Thread: Get real power out of your E38 exhaust
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  #13  
Old 06-11-2012, 08:22 AM
skinchin13 skinchin13 is offline
SittinRock
Location: Landrum, South Carolina
  
Join Date: Apr 2011
Posts: 61
Mein Auto: 1996 BMW 750il
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Hey for the 750il this is what i did. There was some hp gain which was proven by dynometer runs. I has an x-pipe going to flowmaster super 10s, and the pipe size is 2 1/4.
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