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Thread: De-cat and pipercross viper

  1. #1
    Regular Member PANDY 3.2 V6's Avatar
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    Default De-cat and pipercross viper

    I have already removed the middle silencer and back boxes from my 3.2. I'm picking the car up from the garage tomorrow as abaove i'm having the main cat removed and changing my heat soaking cone for the pipercross viper with the cold air feed.

    So basically it'll be straight through pipe after the manifold. I havent even attempted messing with the manifold/precats lambda sensor etc!

    But hopefully getting colder air in, and having the de cat, should make it at least louder lol. I'm not expecting too much in terms of performance improvement, especially without a re map. But its two things i've wanted to do for a long time.

    If anyone has a similar set up your feedback/opinions would be appreciated. I will post up pics and maybe a vid or two when i get it back tomorrow.

    Cheeeeers, pand

  2. #2
    Regular Member Big Red's Avatar
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    Louder!! It bursts your ear drums in the first place! Lol

  3. #3
    Regular Member PANDY 3.2 V6's Avatar
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    Ha ha cheers stu! I'll look forward to bursting them wednesday night!

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    Regular Member PANDY 3.2 V6's Avatar
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    Grrrrrrrrrrrr garage just cancelled on me said they wouldnt do it!

    Looked on ebay for ready-fabricated one and they 140 quid. Got a few other garages i use. May try the one that did my clutch/flywheel replacement he was good. And cheap lol

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    Regular Member PANDY 3.2 V6's Avatar
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    Grrrrrrrrrrrr garage just cancelled on me said they wouldnt do it!

    Looked on ebay for ready-fabricated one and they 140 quid. Got a few other garages i use. May try the one that did my clutch/flywheel replacement he was good. And cheap lol

  6. #6
    Regular Member Big Red's Avatar
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    booooo!!

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    Regular Member 6009tristanb's Avatar
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    Quote Originally Posted by PANDY 3.2 V6 View Post
    I have already removed the middle silencer and back boxes from my 3.2. I'm picking the car up from the garage tomorrow as abaove i'm having the main cat removed and changing my heat soaking cone for the pipercross viper with the cold air feed.

    So basically it'll be straight through pipe after the manifold. I havent even attempted messing with the manifold/precats lambda sensor etc!

    But hopefully getting colder air in, and having the de cat, should make it at least louder lol. I'm not expecting too much in terms of performance improvement, especially without a re map. But its two things i've wanted to do for a long time.

    If anyone has a similar set up your feedback/opinions would be appreciated. I will post up pics and maybe a vid or two when i get it back tomorrow.

    Cheeeeers, pand

    what are your back boxes you have on the car been wanting to do this since i found out that my brother in laws vectra has just 2 back boxes on his in his 2.0t with no middle box just a stright through pipe and his sounds great

  8. #8
    Regular Member PANDY 3.2 V6's Avatar
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    No back boxes lol. Just pipe, then tailpipes. Had the middle silencer and both back boxes removed and replaced with just pipe. Its quite loud. Loves it though, especially in tunnels!

  9. #9
    Regular Member PANDY 3.2 V6's Avatar
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    Still i'm getting my car back tonight so gonna have a play with it and get the pipercross fitted. Although waiting on the cold air feed from the bay to arrive hopefully tomorrow. I might try and get it booked in for de cat tonight coz one of the garages i use is pretty much 24 hours lol.

  10. #10
    Regular Member accveccysriturbo's Avatar
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    I have a straight through system with no centre box. Both back boxes are free flow also. Drones a little on the motorway but sounds nice lol

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