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  1. E60 (03-10) Want to Buy Evolve Longtube Headers

    Parts / Other For Sale or Wanted
    Evolve Longtube Headers for sale Less then 3,000 miles on them. Located in Chicago, Il I can ship at owners expense, paypal transactions only. Local pickup also available. Asking price is $3,000 and your stock headers. Thank you.
  2. Best modifications for pure horsepower gains?

    E39 M5 and E52 Z8 Discussion
    Hello all, I am just getting into the forum game because I really want to know everything about my car. I did a few searches and couldn't find a thread on this exact topic. So the question is pretty simple. What modifications would you all recommend to solely boost the horsepower of the beast? I...
  3. Please analyze my Dyno Numbers - Moore Automotive Dyno Day Pics

    E39 M5 and E52 Z8 Discussion
    Thanks to Brian (Speed Freak Detailing) for setting up a Dyno Day at Moore Automotive in Fairfax, VA. Please help me diagnose my Dyno numbers. Is there something wrong with this Dyno? My torque numbers and curve seem very off from what I was expecting. The torque seems WAY too high...
  4. What Powerchip has been up to...

    E39 M5 and E52 Z8 Discussion
    Last week we had the pleasure of meeting 3 new (to us) members of the M5board community, it made me think why we haven't documented the new friends we've made and their opinions of the product more often. When you meet two M5 owners with the same name in the same week it's a lot easier to...