BX GTi 8V exhaust
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  1. #1
    Tadpole Mench's Avatar
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    Default BX GTi 8V exhaust

    I need a new exhaust on my bx from just before the muffler onwards,


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    someone mentioned to me something about putting a hi-flow cat in it (not a Citroen person) - anyone know of anything that's available and if it stuffs up the ECU settings? I'm not exactly a full bottle on EFI and emission control stuff

  2. #2
    1000+ Posts Dave's Avatar
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    The cat is at the front end of the exhaust close to the engine just at the bottom of the downpipe. As your car is around 15 years old i am sure you cat is stuffed by now and therefore is probably quite restrictive. You will probably see a nice improvement if you install a high flow cat. Just one from a v6 or v8 commodore is big enough. This should not stuff up your efi and will actually improve your emmissions as no doubt your old cat is dud by now.

    So if you are just replacing the end of the system that is nothing to do with the cat.


    Dave


  3. #3
    Tadpole Mench's Avatar
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    Quote Originally Posted by Dave
    The cat is at the front end of the exhaust close to the engine just at the bottom of the downpipe. As your car is around 15 years old i am sure you cat is stuffed by now and therefore is probably quite restrictive. You will probably see a nice improvement if you install a high flow cat. Just one from a v6 or v8 commodore is big enough. This should not stuff up your efi and will actually improve your emmissions as no doubt your old cat is dud by now.

    So if you are just replacing the end of the system that is nothing to do with the cat.


    Dave
    yeah the car smells of bad cat smell. I should have said though - I knew the cat would be a fair bit further forward, but I thought while I was doing exhaust work I should do it all in one go.

    Stereo goes in thursday or friday - these cars were MADE to conceal a decent stereo! (It's ok I'm not doing anything silly with subwoofers or crap like that, just an MP3 head unit and some new speakers, 6x9s on the parcel shelf)

  4. #4
    1000+ Posts Dave's Avatar
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    Its all good mate, yeah i would suggest you do it all in one go, a good cat should only be a few hundred bucks extra.
    There is nothing wrong with a nice stereo, i have one 12" sub in my bx. I made a custom braced mdf parcel shelf and the sub sits in between two 6x9's with a 4 channel amp in the boot, a channel each for the 6x9's and 2 channels bridged to power the sub.

    Dave


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    Tadpole Mench's Avatar
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    Quote Originally Posted by Dave
    Its all good mate, yeah i would suggest you do it all in one go, a good cat should only be a few hundred bucks extra.
    There is nothing wrong with a nice stereo, i have one 12" sub in my bx. I made a custom braced mdf parcel shelf and the sub sits in between two 6x9's with a 4 channel amp in the boot, a channel each for the 6x9's and 2 channels bridged to power the sub.

    Dave
    heheh crazy. I don't need/want/can't afford that much power, and I also need the space for carrying around stuff - I'm in a band so I don't want to sacrifice the fact that my whole amp fits under the parcel shelf those boots are so huge!

  6. #6
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    so can I just get this done at an exhaust specialist? Fairly straightforward?

  7. #7
    1000+ Posts Dave's Avatar
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    Its all simple stuff that any decent exhaust shop does every day of the week.


    Dave


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