Quote:
Originally Posted by mobbinthesteez
Do all high flow cats not cause CEL or is it just the AA one?
|
the majority of the catted downpipes will trigger the check engine light.
Active Autowerke is the most proven and comes with a no CEL guarantee (it use GESI EPA approved cats)
Fabspeed use HJS cats which are excellent as well and wont trigger the check engine light
the CG has a good history with CEL but does not come with any guarantee and they do not disclose which cats they use