Is it safe to remove my CAT?
ghey slow d16 modder
Joined: May 2002
Posts: 450
Likes: 0
From: fairfax, va
i took mine off only because i have concerns about prematurely clogging it and killing my engine. i have a turbo though, and run VERY rich most of the time. if you have a near stock engine (like you) it'll actually hurt the low-end performance of your car a little due to the loss of some back pressure, MAYBE (a very big maybe) add a coupe horsepower up-top. not worth it.
4500rpm hesitation
Joined: Jun 2003
Posts: 4,374
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From: Hesperia
Originally Posted by WideBodyEK
umm no,..im running no cat (test pipe) with my apexi WS catback and my exhaust sounds pretty damn good,..actually,..you hear my intake more than you hear my exhaust
test pipes are horribly illegal and carry a 2500 buck fine in most of the 50 states.. =D
ghey slow d16 modder
Joined: May 2002
Posts: 450
Likes: 0
From: fairfax, va
my test-pipe looks like a cat, and is basically a 2nd resonator. you can't really tell from the sound that there's nothing there, because of the turbo. my friend has 99 si with just about every bolt-on and the same exaust as me (thermal), and his car is louder even though he has a cat. go figgure.
Stage 3 Modified
Joined: Jun 2002
Posts: 5,907
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Originally Posted by alphaxxn
test pipes are horribly illegal and carry a 2500 buck fine in most of the 50 states.. =D
yes it does carry a hefty fine her in ohio running without a cat,..thats why i run a heat shield
Registered User
Joined: Feb 2004
Posts: 2,629
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im about to take off my cat which is in my headers for my civic cx by putin in new headers........ and i heard that a civic engine without a cat still emits alot les than your stardard 80-90's vehicles with ... hel... i had a thunderbird that had 3 cats on it !!!
Joined: Jul 2003
Posts: 28,282
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From: michigan
Originally Posted by ReVenGe
im about to take off my cat which is in my headers for my civic cx by putin in new headers........ and i heard that a civic engine without a cat still emits alot les than your stardard 80-90's vehicles with ... hel... i had a thunderbird that had 3 cats on it !!!
(the HEADER police have struck again)
Registered User
Joined: Feb 2004
Posts: 2,629
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Originally Posted by b16aEGcivic
was the civic cx offered with a v-6??
(the HEADER police have struck again)
(the HEADER police have struck again)
yeah... thats a true point you bring up.... but stil.... 3 cats? :doh:
i ended taking off 2 on the thunderbird.... thing frigen smoked every time i stepped on the gas and way too loud to enjoy.... and that was just the 6 :
Beast from the East
Joined: Sep 2003
Posts: 2,705
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From: VA
Originally Posted by ReVenGe
yeah... thats a true point you bring up.... but stil.... 3 cats? :doh:
i ended taking off 2 on the thunderbird.... thing frigen smoked every time i stepped on the gas and way too loud to enjoy.... and that was just the 6 :
i ended taking off 2 on the thunderbird.... thing frigen smoked every time i stepped on the gas and way too loud to enjoy.... and that was just the 6 :
h:
Registered User
Joined: Jan 2004
Posts: 488
Likes: 0
From: napa,california
Originally Posted by Kai
I don't know Canadian emissions laws, so no comment there.
I hate them. My car has been cat-free for a while now.
There are absolutely no ill effects to taking it off. Remember, the cat is basically a fancy clog in the exhaust system, the engine will run better without it.
I hate them. My car has been cat-free for a while now.
There are absolutely no ill effects to taking it off. Remember, the cat is basically a fancy clog in the exhaust system, the engine will run better without it.
