Just installed Bosal Twin, slight leak at DP
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This is a discussion on Just installed Bosal Twin, slight leak at DP within the Engine Performance forums, part of the Tutorials & DIY category; Hi, I need some quick help from all of you that have changed your own exhaust. I just installed my ...

  1. #1
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    Just installed Bosal Twin, slight leak at DP

    Hi,

    I need some quick help from all of you that have changed your own exhaust.

    I just installed my bosal twin tip catback. I started it up and I've got a small air leak where the catback bolts up to the DP. it's not bad, but it's there. Is this going to be a problem? either now or down the road?

    btw, it sounds nice, not too loud. but I've got all the cats in place. I'll post some before and after sound clips when I get them loaded.

    Joel
    Street-2000 BRP Impreza 2.5RS Sedan
    Snow-04 Nitro Voltage 158/06 Burton Custom Bindings/04 Vans Fargo Boots
    Photo-Canon 20d and some lenses
    Tech-Apple iBook G4

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    Registered User scooby-x's Avatar
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    Quote Originally Posted by jojotherider
    Hi,

    I need some quick help from all of you that have changed your own exhaust.

    I just installed my bosal twin tip catback. I started it up and I've got a small air leak where the catback bolts up to the DP. it's not bad, but it's there. Is this going to be a problem? either now or down the road?

    btw, it sounds nice, not too loud. but I've got all the cats in place. I'll post some before and after sound clips when I get them loaded.

    Joel

    There should be no leaks, especially from a bosal, that is the stock peice on the 2005 now, with a single tip from SPT. Did you need a new gasket there? The goofy looking peice of lead? Did you remember to put that back on? But yeah an exhaust leak just gets worse as it works its way out... so take it off and put it back on, make sure all lined up, gasket in place, and tighten down all the way, even though those springs dont seem like you should, tighten as much as you can, use the stock bolts if possible too!!!
    04 Java Black Pearl - Sleek Eye

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    Quote Originally Posted by GOD The Almighty
    Patrick, you are a complete accident

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    thanks for the quick response. going back under as soon as I finish lunch.

    sooo much fun.

    joel
    Street-2000 BRP Impreza 2.5RS Sedan
    Snow-04 Nitro Voltage 158/06 Burton Custom Bindings/04 Vans Fargo Boots
    Photo-Canon 20d and some lenses
    Tech-Apple iBook G4

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    alrighty, so I tightened her down and got the leak taken care of. I'll check it a few times this week and see if we're all good. Those stoopid spring bolts. Why do they have the springs anyway?

    joel
    Street-2000 BRP Impreza 2.5RS Sedan
    Snow-04 Nitro Voltage 158/06 Burton Custom Bindings/04 Vans Fargo Boots
    Photo-Canon 20d and some lenses
    Tech-Apple iBook G4

  6. #5
    Registered User scooby-x's Avatar
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    You ever seen under the hood as an engine revs up and down? It moves back and forth right? So if your engine moves and the metal tubing that comes off of it is bolted to the chassis, it would prob crack, so it just allows for a little movement if it needs it, nissan throws some of theirs all the way to the axle back... that is weird. That is also why there is that peice of lead used as the gasket, it is soft and allows for some movement. But thats good that you got it fixed and I am glad I could help, now if I ever get my new RS-r downpipe, I can go play under the car too!!! At the BF Goodrich test drive thingy at the Atlantic City SEMA the STi's had that Bosal Exhaust on them all, it was a nice mellow tone, not really loud, is that about what yours is, or something different, cus those were all single tips.
    04 Java Black Pearl - Sleek Eye

    All you see is my license plate... SCOOBY-X

    Quote Originally Posted by GOD The Almighty
    Patrick, you are a complete accident

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    I'm gonna write up a review with before and after sound clips. I'll post a link here once I've done it. I have to re-record the after sound clip, it wasn't very good because the recorder was too close to the car.

    I have another question about those spring bolts. The springs are completely compressed. It won't have any room to travel. If I loosen it, I'm back to the leak. Think that'll be a problem?

    Joel
    Street-2000 BRP Impreza 2.5RS Sedan
    Snow-04 Nitro Voltage 158/06 Burton Custom Bindings/04 Vans Fargo Boots
    Photo-Canon 20d and some lenses
    Tech-Apple iBook G4

  8. #7
    Registered User scooby-x's Avatar
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    Hmmmmmmm... If it aint broke dont fix it
    04 Java Black Pearl - Sleek Eye

    All you see is my license plate... SCOOBY-X

    Quote Originally Posted by GOD The Almighty
    Patrick, you are a complete accident

  9. #8
    Registered User turbo_bxr's Avatar
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    i just used regular bolt on mine, those spring ones wouldnt doing thier job right anyways. i need to check tightness on mine soon.

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