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Has anyone de cated there gti
Posted: Thu Mar 03, 2005 1:20 pm
by Jordan
Has anyone de cated there Gti was thinking of doing it. Is it worth the hastle does it sound better and give you more power.

Re: Has anyone de cated there gti
Posted: Thu Mar 03, 2005 5:51 pm
by bstardchild
Jordan wrote:Has anyone de cated there Gti was thinking of doing it. Is it worth the hastle does it sound better and give you more power.

Fine as long as you can put it back for the MOT
Modern cats aren't very restrictive but they do act like a silencer so it will be slightly rortier!!
Posted: Thu Mar 03, 2005 6:39 pm
by dubpolo
will taking the cat off do any damage to the engine?
Posted: Thu Mar 03, 2005 6:53 pm
by workinprogress
you can't decat a 6n2 gti cause theres a lambda probe after the cat . you would mess up the running if you did the best you could do is fit a high flow cat been on to miltek if they do one but they dont im trying to get them to make me one
Posted: Thu Mar 03, 2005 7:00 pm
by dubpolo
good luck on the high flow cat from miltek! have you got about £1000!!!
Posted: Thu Mar 03, 2005 8:26 pm
by JWC
workinprogress wrote:you can't decat a 6n2 gti cause theres a lambda probe after the cat . you would mess up the running if you did the best you could do is fit a high flow cat been on to miltek if they do one but they dont im trying to get them to make me one
Are you confusing that with the pre-catylist? Having one after the cat wouldn't help in determining the mixture would it?
Posted: Thu Mar 03, 2005 11:47 pm
by workinprogress
having one after the cat also lets the ecu know if the cats doing its job properly

so by removing the cat your opening up a whole box of trouble and yes theirs definetely a probe in front and after the cat . so getting a high flow item is the only way around the problem but miltek are a lot cheaper than a G mate the salesman i was talking to said he could do the cat as a universal one for a bit over a ton
Posted: Fri Mar 04, 2005 11:07 am
by dubpolo
they retail at over 5 ton!
Posted: Fri Mar 04, 2005 2:15 pm
by Jordan
Richard harper on this site has de cated his gti and he got powerflow to make him a de cat pipe, they drill a hole in the pipe and fit a nut into it for the sensor to screw into.

Posted: Fri Mar 04, 2005 4:29 pm
by dubpolo
its very easy to do! i'ed make my own!
Posted: Sat Mar 05, 2005 9:37 am
by RICHARD HARPER
Like Jordan said i've de-catted my gti with no problems apart from the fuel consumption.
I now get less miles to a tank of fuel.
Doesn't bother me though as it feels like theres more pull when you hit the accelerator, is that cause theres less restrictions for the exhaust gagses to go through ?
Got it emmissions tested too @a local garage and it passsed to my suprise.....
How weird!!!
Posted: Sat Mar 05, 2005 12:21 pm
by Jordan
Thats funny how you past the emmision test. Yeah your right, theres less restriction for the gases to flow so it can get more air in n out of the engine faster so it will use more fuel. Did your car get alot louder with the de cat or just a little bit of a difference.
Posted: Fri Jun 24, 2005 12:32 pm
by Jordan
Still thinking bout doing this. Has anyone else de cated there gti out there.

Posted: Fri Jun 24, 2005 5:50 pm
by moynas
My cats bracket has broken so ive cliped it up for now! was thinkin on doin this to my exhaust system may look into this more i think!
Posted: Mon Jun 27, 2005 11:51 am
by Jordan
Yeah thinking bout getting this done soon too. Just getting a bit worried in case the car goes into limp mode because the sensor is not connected.