Gutting Your Cat!!!
12-31-2002, 01:09 PM
#13
0.0 BAR
Join Date: Dec 2002
Posts: 9
Re:Gutting Your Cat!!!
Factory Honda cats are already some of the highest flowing cats from an oem manufacture. Gutting it could not only get you introuble With the smog patrol but can also create alot of turbulance and increase backpressure since the ehaust gasses will now go into a bigger chamber and then out a small one again. This could actually hurt power. If you want to get around your cat have a straight piece of pipe made to fit in place of your cat and keep it around when it is time to get your car tested again. It is a common misconception that gutting your cat frees up all sorts of horsepower. I made a custom cat replacement pipe for my car out of a piece of exhaust pipe equal inlength to my cat and welded on the proper flanges that I got from a cat in a junkyard.
12-31-2002, 03:13 PM
#14
0.0 BAR
Thread Starter
Join Date: Dec 2002
Posts: 0
Re:Gutting Your Cat!!!
well here in the state of california... Junk yards are not allowed to sell used cats.... but it is a good idea of using the flanges the cat already has.... well the reason i did this to it.. was that there was a big *** dent in it anyways.... (I hit a rock when i was driving it on a muddy road) ... but at least i now have flanges... and ill get an aftermarket Cat later on when i need it... but thanks for the info...
10-18-2005, 11:38 PM
#20
1.5 BAR
Join Date: Jul 2003
Posts: 762
Re: Gutting Your Cat!!!
I really don't understand why people do this.
It's really, really stupid.
If your OEM cat is in good condition you can sell it for at least 35-50 dollars. Then make a test pipe that is a decent size!
Even if your cat is gutted it still has POS 1.75'' outlets! Hmm....2.5'' downpipe to 1.75'' inlet going into a fucked up gutted chamber thing, to the 1.75'' outlet ...to probably a 2.5'' or 3'' exhaust?
Seems really fucked up and stupid if you ask me. Not to mention gutted cats sound like ----, sometimes rattle, and sometimes smell.
I don't really like the sound of a test pipe either, I prefer replacing the cat with a resonator or just a carsound high flow.
It's really, really stupid.
If your OEM cat is in good condition you can sell it for at least 35-50 dollars. Then make a test pipe that is a decent size!
Even if your cat is gutted it still has POS 1.75'' outlets! Hmm....2.5'' downpipe to 1.75'' inlet going into a fucked up gutted chamber thing, to the 1.75'' outlet ...to probably a 2.5'' or 3'' exhaust?
Seems really fucked up and stupid if you ask me. Not to mention gutted cats sound like ----, sometimes rattle, and sometimes smell.
I don't really like the sound of a test pipe either, I prefer replacing the cat with a resonator or just a carsound high flow.
