anyone ever gutted the cat converter?

1. wobby82 Frequent Poster Joined: Mar 2011 Posts: 839 icelancic grey 2oo2 vtr icelandic grey vts 2oo2

   #1 23rd August 2011, 18:45

   just wondering your experience if you had? thanks
2. logic_guy Saxperience Forum Bum Joined: Nov 2010 England Posts: 3423

   #2 23rd August 2011, 19:21

   Yes
   
   The only way to describe it was that it looked like a Honey Comb
   
   I used a Mahoosive, thick long ratchet to batter it out. It was worn out and started to rattle. On my Punto.
   
   My experience: Louder exhaust sound then on standard exhaust system. Seemed a bit better on acceleration. Failed its M.O.T. But when you got a mate that will pass you, its fine. Stunk of petrol when in traffic or on a cold day/ cold start up.
   
   Sometimes it made a noise that gurgled and splutter when you reved the engine.
   
   Why do you want to do it to yours?
3. Tontsy Saxperience Addict Joined: Oct 2008 Plymouth, Fiddling - under a two poster ramp Posts: 14064 Audi

   #3 23rd August 2011, 20:05

   manifold cat or under car cat?
   
   ive done a few mani cats, and had to melt them out, as they just wouldnt bash out !
   bastards!
4. Gandi699 Saxperience Post Whore Joined: Apr 2011 Posts: 9100 Amazon green VTR 16v, Inferno RS clio 182

   #4 23rd August 2011, 20:11

   My vtr is decatted with a supersprint decat but the cat I had was crazy - you can see right through it!
5. Cam Saxperience Post Whore Joined: Nov 2010 Kent Posts: 8439 Gen 7 Celica 190.

   #5 23rd August 2011, 20:11

   Quote:

   Originally Posted by wobby82 i did it already on my mk 2 vtr cat under mani, it was like what the radiator is made of! sounds awsome.... would a 421 sound even better

   if you get a manifold get a 4-1.
6. Saxotim Saxperience Forum Bum Joined: Nov 2007 Leeds Posts: 2865 172 Cup, Mk2 VTR

   #6 23rd August 2011, 20:46

   wondered why my vtr failed mot....
   
   
7. Cam Saxperience Post Whore Joined: Nov 2010 Kent Posts: 8439 Gen 7 Celica 190.

   #7 23rd August 2011, 20:49

   Quote:

   Originally Posted by Saxotim wondered why my vtr failed mot....

   You love it!
8. ashrichards Newbie Joined: Aug 2011 Posts: 2

   #8 23rd August 2011, 21:02

   yea ive done one but it sounded really odd with no internals in the cat really raspy
9. williamsvts Saxperience Post Whore Joined: Feb 2006 northumberland Posts: 7693 pulsar gtir, mk4 astra sxi

   #9 24th August 2011, 19:34

   why would you wnat to do that? just weigh them in and buy a decat.
10. user_54430 L-plater Joined: Aug 2011 Mannheim, Germany Posts: 44 01 Citroen Saxo, 05 Opel GTC Turbo, 99 Camaro Z2

    #10 24th August 2011, 20:04

    Did you guys get any codes on the ECU when you removed the cat?
    
    On my Subaru WRX when I removed the cat I got all kinds of error codes from the ECU because of oxygen sensors. I actually ended up installing an aftermarket ECU that had a cat elimination option lol
11. wobby82 Frequent Poster Joined: Mar 2011 Posts: 839 icelancic grey 2oo2 vtr icelandic grey vts 2oo2

    #11 24th August 2011, 20:14

    no mate
12. wobby82 Frequent Poster Joined: Mar 2011 Posts: 839 icelancic grey 2oo2 vtr icelandic grey vts 2oo2

    #12 27th August 2011, 08:02

    was short on funds at the time
13. LeeM Saxperience Post Whore Joined: Feb 2008 Liverpool Posts: 7393 Black Corsa C SRi

    #13 27th August 2011, 14:00

    did it on my mates gti-6, he reckoned it lost a fair bit of torque low down
14. logic_guy Saxperience Forum Bum Joined: Nov 2010 England Posts: 3423

    #14 27th August 2011, 14:33

    No ECU lights on my car.. The mani was UNDER the car, no where near the lamba sensors.
15. ryanmt Established Member Joined: Oct 2004 Warrington Posts: 1987 AX VTS 57 3.0 TDI A5

    #15 27th August 2011, 15:44

    I have, made a rather fierce potato cannon
    
    http://cabletiemotorsport.com/galler...MAGE_00118.jpg

    1 user thanked this post: logic_guy
16. kane_15023 Infrequent Poster Joined: Feb 2010 newport Posts: 173 Bmw M3, off-road vitara Mini Cooper s

    #16 29th August 2011, 20:38

    when i bought my williams clio this had been done and it sounded awful. so i got if off and put stainess straight through pipe on!!!
17. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

    #17 29th August 2011, 21:05

    Quote:

    Originally Posted by ryanmt I have, made a rather fierce potato cannon http://cabletiemotorsport.com/galler...MAGE_00118.jpg

    FLOL ryan...