test pipe vs. hi flow cat
01-12-2003, 05:15 PM
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test pipe vs. hi flow cat
I have a six gen with the basics (listed below). I am interested in getting either a hi flow cat or test pipe. however i want my engine light to stay off does anyone with experience have input that would help?
01-12-2003, 05:19 PM
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Re: test pipe vs. hi flow cat (Sohc-Vtec)
You could convert to OBDI which would eliminate the secondary O2 sensor. I'm not sure how other guys running OBDII get away with the secondary O2 and a test pipe.
01-12-2003, 06:13 PM
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Re: test pipe vs. hi flow cat (ProEater)
The horsepower gain with the test pipe is minimal. Personally, I would prefer to lose 1-2 hp while not polluting the atmosphere as much.
Like someone said, if you have the money, buy the cat.
Contact SMS Products for a nice one
Like someone said, if you have the money, buy the cat.
Contact SMS Products for a nice one
01-13-2003, 02:02 PM
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Re: test pipe vs. hi flow cat (Sohc-Vtec)
however i want my engine light to stay off does anyone with experience have input that would help?
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01-13-2003, 02:08 PM
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Re: test pipe vs. hi flow cat (Spoon Hybrid)
if you run open header at the track with a CEL for not having the 02 sensor on the cat plugged in, will it hurt performace(being that you are throwing a CEL)?
[Modified by Dominican_Kid, 3:08 PM 1/13/2003]
[Modified by Dominican_Kid, 3:08 PM 1/13/2003]
01-13-2003, 02:11 PM
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Re: test pipe vs. hi flow cat (lazy bum shaughn)
The cat works just as fine, and it's legal.
01-13-2003, 03:59 PM
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Re: test pipe vs. hi flow cat (lazy bum shaughn)
thousands of dollars in fines if you get caught running a testpipe on the street... it will make your exhaust smell like *** so a cop will know if you get pulled over, plus the chemicals will damage the finish on your back bumper = not worth it 
01-13-2003, 04:00 PM
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Re: test pipe vs. hi flow cat (ProEater)
The cat works just as fine, and it's legal.
if you have the money go for it.....
if you have the money go for it.....
01-13-2003, 04:11 PM
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Re: test pipe vs. hi flow cat (Sohc-Vtec)
get the cat. runnin pipe like someone said b4 smells like ****. (cops no like smelly loud cars) i tried a bunch of stuff but you will still get an engine light for emissions. running a pipe also made my car well over the 95 decible requirement for california law, so i had to run my **** in 5th gear when im on the streets trying to cruse by cops.
dan
[Modified by OpTiX619, 1:12 AM 1/14/2003]
dan
[Modified by OpTiX619, 1:12 AM 1/14/2003]
01-13-2003, 04:21 PM
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Re: test pipe vs. hi flow cat (Sohc-Vtec)
My carsound cat crapped out after only 7months. 
If you get a GREAT deal on a high flow cat...get it. I'm gonna gut mine
.
And open header works great when racing.
-Rod
If you get a GREAT deal on a high flow cat...get it. I'm gonna gut mine.And open header works great when racing.
-Rod
01-13-2003, 04:28 PM
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Re: test pipe vs. hi flow cat (RK)
If you run a test pipe make sure it's the same diameter as your piping. Gutting a cat creates a open chamber which slows the exhaust flow. I am running a test pipe since I went from a close coupled VX cat to a b16 and Greddy exhaust. Car is still very quite, doesn't smell except on startup, and being from KY I still am running 10 times cleaner than the 1976 Chevy pickups running open headers getting 5mpg.
01-13-2003, 04:31 PM
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Re: test pipe vs. hi flow cat (nsxmatt)
Well right now...I just wanna get rid of the insane rattling from the cat. A little I can tolerate...but now it's just too loud...people think I'm draggin metal underneath the car. Whether or not it'll flow well doens't matter to me because my street setup is not for power anymore...just keeps the noise down. When I race...the cutout is uncapped for open header.
-Rod
-Rod
01-13-2003, 04:59 PM
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Re: test pipe vs. hi flow cat (nsxmatt)
If you run a test pipe make sure it's the same diameter as your piping. Gutting a cat creates a open chamber which slows the exhaust flow. .
01-13-2003, 06:46 PM
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Re: test pipe vs. hi flow cat (Sohc-Vtec)
I have a six gen with the basics (listed below). I am interested in getting either a hi flow cat or test pipe. however i want my engine light to stay off does anyone with experience have input that would help?
01-13-2003, 09:18 PM
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Re: test pipe vs. hi flow cat (Nextekhatch)
I heard the max was $250 and thats extreme at that.
01-13-2003, 09:29 PM
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Re: test pipe vs. hi flow cat (delsolguy)
The horsepower gain with the test pipe is minimal. Personally, I would prefer to lose 1-2 hp while not polluting the atmosphere as much.