Quote:
Originally Posted by mlev
CG Precision DS-01 Catted Downpipe has never produced a check engine light on my F30, so there are more than 2 options out there. CG also has a larger diameter for more airflow than Fabspeed (and is quite a bit cheaper). Sold by Mike @ x-ph.com
I haven't tried to pass CA emissions with it yet, though.
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Yes this is another no CEL option, but AFAIK its still built to order, so lead time can be several weeks or longer.
Also, in order to take advantage of their 3.5'' outlet option, you need a 3.5'' exhaust, which very few people have. Otherwise, its the same diameter as all the other DPs.