should I remove my catalytic converter?
17-Jul-2002, 02:01 PM
#1
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should I remove my catalytic converter?
sup everyone,
I'll soon be putting on a new muffler along with custom piping (2 1/4") on my SI.
should I keep the catalytic converter in, or just run straight piping?
what are the benefits of removing the cat? will it be louder/faster? can I still pass emissions?
I dont want the sound to be overwhelming, so I was considering 2 resonators if I go with no cat.
any thoughts?
I'll soon be putting on a new muffler along with custom piping (2 1/4") on my SI.
should I keep the catalytic converter in, or just run straight piping?
what are the benefits of removing the cat? will it be louder/faster? can I still pass emissions?
I dont want the sound to be overwhelming, so I was considering 2 resonators if I go with no cat.
any thoughts?
17-Jul-2002, 03:30 PM
#3
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Yeah you go out and try to drive around without the cat and if you get pulled over and they see you have no cat... IMPOUNDED!!!! I have 3" custom piping and I use a high flow cat... I can gaurantee you will not pass emissions withought that cat... After all it does filter the exhaust from harmful emissions...
17-Jul-2002, 04:57 PM
#6
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Originally posted by Steve
dude leave the cat on but hollow it out..same deal as having no cat but if u get pulled over...to the cops eye u still have a cat!
thats what im doing...adds a good 7-15 hp
dude leave the cat on but hollow it out..same deal as having no cat but if u get pulled over...to the cops eye u still have a cat!
thats what im doing...adds a good 7-15 hp
17-Jul-2002, 05:00 PM
#8
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Originally posted by cosmic
are you sure about that? guarenteed if you dyno that you'll see a gain of 1hp if that.....
are you sure about that? guarenteed if you dyno that you'll see a gain of 1hp if that.....
17-Jul-2002, 05:09 PM
#11
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Originally posted by Steve
nope im sure of it cause its basically like having no cat its just the tube for the cat ive seen it done b4
nope im sure of it cause its basically like having no cat its just the tube for the cat ive seen it done b4
17-Jul-2002, 05:12 PM
#12
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Originally posted by HappyB16
My old CX passed an e-test without a cat.
I got pulled over without a cat = $400 fine
I replaced my cat w/ high-flow.
My experience...
It don't do SHIET!
My old CX passed an e-test without a cat.
I got pulled over without a cat = $400 fine
I replaced my cat w/ high-flow.
My experience...
It don't do SHIET!
17-Jul-2002, 05:22 PM
#13
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Join Date: Apr 2002
Location: Streetsville
Posts: 362
Originally posted by HappyB16
My old CX passed an e-test without a cat.
I got pulled over without a cat = $400 fine
I replaced my cat w/ high-flow.
My experience...
It don't do SHIET!
My old CX passed an e-test without a cat.
I got pulled over without a cat = $400 fine
I replaced my cat w/ high-flow.
My experience...
It don't do SHIET!
aight so this is what I'm getting:
- going with no cat will screw me with both cops AND emissions.
- a high-flow cat yields no perf gains, so skip that
- hollowing out my stock cat will save me from tickets, but doesnt guarantee a pass on emissions
...sooo... the best option is to stick with my stock catalytic converter and run a custom 2 1/4" mandrel bent pipe with a resonator to dampen/deepen/de-fart the sound.
the car has no turbo.. the only engine mod thus far is an AEM cold air.
17-Jul-2002, 06:08 PM
#14
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Join Date: Apr 2002
Location: Humping Bond007's leg
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Originally posted by illmatic_si
LOL, nothing??
aight so this is what I'm getting:
- going with no cat will screw me with both cops AND emissions.
- a high-flow cat yields no perf gains, so skip that
- hollowing out my stock cat will save me from tickets, but doesnt guarantee a pass on emissions
...sooo... the best option is to stick with my stock catalytic converter and run a custom 2 1/4" mandrel bent pipe with a resonator to dampen/deepen/de-fart the sound.
the car has no turbo.. the only engine mod thus far is an AEM cold air.
LOL, nothing??
aight so this is what I'm getting:
- going with no cat will screw me with both cops AND emissions.
- a high-flow cat yields no perf gains, so skip that
- hollowing out my stock cat will save me from tickets, but doesnt guarantee a pass on emissions
...sooo... the best option is to stick with my stock catalytic converter and run a custom 2 1/4" mandrel bent pipe with a resonator to dampen/deepen/de-fart the sound.
the car has no turbo.. the only engine mod thus far is an AEM cold air.
