Centre pipes

  1. #1
    I have a piper 3" backbox. If I got a centre pipe like a supersprint one would it be illegal? and would it fail an MOT for noise or because I got rid of anything???
  2. #2
    bumpppppp
  3. #3
    legally you need a cat for an mot

    but some cars will still pass emssions without one

    but most guys drop a cat in for mots and then decat once its passed
  4. #4
    but isnt the cat in the manifold in Mk2 VTR's?
  5. #5
    cat is in the manifold on cars 2001 vtrs and after youd need a mani to decat.
  6. #6
    it depends some early mark2s were under car

    if it is cat in mani it will pass an mot with a supersprint on as you only need one box (the backbox) and a cat
  7. #7
    Quote:
    Originally Posted by NICK2506 View Post
    I have a piper 3" backbox. If I got a centre pipe like a supersprint one would it be illegal? and would it fail an MOT for noise or because I got rid of anything???
    If you have a car with the cat in the manifold (which most mk2 VTRs do) then you will be alright with the race supersprint centre pipe.

    That will not decat your car.

    G
  8. #8
    cool, i dont want a decat, but putting a center pipe on will make it louder right?
    where the heat sheild is i have like a metal box in the exhaust system. is that the cat? (i.e. does that mean my cat isnt in my mani?)
    so between the cat and the tail pipe do you have to have 1 box to pass an mot?
  9. #9
    bumppppp
  10. #10
    you have a centre silencer in the exhaust I'd expect.

    thats not your cat
  11. #11
    is it illegal to get rid of that?
  12. #12
    no not really
  13. #13
    why not really? lol
    would it pass an MOT without it?
  14. #14
    yes it should pass as long as the cat is in the system, willbe alrite mate
  15. #15
    if i get a centre pipe without a silencer and have my 3" backbox on will it be stupidly loud?
  16. #16
    it'l be loud yes
  17. #17
    hmm
    if i got one with a silencer would it still be louder than the standard pipe?
  18. #18
    bumppppp
  19. #19
    just buy it, if its not loud enough, decat it and itll make it louder and most probably give you more rasp
  20. #20
    decats a mission cos for each MOT have to change manifold. and if i dont have an MOT then technically my insurance is void, and at only 17 i cant risk having void insurance
  21. #21
    hmm may go for a centre pipe with no silencer