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JJ2010 · 07-09-2009, 09:41 PM

Will the headers and catback make the car run richer or leaner.....

I was told by a local tuner that it would run richer not leaner.....

07-09-2009, 09:41 PM	#7
JJ2010 Drives: 2010 Camaro SS Join Date: Oct 2008 Location: Smithfield,NC Posts: 1,203	Will the headers and catback make the car run richer or leaner..... I was told by a local tuner that it would run richer not leaner.....