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Downpipe/decat onto OEM catback..?

Boosted Jan 23, 2012

  1. Boosted

    Boosted New Member

    I'm on S1 software currently

    Looking to fit
    aftermarket downpipe and decat but the OEM catback section will

    Will this have much effect on S1 software? or would I need to go
    S2 map?

    Any clutch issues with these mods on the current map?

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