Do i have to retune when i replace the midpipe?
01-20-13, 01:06 AM
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Do i have to retune when i replace the midpipe?
Hi i recently bought a FD rx7 with a power fc that is alright tuned, it has a catless midpipe. I want to put back the stock catalytic converter to pass smog. Do i have to retune?
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t-von
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09-10-15 01:56 PM
