Whats a CAT BACK?? :D

  1. #1
    Hi everyone, looking to buy a new exhaust for my car and I've seen one I like, I've heard before that some exhasts will fail your M.O.T

    The exhaust im looking a has a cat back, what exactly does that mean??

    Cheers!
  2. #2
    it means it starts from the cat back, so you should be ok on the M.O.T unless it's stupid loud.
  3. #3
    Cat back is an exhaust system from the cars CAT onwards.
    So in such a system you get a downpipe and the backbox (these come after
    the CAT) hence a CAT back system.
  4. #4
    it means it replaces the standard exhaust ffrom just after the catalysic convertor

    as long as the catalysic convertor is in place for mot and is working you should pass the mot thats asuming the engine is ok and lamba sensors are ok in first place

    what exhaust is it
  5. #5
    Well, my car isnt actually a saxo, but i posted on here because people seem to just... know more!! lol

    Anyway thanks for the replys guys!!


    And hessle its a powerflow exhaust..
  6. #6
    so what car do you have


    powerflow are custom so will make it to what you wnat

    certain poweflow centres have bad reputation for there work so maybe get to see some of there work before you pay for it
  7. #7
    I have a mk4 Astra

    The powerflow exhaust is on ebay...
  8. #8
    oh right

    well hope its ok for you

    personally id get a well know brand myself but its upto you at end of the day
  9. #9
    Ok, thanks, do you think it will give a good sound..
  10. #10
    powerflow can make it any sound really so cant tell
  11. #11
    Oh... Well its twin exit, one on each side.... Looks good to me