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      02-19-2010, 10:16 PM   #4
Drives: 09 Jerez/ Black, E90 M3
Join Date: Nov 2009
Location: Miami

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Originally Posted by PunjabiM3 View Post
So you are saying that you got 13 whp from just the muffler? Seems high...
No BS, I'll post the dyno sheet on Monday, If I didn't see it, I wouldn't have believed it myself. We did 5 before pulls( 3 accurate and 2 with spikes) and 5 after pulls(4 accurate and one spiked). The engine made more power on the 3rd run both times, it needs a little temp to get the best result.
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