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Thread: 1.9cdti back pressure

  1. #1
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    Thumbs up 1.9cdti back pressure

    Hi guys I've got a powerflow exhaust on my vectra 1.9 with no cat or middle box and a small back box. The back box intact is so small u can see the pipe coming out the other side. Will I be losing power from this. If so should I put the standard back box back on. Cheers joe

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    Full Member Big Sig's Avatar
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    As it's a turbo it will love a free flowing exhaust. Back pressure is mote important on N/A engines.
    Now I need a turbo to keep up!

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