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Can i cut the curved end off my exhaust

  • 16-03-2009 1:09pm
    #1
    Registered Users, Registered Users 2 Posts: 2,689 ✭✭✭


    Can i cut the curved end off my exhaust with it sounding like a tractor? Just need to cut about 3inches of the end of the exhaust so i can fit a straight exhaust tip for my rear bumper i put on about a year ago:rolleyes: Been meaning to sort this out for ages:p

    Cheers in advance.

    Pic if it helps P060209_171303.jpg


Comments

  • Moderators, Regional Midwest Moderators Posts: 11,183 Mod ✭✭✭✭MarkR


    If it's just the steel pipe part at the very end, you should be able to do it without any notinceable effect. I did it to a colt before that had a curved flange at the end that made it look like a pea shooter.


  • Registered Users, Registered Users 2 Posts: 2,689 ✭✭✭Vain


    MarkR wrote: »
    If it's just the steel pipe part at the very end, you should be able to do it without any notinceable effect. I did it to a colt before that had a curved flange at the end that made it look like a pea shooter.

    Ya just the very end part where it curves down, if i cut it there will be around a 3inch straight pipe going back into the back box. Did it make the exhaust noisy?


  • Registered Users, Registered Users 2 Posts: 17,819 ✭✭✭✭peasant


    It won't change the sound one bit, even if you cut it straight at the box.

    The end bit of the exhaust is only there (and curved) to direct the gases at the road (for better dispersal, especially in diesels) and to prevent rain water from getting in.


  • Registered Users, Registered Users 2 Posts: 942 ✭✭✭gofaster_s13


    On a diesel it might blacken the bumper if you cut it off


  • Moderators, Society & Culture Moderators Posts: 40,361 Mod ✭✭✭✭Gumbo


    On a diesel it might blacken the bumper if you cut it off

    i presume the exhaust tip is a chrome pipe that will stick out straight and therefore avoid the gases hitting the bumper?


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  • Registered Users, Registered Users 2 Posts: 2,689 ✭✭✭Vain


    On a diesel it might blacken the bumper if you cut it off
    kceire wrote: »
    i presume the exhaust tip is a chrome pipe that will stick out straight and therefore avoid the gases hitting the bumper?

    Its petrol so wont be a problem.


  • Closed Accounts Posts: 645 ✭✭✭kazul


    By all means cut it off but replace it with a straight piece that extends just to the edge of the bumper, chrome would look good.
    Aerodynamics, particularly on cars with a "flat" back have a tendency to hold or draw back exhaust gases especially if the tailpipe is too short. VW designed it that way for a reason...Germans don't have a tendency for "form over function" C0 is a silent killer


  • Registered Users, Registered Users 2 Posts: 12,863 ✭✭✭✭crosstownk


    It should be no problem but check what the exhaust gasses will meet as the pass from the shortened pipe - anything plastic may distort over time.

    I remember a problem a good few years ago (mid - late 1990s) with VW Polos. When mudflaps were fitted they ended up being distorted by the hot exhaust gasses. IIRC, the solution was modified mudflaps.

    As a follow on to kazul's post..... I remember a problem with 3B Passats when they were initially launched. We had a couple where customers reported that the roof cloth was 'blackening'. It was only happening with models that had aftermarket sunroofs fitted. Exhaust gasses were getting in through the chassis due to air pressure differences (suction) when the roof was open. This didn't happen on models with factory fitted sunroof as the holes in the chassis were blocked at factory level. The solution was to pump expandable foam into the rear chassis legs.


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