brian11to1
Senior Member
What will happen if I clear out the Cat? It's an OBD0 car (90 Integra)... will it perform better?
Clearing The Cat
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sportlinecrx
Banned
probably. at least in the top end. might lose some low-end torque due to less backpressure.
sportlinecrx
Banned
but he has a built H22. i think he will feel a difference.
You'll feel and hear the difference. I got a 91 Integra and when i cleared out my cat, I could feel the high end power. Just make sure when you clear it out, you get EVERYTHING out. Its like a white brick with hella holes in it. You have to get all of that out or else it can clog up your muffler and then its pointless. Theres a wire mesh around the pipe on the inside, too. I left mines on there but now that i think about it, i should've taken that out too so the air can flow more freely without shit in the way.
lsvtec hatch93
Senior Member
the sound of header + a gutted cat i great
lsvtec
GNU/Linux Evangelist
Nah, we are talking about a 93 LS engine.
You will hear a difference, but you won't feel it. People tend to imagine things that they want to be true. You won't feel any power difference. Nobody can feel a 1-2 hp difference with their butt. As for this obsession with "free flowing" your 1.8l needs to move 1.8 liters of gasses out of it every 2 revolutions. That is not a lot of gas to move. Hollow cats are in the same league as cut springs. Ghetto. If that is the only think you can think of to make "more" power (meaning more noise) you are in the wrong hooby.
It is unlikely that you would get caught, but if you did the fine is huge. If you feel that your cat is that big of a performance suck (if it is not clogged it isn't sucking enough power to worry about) get a car sound. They are much less than a fine for tampering with your cat.
...i gotta disagree with you on that one. I don't like the sound of it much. i know someone who did that and it sounded like shit. he was running a DC header with his gutted cat on a stock exhaust system and it sounded worse than a riced-out ride.brian11to1
Senior Member
I don't have an H22... thats the plan later in life! However I think I'll go with with lsvtec, Eric's cool!
What are you talking about? You lost me in you last past about perfromance suck and gettin caught and fined and what?
What are you talking about? You lost me in you last past about perfromance suck and gettin caught and fined and what?
brian11to1
Senior Member
How do I use the damn Quote button?
there was an article in SCC a while back....gutting your cat out is not good
because its not the same diameter as the rest of the piping, the gutted cat causes the flow to be disrupted cause its not traveling through a pipe, and its not a smooth transition from gutted cat -> piping
Keep the cat, the gains (if any) wont be worth how stupid its gonna sound with a gutted cat, especially on a n/a car
brian11to1
Senior Member
I'm not clearing the cat now... Im convinced however how do I use the QOUTE BUTTON...
MaaseyRacer
Senior Member
you click it, and then enter you responce to it...
brian11to1
Senior Member
you didnt say to push it after I put my response in.. Thanks though man
C
civic_SI_hatch
Guest
arent after market cat gutted? im pretty sure they are.. well... my cat is gutted and top end is awsome
hcivic.com
Senior Member
buy a straight pipe 25 $ and alot less time
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