Drilled out CAT

[BLOWNSS]

Hey ppl i jus picked up a vtss supercharge and i dnt really like tha sound of tha exhaust it sounds wierd i cant xplain tha noise but tha guy i bought tha car off says that he got tha CAT drilled out which allows more air flow and he sed thats y it has tha funny noise sounds like its rattling coz ma mate has a stock vs wit n xhaust n i like tha sound of his more than mine is this normal...

 

[Not_An_Abba_Fan]

Unbolt the exhaust off the back of the cat and have a look inside. If it is drilled out or smashed out, get another one. It really doesn't make that much difference to flow. Having two cats is better again. If the flow is an issue get steel hi flow cats.

 

[minux]

Isnt illegal to modify any catalytic convertor?

 

[fabz]

Isnt illegal to modify any catalytic convertor?

100% and massive fines too. Not worth touching but i would replace that cat quick smart. only takes one copper with some knowledge to bust you.

 

[BLOWNSS]

thanx guys yea he sed it was really illegal but wats so illegal bout it and do u guys think thats wats makin ma xhaust sound crappy

 

[Not_An_Abba_Fan]

The cat changes the exhaust gases to less harmful ones. It's an EPA law and the penalties are quite harsh. Having no guts in it will make the exhaust sound tinny and hollow, almost raspy at certain revs.

 

[BLOWNSS]

thanx Not_An_Abba_Fan u really no ure stuff so its its sounds bad and is highly illegal y wood tha previous owner dun this wat benefits does it have and how much wood it b to replace tha CAT wit a highflow 1

 

[GOTMYN]

Cat Replacement

Hi guys, I replaced my single empty cat with twin stainless high flow for $600

 

[BLOWNSS]

hey chrisso 600 thats alrite wat benefits did u get from it

 

[calais_304]

drilling out cats, isn't that what ppl in 6cyl do to make em sound tough? where i come from it's considered a sign of fagginess if your found to have your cat drilled:thumbsup: just get it fixed before the popo are onto you.