Quote:
Originally Posted by gomer_110
I've had LTH's and CBE on my nismo for a few months now and NO soot or discoloration on the rear. The soot factor is more dependent on the engine tune (rich vs. lean).
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Agreed but doesn't the elimination of CATs (w/out tune) cause the car to run rich or lean? I mean I guess if I tune it the same time as getting rid of CATs I should be okay.