[saeedg48]

Originally Posted by erm324

quick question: does the pulley/going fully catless add this much power or are these dynos inflated a bit -->

http://www.m5board.com/vbulletin/e90...o-results.html

it all depends on what dyno you're getting your numbers off of. usually a 16% difference from the advertised stock hp/trq numbers is an accurate dyno that you can "trust". Example on our 414HP M3s ; 357HP would be what you should be getting on most dynos.. 357*1.16 = 414.12HP

just looks for before and after numbers on each run. hopefully they go up