exhaust help

  1. #1
    hi all i have a 1999 westie i am wanting to get a little better performance from my car the car is lowed by 40 mm and has breathing mods i am wanting to decat it and put a 4 branch manni on it is there anyway of doing this witout making the car alot louder i like the noise the K&N makes when i floor it thanks
  2. #2
    Youll never get a "quiet" full system that adds power esp with a decat lol

    Last time i was on here supersprint or OMP grp N's seem to be the cheapest full systems.

    Or a BTB for big power.

    Matt.
  3. #3
    Supersprint or ashley seem to give good gains.

    And have a look at the supersprint manifold or the janspeed.

    Also a pipercross foam filter will be even louder than your K an N...

    ...hence why i love mine. lol
  4. #4
    haha is there any that arnt so loud if your not floorin it, say below 3000 rpm? and maybe abit raspy at higher revs? thanks
  5. #5
    Decats tend to be very raspy but you WILL NOT find a quite system that im sure.

    Matt.