Perth-WRX.com - Cat back on my11 sti

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deano555

25-05-2013 12:25 PM

Cat back on my11 sti

On my wifes cs9 she had a turbo back exhaust and we had to flash the ecu, wil a cat back on a my11 sti require this also???

SmittyB

25-05-2013 01:03 PM

No you won't need a tune with only a cat back.

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