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Model specific boards => Golf mk3 => Topic started by: xionsolaris on 01 August 2013, 19:25

Title: 16v decat
Post by: xionsolaris on 01 August 2013, 19:25
I have a welded stainless steel exhaust bought it on ebay for my 8v which it dont fit. It only has a back box do the valvers sound over the top with straight through or is it worth the gains with free flow exhaust over standard system.
Title: Re: 16v decat
Post by: Foreveryoungaus16v on 02 August 2013, 14:16
What I understand decat makes no gains
Title: Re: 16v decat
Post by: gazareth on 02 August 2013, 18:17
it must make some gain. maybe slight but must make a difference. and sounds better.
Title: Re: 16v decat
Post by: madmanmart on 02 August 2013, 19:57
Ive run a decat on mine for 5 years, defo has a improved throttle response.

Plus it prolongs the life of the cat only using it for one day a year.....  :grin:
Title: Re: 16v decat
Post by: gazpowells on 02 August 2013, 20:01
Decat not worth the hassle for the very little gains and mot time
Title: Re: 16v decat
Post by: madmanmart on 02 August 2013, 20:07
Plus it gives two fingers up to the tree huggers  :laugh:
Title: Re: 16v decat
Post by: tweed on 02 August 2013, 20:48
I decat all my cars just for sound  :laugh:

and does speed up the revs.
Title: Re: 16v decat
Post by: Foreveryoungaus16v on 02 August 2013, 21:21
Plus it gives two fingers up to the tree huggers  :laugh:

Lol very true
Title: Re: 16v decat
Post by: Foreveryoungaus16v on 02 August 2013, 21:26
Tempted to get a non res jetex system with de cat :evil:
Title: Re: 16v decat
Post by: xionsolaris on 02 August 2013, 22:59
I managed to get mine for £26 pound pro flow system I think its like powerflow exhaust system it came of a 16v supercharged golf
Title: Re: 16v decat
Post by: Ess_Three on 02 August 2013, 23:59
it must make some gain. maybe slight but must make a difference. and sounds better.

Why must it?

If the cat isn't restrictive, removing it won't give a gain...will it?

If the Cat is good enough for a VR6 Corrado, do you expect it to restrict a 2.0 16v Golf?
Title: Re: 16v decat
Post by: Wayne on 03 August 2013, 00:02
I remember a rolling road session once on a VR6 and it was run with a decat to see what gains it would give, the answer in real terms was nothing.
Title: Re: 16v decat
Post by: gazareth on 03 August 2013, 14:20
well in that case the cat was not the bottleneck to power output. but if your going for big power then eventually it will have to be shown the door. and off course its 1 less thing to go wrong if it aint there.