Hey everyone!
I'm new to this site, but I absolutely love it already!
Quick question:
I have a 1994 Prelude F22 S, I recently had my Catalytic converter removed and replaced with a straight pipe....
I'm from Illinois and did my last emissions test earlier this year, so I won't have to get it tested anymore..but my question is, does removing it hurt my car??
It's A LOT louder, and fortunately it doesn't have a bumble bee exhaust sound either...it's deep up until 3,000 rpm's then it gets real loud, and around 3,500 rmp's it gets a little crackly, but it's not TOO annoying.
If you are lucky enough to live in a state without emissions test, going without a cat can make significant horsepower improvement... I ran without one on my Supra but it was mainly just for track duty. It also is necessary if you plan on running leaded race gas (which I was, VP C16)...
High flow cats are great.. but expensive and still not nearly as free flowing as no cat.
A resonated test pipe is a better solution than a straight pipe, as the noise levels are no where near as annoying. Plus it is more "stealthy" you'll attract attention to your car with the straight pipe.
The guy asked a question man, you can either ignore it (very easy to do) or offer some advice. Either way works... but I see no reason to be rude to the guy just for asking a question.
The only way anyone learns about this stuff is by trial and error and asking people for help is the best way to avoid error.
The only way anyone learns about this stuff is by trial and error and asking people for help is the best way to avoid error.
Just my 2c.
or its just that the 4th gen has been out of production for over 10 years and most of us that had one have already tested everything thats been available, which is why this thread has gotten so bad already.
on a supra, its a little different on FI w/o a cat. on a damn f22 that barely makes 100 hp to the wheels? i don't think it makes a difference. we even had a good thread on here about high flow cats (different shapes etc) and had their flow info on them.
it pretty much showed little to no difference running a high quality cat over test pipe. i ran a test pipe for a few weeks. it makes your car stink. i bought a random tech cat. i passed emissions and retained most of the flow.
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or its just that the 4th gen has been out of production for over 10 years and most of us that had one have already tested everything thats been available, which is why this thread has gotten so bad already.
The Turbo Buick hasn't been out for 20 years but there are still lively discussions all the time at http://www.turbobuick.com
The guy asked a question man, you can either ignore it (very easy to do) or offer some advice. Either way works... but I see no reason to be rude to the guy just for asking a question.
The only way anyone learns about this stuff is by trial and error and asking people for help is the best way to avoid error.
Just my 2c.
I completely agree. We all started somewhere. Back in 2000, I installed a Field's vtec controller and adjusted the vtec engagement to 3000 rpm.
Dude, just leave your entire exhaust system alone until you get boost/nitrous. It's not going to make a worthy difference...
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Dude, just leave your entire exhaust system alone until you get boost/nitrous. It's not going to make a worthy difference...
seriously! listen to this man. Save your money and do suspension/brake upgrades before power mods. The most cost-effective power mod is the JRSC. Dollar for dollar it beats out any mod in in long-run costs (Nitrous is cheaper in short-run, but bottle refills aren't cheap).
Thanks everyone for the replies and opinions.
I'm not looking to add mad horsepower or any hp at all, hehe, which is why I asked if "it hurt the car in any way" by removing it.
I've had my Lude for 3 yrs now and it's been mainly a DD, and and any money into it has been for looks (black rims, chrome lip, HID kit, Vertical doors, sound system, in dash flip screen) I recently started messing with direct bolt on's ( Short ram intake, Headers, Apexi N1 exhaust, and recently the straight pipe)
My car is looks only...everyone here knows that the rated 130hp, and like was previously mentioned maybe 100 at the wheels isn't impressing anyone...but it looks amazing and runs better than most 13 year old cars...
For performance I depend on my 93' 300zxTT...
Someone mentioned leaving the exhaust alone till I boost?
I'm not planning on boosting.
This would require, an H22 swap ( what, 2 grand?) Dealing with problems after the swap...
A 2,000 dollar turbo kit...
dealing with problem after boosting.
So, maybe $4,000-$5,000 later and I'm at maybe 200hp?...eh..
My full $800 exhaust system on the 300zx put me at around 330hp.
Sorry for rambling, but I was simply asking this because I've seen my brother gain nice power in his evo when adding a test pipe, and my 300zx also sounded better and drove a little quicker, but these are all turbo engines, where as I was concerned if I'd get the loud annoying exhaust sound, and end up hurting my N/A engine when doing it to my lude.
Thanks for everyone's 2 cent though, and sorry if I caused any trouble.
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