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#1: 07-02-2012, 07:43 AM
Tune with a downpipe.....why?
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Can someone please offer a convincing technical explaination of why you would need a tune when installing an aftermarket downpipe. From what i have seen personally, the only difference is that reduced backpressure may result in difficulty with boost control, which can be fixed without a tune. I read for a while and ol / cl delay was mentioned. Please advise.
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