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      11-08-2012, 04:05 PM   #11

BimmerRob08's Avatar
Drives: 2008 M3, Space Gray
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Originally Posted by M3PO View Post
Catless is going to get him ~5 hp more versus his HFC he has now. Not worth the smell, extra expense, and failing smog.

OP, it is very possible that this dyno has a calibration that is just somewhat low. You are worried about a difference of 30 WHP which equates to 8-9% of the reading. It's not easy to imagine that kind of difference from a dyno. It may be out of calibration or maybe the calibration is slightly off.

Basically, without a baseline, we can't tell you whether you are seeing the expected gains from your parts because the dyno is a bit of an "unknown".

yeah wish I would have gotten a stock baseline DYNO first. Anyway, maybe I'll get it run again at a different place and compare.