Dinan Throtte Body, S3 Software, Super Charger, 4.11 KMS Posi gears, Custom intercooler, Turbo controller.
2000 Yamaha White Road Star Anniversary Full Dress #322
1999 BMW 528i
1990 Mercedes 300E
1989 BMW 325i
1978 Kawasaki 650 Street Racer