exhaust questions :)

  1. Established Member Joined: Jan 2009 kirkintilloch, Glasgow Posts: 1968 ep82 starlet gt turbo
    #1
    right im going to change my magnex backbox for a piper one.

    i currently have a supersprint race centre pipe with magnex backbox. what im wondering is will it be louder with the piper instead of the magnex ?

    im after somehting i bit louder without removing the cat

    car is a 2002 vtr.

    cheers.
  2. Forum Section Moderator Joined: Aug 2008 Liverpool Posts: 15517 Saxo VTR
    #2
    4-2-1 or 4-1 manifold?
  3. Established Member Joined: Jan 2009 kirkintilloch, Glasgow Posts: 1968 ep82 starlet gt turbo
    #3
    well i was thinking that but i rather not decat the car. will decating it make it louder than it is just now ?
  4. Saxperience Forum Bum Joined: Jan 2009 Soton - Hedge End Posts: 3143 TT 225, Charged Eunos
    #4
    Hell yes lol.

    Would be rapsier + popping.

    Have to think about mot though.
  5. Frequent Poster Joined: Aug 2004 Posts: 786
    #5
    Piper bacboxes tend to be a bit louder than magnex as magnex tend to be fairly quiet but usually see better power gains at the end of the day, if you dont want to de-cat the car then you can always try a 4-2-1 manifold or try changing the filter, what induction kit do you currently have on your car mate?
  6. Saxperience Forum Bum Joined: Jan 2009 Soton - Hedge End Posts: 3143 TT 225, Charged Eunos
    #6
    Quote:
    Originally Posted by L8R_VTR View Post
    Piper bacboxes tend to be a bit louder than magnex as magnex tend to be fairly quiet but usually see better power gains at the end of the day, if you dont want to de-cat the car then you can always try a 4-2-1 manifold or try changing the filter, what induction kit do you currently have on your car mate?
    His is a mk2 meaning the cat is in the mani. So by buying a 4 - 2 - 1 it would de - cat it...
  7. Established Member Joined: Jan 2009 kirkintilloch, Glasgow Posts: 1968 ep82 starlet gt turbo
    #7
    my cats in the mani so changing the mani is out the question unless i decat

    ive got a bmc on it mate.

    tempted to just decat it now. I can get mot down ok without it
  8. Saxperience Forum Bum Joined: Jan 2009 Soton - Hedge End Posts: 3143 TT 225, Charged Eunos
    #8
    Quote:
    Originally Posted by andymiller_VTR View Post
    my cats in the mani so changing the mani is out the question unless i decat

    ive got a bmc on it mate.

    tempted to just decat it now. I can get mot down ok without it
    Most people seem to know a few dodgey MOT'ers

    Ive heard you can fit a mk1 downpipe and it de - cats but it involves relocating the oil filter...
  9. Saxperience Post Whore Joined: Feb 2008 Liverpool Posts: 7393 Black Corsa C SRi
    #9
    has the supersrint not been cut to fit the magnex?
  10. Established Member Joined: Jan 2009 kirkintilloch, Glasgow Posts: 1968 ep82 starlet gt turbo
    #10
    Quote:
    Originally Posted by LeeM View Post
    has the supersrint not been cut to fit the magnex?
    well yes thats the other problem haha, i can get my garage to custom fit the piper though

    im swinging towards decat though i think......

    what would you people do if it was you ?
  11. Saxperience Post Whore Joined: Feb 2008 Liverpool Posts: 7393 Black Corsa C SRi
    #11
    magnex's are supposed to come alive with a decat, completely different sound. apparantly
  12. Forum Section Moderator Joined: Aug 2008 Liverpool Posts: 15517 Saxo VTR
    #12
    Quote:
    Originally Posted by LeeM View Post
    magnex's are supposed to come alive with a decat, completely different sound. apparantly
    Also heard this, Get a decat imo mate.
  13. Saxperience Forum Bum Joined: Feb 2007 Perth Posts: 4798 posi blue desire vt lookalike
    #13
    get the decat andy but also find a cheap mk1 cat centre pipe and back box. that way come mot you dont have to fuck around with the mani as its a complete bitch to do. also unless you get a 4-2-1 for a mk2 which are usaly pretty expensive you will have to relocate the oil filter.
  14. Established Member Joined: Jan 2009 kirkintilloch, Glasgow Posts: 1968 ep82 starlet gt turbo
    #14
    ok decat it is. now i have to decide what mani to get lol. i dont have alot to spend.

    i saw on here recently someone selling a 4-1 mani that you can fit both lamda sensors in and not relocate the oil filter. thats the one im after for now i think

    EDIT: ano man i know a "friendly" mot man though
  15. Forum Section Moderator Joined: Aug 2008 Liverpool Posts: 15517 Saxo VTR
    #15
    4-2-1 Supersprint is the best imo
  16. Saxperience Forum Bum Joined: Feb 2007 Perth Posts: 4798 posi blue desire vt lookalike
    #16
    im pretty sure you have to sleve the top lambda sensor otherwise the em light come's on. tbh id say your better with 4-2-1 a 4-1 give's you more gain in high revs as aposed to a 4-2-1 which give's you a better gain mid range revs. mid range revs are what you will be using on most journeys.
  17. Established Member Joined: Jan 2009 kirkintilloch, Glasgow Posts: 1968 ep82 starlet gt turbo
    #17
    it all comes down to money. i was looking at this one for now.

    http://cgi.ebay.co.uk/Saxo-1-4-1-6-V...3%3A1|294%3A50

    both lamda sensors fit in this and no need to relocate oil filter
  18. Saxperience Post Whore Joined: Feb 2008 Liverpool Posts: 7393 Black Corsa C SRi
    #18
    for a cheap decat effort just get a mk1 manifold and downpipe
  19. L-plater Joined: Nov 2008 Posts: 53
    #19
    Ive got a raceland 4-2-1 straight through pipe and janspeed back box and it sounds ace ( when it doesnt misfire) i would recomend janspeed because they are reasonably quite when your gentle but when you put your foot down its loud!
  20. Established Member Joined: Jan 2009 kirkintilloch, Glasgow Posts: 1968 ep82 starlet gt turbo
    #20
    Quote:
    Originally Posted by LeeM View Post
    for a cheap decat effort just get a mk1 manifold and downpipe
    To much effort moving oil filter, plus i want something new or new ish in good condition and its nearly impossible to find a mk1 downpipe and mani in good nick really.