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Engine sug. on cat back

Discussion in 'Powertrain' started by cmybootoo, Oct 6, 2004.

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    cmybootoo Guest

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    sug. on cat back

    so i have an 04 rolla. i want to get a cat back system do you guys recommend getting hi flow cats, removing the resonator or getting a new one and what size piping you use. thanks
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    System Error Guest

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    I'm getting 2.5" piping from the turbo back....high flow cat and no resonator.

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