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Model specific boards => Golf mk3 => Topic started by: murraymint on 13 March 2013, 22:55

Title: What cat with a ss exhaust and ss manifold?
Post by: murraymint on 13 March 2013, 22:55

As above what cat is best to use with a ss exhaust system and a ss manifold, a oem steel cat or a ss decat?

Title: Re: What cat with a ss exhaust and ss manifold?
Post by: VW BUSH on 14 March 2013, 09:20

Something that's legal. ..... :grin:

Title: Re: What cat with a ss exhaust and ss manifold?
Post by: murraymint on 14 March 2013, 09:35

 :whistle:

Title: Re: What cat with a ss exhaust and ss manifold?
Post by: boneybradley on 14 March 2013, 09:49

this is an impossible answer... I prefer to keep the o.e cat but others will say de-cat or sports cat's are better

removal of the cat does make a difference in noise and may give a few more horses. But I have found it also moves the power a bit higher up (and can affect torque output due to less back pressure), sports cat's are possibly best alround but for there cost, there an expensive mod for little gain!

Title: Re: What cat with a ss exhaust and ss manifold?
Post by: Wayne on 14 March 2013, 09:50

What makes you want a stainless manifold, the standard one is not that restrictive, given the choice I would run a standard manifold and cat then a decent system (Jetex is a good choice)

Title: Re: What cat with a ss exhaust and ss manifold?
Post by: murraymint on 14 March 2013, 12:38

I'm lookin at a ss manifold as mine sounds like it cracked and also the heat shield noise is starting to annoy me

this any good?

http://item.mobileweb.ebay.co.uk/viewitem?itemId=120916392088&index=19&nav=WATCHING&nid=51176229466

Title: Re: What cat with a ss exhaust and ss manifold?
Post by: Khare on 14 March 2013, 12:41

Read it properly mate....

Title: Re: What cat with a ss exhaust and ss manifold?
Post by: Foreveryoungaus16v on 14 March 2013, 12:43

Removing the CAT will make no difference in HP (will increase noise) the same as fitting a sports CAT as the

standard CAT is not restrictive on a standard 16v

Title: Re: What cat with a ss exhaust and ss manifold?
Post by: whileoceanasleeps on 14 March 2013, 12:54

i think you should go for a ss decat, more noise and backfires!  :evil:

Title: Re: What cat with a ss exhaust and ss manifold?
Post by: Foreveryoungaus16v on 14 March 2013, 12:58

Agreed, SS would be the better bet.  Just remember fitting it will not give u better performance just a louder

noise :smiley:

Title: Re: What cat with a ss exhaust and ss manifold?
Post by: whileoceanasleeps on 14 March 2013, 14:16

noise  :evil: going to decat mine this week too. it's far too quiet atm