Quote:
Originally Posted by greekcs
I notice this car produces alot more soot than my outgoing E46 M3. Do these cars run rich by default?
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Dead opposite, super lean. Like 13.5:1 WOT and 14.7-15:1 under part throttle and idle. But yes I know what you mean BMW's do seem to have a lot of soot on the exhausts, it might be that we notice it more because the tips on a BMW are polished chrome.
Also the two pipes are muffled differently, so you couldnt do alternate flaps if you wanted.