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Discussion Starter · #1 ·
hey guys i was wondering if you need to buy a auto. tuner if you threw on a aftermarket exhaust. I just ordered a barker full exhaust system and am seeing that people buy tuners to tune up there efi after the new exhaust is in, is this needed or not? Thankss
 

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My sources say yes.....lol anytime you add a mod you need to compensate the difference in airflow by stepping up the fuel/air mix
 
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