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Should I gut my cat?

druzilla32

By druzilla32,
in General Automotive Discussion

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usuckpoo Community Regular

usuckpoo

Posted
Posted

U could try hollowing out the cat and inserting a pipe through the cat. Benefits of this are:

1. The original cat is still in place.

2. If u tap the cat it wont sound hollow, since there is still some cat material left in it.

3. U get the performance of a straight through pipe...plus the flames to boot (i love the flames the most, although the performance increase is not much)

NA_R33 Grand Master

NA_R33

Posted
Posted

i dont know if its different for na's and turbos but when i did i got a very noticeable increase in power and the flames!!! but then i got the shits cause it made the resonance in my exaust 10 times louder so i got a new one. the fine for having a cat that doesnt work is 200 bucks the fine for having no cat at all is 2000 bucks, take ur pick.

Duncan Grand Master

Duncan

Posted
Posted

In NSW it is 10,000 if you're caught, details are on the EPA sight, search for catalytic converter.

Of course, how you would get caught is a different matter, presumably you would have time to rectify it before being tested....

It just seems crazy to me, risking a fine that big for marginal gain.

Warpspeed Experienced

Warpspeed

Posted
Posted

If you run a straight pipe through the centre of your cat no one will know.

But there will be no measurable performance difference, there might be a bit more noise, and there will be more black crap at the back of your car which will discolour the paintwork and bumper.

If your cat has disintegrated and is rattling or blocking the pipe, get it replaced.

Craved Grand Master

Craved

Posted
Posted

My mate had this done to his CA18DET powered car, before this happened i would pull away in top end quite a bit! Now though they are even up top, with no changes to management or anything, either car!

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