What kind of scanner do you have and what codes are you getting? Just because someone has the software to uprev a car doesnt mean they know how to! The rear 02's are there for a reason and no shop should cut them off completely if they know what they are doing. If they do then they are just selling you short of what a good reputable shop can give you. Think about this, if an exhaust J bend can fool a computer then why are you paying someone to tune the same thing? I would hope they would know how to tune it more efficiently.
Last edited by Rooskey; 08-09-2011 at 11:22 PM.
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