High flow catalytic converters...

[BL33SU]

get a fake cat.. straight thru pipe but has the cat surround over it.. lookalike

[Spyda]

get a fake cat.. straight thru pipe but has the cat surround over it.. lookalike

I like this idea.

Does anyone have any opinions on this? Appart from the $6k fine you get for not having a cat.

[GoLfMan]

I like this idea.

Does anyone have any opinions on this? Appart from the $6k fine you get for not having a cat.

6k fine!

i'd rather just fork out the dough for a high flow!

[Golf Houso]

6k fine!

i'd rather just fork out the dough for a high flow!

Same, and I actually like idea of reducing NO2's from my car, I also realised that any high flow cat I buy has to have an O2 sensor port... or is this only a feature found on American vehicles?

[twin eng, twin turbs]

I have done the straight pipe conversion to a mate Toms VR6 a while back, but firstly i tried just gutting the core of the original cat with no success at all! Unlike most cats which have a core that simply crumbles with a large screw driver and hammer. The VAG cat converters core is unbelievably strong with a steel core. I gave up after drilling through the core and setting up the cat on a 50 ton press at work, but apart from bulging the sides of the pipe work out the core flattened a bit but was still firmly in place.... So i cut off the flanges of the cat and simply tig welded a straight length of 2 1/2" pipe in its place then welded the original guard back on. It worked well with a small increase in noise and power.

I had a mate in Wollongong have police go over his car as part of a blitz and run a length flexible cable up the 3" exhaust of his Nissan 200sx, but he had a high flow cat fitted and the cable stopped at the cat... So be cautious of doing this mod.

[Spyda]

On the subject of cats. What year does the car have to be for it to be LEGAL without a cat?

[gpk_gti]

the cat on the vr6 was worth from vw over $2k(and its absolutely massive!) when I checked ages ago.I had asked tuffy to put a high flow cat on mine and he said do you think a $200 "high flow" cat works better than the $2k vr6 one??? he also said that he believed power would be lost with a different cat,and the only way to gain power from the cat exercise was to de-cat it.obviously I wasnt game enough to try my luck with a fine.

if your cat is not working as it should then it means the guts have fallen out,which would mean that,
a- its more "high flow"
b-if you get pulled for your cat not working correctly then you can always claim ignorance and say you didnt know the guts had fallen out.