1. Hi Guest. If you're not subscribing to us on YouTube yet, you're missing out on car news and reviews. Subscribe to our channel to get notified when we post new videos.
    Dismiss Notice
Dismiss Notice
Hi Guest, stickers are available from our online store. and are now half price.

sports cat or de-cat??

Discussion in 'Ibiza Mk3 (2000-2002)' started by turboholic, Feb 18, 2011.

  1. turboholic

    turboholic CupraPower

    Joined:
    Mar 4, 2010
    Messages:
    355
    Likes Received:
    0
    just wondering what the best option of exhaust is really??

    ive got a ko3s (approx 240bhp) and just ordered a cat back blueflame exhaust system but i also need the front section! im not worried about the MOT as i know people ;) but which is best for performance?? a de-cat or 100cell sport cat??
     
  2. turboholic

    turboholic CupraPower

    Joined:
    Mar 4, 2010
    Messages:
    355
    Likes Received:
    0
    anyone?? any help would be great
     
  3. shaun8215

    shaun8215 Guest

    Iv got a 3inch downpipe and decat which i found the turbo spools up a bit fast but also pops and bangs a lot more sounds nice to.
     
  4. turboholic

    turboholic CupraPower

    Joined:
    Mar 4, 2010
    Messages:
    355
    Likes Received:
    0
    does the decat affect performance much?
     
  5. chris_200120vt

    chris_200120vt MR carbon fibre

    Joined:
    Oct 4, 2008
    Messages:
    2,713
    Likes Received:
    0
    i would go with a sports cat least come mot time your not having to change downpipes over.
     
  6. Scott-o

    Joined:
    May 6, 2009
    Messages:
    3,500
    Likes Received:
    0
    decat if you know someone!

    You not already got a turbo back exhaust if your running 240hp?
     
  7. turboholic

    turboholic CupraPower

    Joined:
    Mar 4, 2010
    Messages:
    355
    Likes Received:
    0
    exhaust is standard atm and haven't had it on the rollers for a while so just guessing at 240bhp. MOT is fine as i know people ;)

    got a 2.5" cat back blueflame system on the way :)

    all im worried about is if i get pulled and they check the exhaust but my cupra is quite low so they won't be able to see it anyway :p

    decat is alot cheaper so might just go for that?
     
  8. chris_200120vt

    chris_200120vt MR carbon fibre

    Joined:
    Oct 4, 2008
    Messages:
    2,713
    Likes Received:
    0
    what other things have you done to the car apart from a k03s ?
     
  9. Scott-o

    Joined:
    May 6, 2009
    Messages:
    3,500
    Likes Received:
    0
    Wouldnt say its 240 then with standard exhaust on, thats what frees the power up, the downpipe :p

    I went decat as i know someone, i got resonated milltek catback with it so it doesnt sound like a tractor on idle, police will never tell by the noise. Just make sure if you get pulled to turn the engine off fairly quick as the exhaust gases stink haha
     
  10. turboholic

    turboholic CupraPower

    Joined:
    Mar 4, 2010
    Messages:
    355
    Likes Received:
    0
    stage 2 map, 4 bar fpr, jetex induction filter, forge spltr dv, silicone hoses, fmic, egr removed, few other things
     
  11. chris_200120vt

    chris_200120vt MR carbon fibre

    Joined:
    Oct 4, 2008
    Messages:
    2,713
    Likes Received:
    0
    to reach around the 240 mark you need full system you say your still on standard you would be looking more around 200-220 mark. once you have the new systm fitted should be 240ish but it is a dyno lottery
     
  12. butch20vt

    butch20vt Guest

    i have a dcat on my car and its much better than the sports cat i did have.
     
  13. Berg

    Joined:
    Apr 15, 2009
    Messages:
    2,191
    Likes Received:
    1
    Its a thing i kind of regret when i did my k03s setup

    I went for sports cat and now want a decat lol
     
  14. s1l3nc3r

    s1l3nc3r ASBO car.

    Joined:
    Jun 30, 2008
    Messages:
    1,558
    Likes Received:
    0
    get it to a custom place and get them to make the cat removable...Thats what im going to be doing to mine next week hopefully...:)
     
  15. AlexGSi2000

    Joined:
    Mar 1, 2009
    Messages:
    1,079
    Likes Received:
    0
    I have had full Milltek systems with sports cats on my cars in the past, just so I have a better chance come MOT time - its my daily drive so need to be as good as I can really, as I have heard of VOSA pulling over cars & checking for Catalysts - doing roadside emissions checks..etc

    A friend of mine had a full system made for him on his Passat 1.8T without a cat - think his O2 reading hit 0.4 or 4% at one point! lol
     
  16. turboholic

    turboholic CupraPower

    Joined:
    Mar 4, 2010
    Messages:
    355
    Likes Received:
    0
    cheers for all your help guys

    going to go for the decat then :)
     
  17. Olly20VT

    Olly20VT Full Member

    Joined:
    Jun 8, 2004
    Messages:
    1,234
    Likes Received:
    0
    I wouldn't if its a road car. If you have a bad accident and the car is taken away or you are unable to swap it back then the insurance company look at it there is a huge possibility they will not pay because the car by law should have a CAT and you have taken it off there for your insurance is invalid and they will not pay.
    Now don't forget its not just the money for the car, your insurance covers any damage to building or other people, you could end up paying out for years to come just for a few BHP.
    And a 100cell to decat is not much of a gain in power, std to 100 cell is still a noticeable gain.
     
  18. -=Rob=-

    -=Rob=- Beer or Car?

    Joined:
    Dec 14, 2002
    Messages:
    1,485
    Likes Received:
    0
    You sure you're running Stage2? I thought downpipe and sports cat was a pre-requisite for this?
    I'd not risk a de-cat personally, but each to their own. It's a gamble and a pain in the arse come MOT time.
     
  19. truCido

    truCido Race Lupo in progress...

    Joined:
    Dec 11, 2003
    Messages:
    2,940
    Likes Received:
    0
    yeah its definitely stage 2 (its my brothers car btw)

    Technically 100cell CAT is illegal as well....no way would you pass emissions with 100 cell, you can see straight through it lol.
     
  20. chris_200120vt

    chris_200120vt MR carbon fibre

    Joined:
    Oct 4, 2008
    Messages:
    2,713
    Likes Received:
    0
    i was thinking the same thing
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice