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Old 08-17-2009, 02:51 PM   #7
A.R. Headers
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Drives: Pontiac G8 GT
Join Date: May 2009
Location: new york
Posts: 266
Guys, This is always a popular question. The easiest fix, and consequently what produces the best results, is a tune. This eliminates any possibility of a CEL and at the same time boosts performance throughout the RPM range. Regardless of headers used, tuning is a must.

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