MK5 Golf GTI

All Things Mk5 => Modifications & Technical Area => Performance Modifications => Topic started by: ArildStavrum on October 10, 2012, 11:19:25 am

Title: De Cat exhaust
Post by: ArildStavrum on October 10, 2012, 11:19:25 am

What difference will this make to my standard 06 gti?

I've no idea what it actually does or is but quite fancy a nicer sound...

Apologies if this is a ridiculous question!!!

Cheers

Title: Re: De Cat exhaust
Post by: nezquick on October 10, 2012, 11:30:13 am

probably not alot apart from bring up a cell light. youd need to get it mapped to take full advantage.

Title: Re: De Cat exhaust
Post by: graeme on October 10, 2012, 11:32:12 am

Decat - more than likely a mot fail , unless you know someone that will mot the car
100cell race cat - passed mot on mine (not sure if anyone else has had problems ? )
200cell sports cat - passes mots

All of these downpipes will increase flow in your exhaust causing less backpressure on the turbo ( more power, a bit more of a grumble from exhaust) , however some of them will be MOT fails or likely MOT fails.

A deacat would be the cheapest
100 cell cat is med price
200 cell in slightly higher agian.

To get the best gains out of an exhaust you are best getting the car remapped aswell ... If you do get the car remaped you will need a revision g diverter valve as they usualy fail with increased boost.  

Hope this helps.
 :happy2:

Title: Re: De Cat exhaust
Post by: ArildStavrum on October 10, 2012, 11:35:46 am

thanks guys.

cheers.

Title: Re: De Cat exhaust
Post by: sub39h on October 10, 2012, 11:59:59 am

If you just want a nicer sound (but are not after performance) all you need is a catback exhaust system. This replaces the OEM resonators with ones with a bit more flow so will make more sound.

This with a precat delete is probably your idea solution. These together will not affect your MOT

Title: Re: De Cat exhaust
Post by: ArildStavrum on October 10, 2012, 12:13:40 pm

cheers Sub - what kind of cost am I looking at for this? including the precat delete.

Title: Re: De Cat exhaust
Post by: mo5in on October 22, 2012, 12:56:01 pm

would this mak much of a difference if done wit ha car fitted with a milltek cat back non res system ?