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Will a GTI Manifold decat a 1.4?

Posted: Thu Jan 19, 2012 2:47 am
by Kieranyeh
Hi,
Just looking at getting a 4-1 manifold of some kind, but when i was strolling around ebay i saw a gti manifold that does the same thing as standard.

Now, My cat is obviously in the downpipe so i was wondering if this would be ok (in terms of fitting) to do, will this fit direct to my current standard system?

Because branded or not, this is definately bypassing a cat converter and will make my car a little nippier and louder.

Any ideas? and i do know having a decat is illegal blah blah. Im not looking for huge power increases either!

cheers

Also for servicing my car, what oil?

would this be okay?

http://direct.asda.com/Castrol-GTX-10W- ... lt,pd.html

Re: Will a GTI Manifold decat a 1.4?

Posted: Thu Jan 19, 2012 3:44 pm
by 6N2 GTI 00
The GTI Manifold is pretty restrictive anyway so you won’t really notice any benefit if you fitted it to your 1.4 6N2.

Your best buying a Raceland 4-2-1 manifold which uses the original CAT or alternatively you can have a De-cat pipe custom made to fit with it.
Check out Craig's GTI build thread, he has a GTI running a Raceland Manifold with a custom De-cat pipe
http://www.uk-polos.net/view ... =7&t=45174

The Raceland manifold is universal fitment with the GTI and 1.4 Polo's so it will fit :)

That Castrol oil will be fine in your car :) I would get the VW Quantum Synta Silver oil though as its the best option and relatively cheap too

Re: Will a GTI Manifold decat a 1.4?

Posted: Thu Jan 19, 2012 9:27 pm
by Kieranyeh
Awesome, thanks for the reply pal, Yeah no worries i can see now, its the next bit after the manifold that needs to be swapped to decat.

Ill go for cheapest option as its a studnet budget time! and cant turn down that offer too easily :)

Re: Will a GTI Manifold decat a 1.4?

Posted: Fri Jan 20, 2012 12:47 pm
by 6N2 GTI 00
Yeah mate no worries :)

Yup the manifold for the GTI keeps the CAT so if you want to de-cat the exhaust you will need to get a custom pipe made, either that or buy a Sports CAT.