Carsound vs. Testpipe - Honda Prelude Forum

WillHoman · 07-29-2002, 08:21 PM

Hey I've been doing alot of searches about replacing the cat, a couple things that I don't have clear is how loud is the carsound cat vs. the testpipe because I would rather have the carsound if it is not too loud. Also is it worth 80 bucks, I have 167.000 miles on my car and figured the cat would be pretty bad anyways?

thanks for your help

will

blkvteclude · 07-29-2002, 09:10 PM

whasup man i got a testpipe with greddy PE exhaust yea its loud but mainly only loud when im accelerating but when going a stedy speed its pretty calm also i shoot flames out all the time and a couple of people that i have raced and won against said that after i shoot flames it smells really bad lol that is their torture for loosing but anyways dont pay 80$ for it get it cheaper at testpipes.com

WillHoman · 07-29-2002, 09:27 PM

Alright thanks blkvteclude, i've also heard that if it is too much free flow then you don't get enough back pressure??? I have stock pipes with a stright through muffler do you think I will get much more hp with the test pipe

Fast&furiuslude · 07-29-2002, 10:23 PM

In my experience testpipe is horriblely loud,and actually made my car slower. just my 2 cents..

WillHoman · 07-30-2002, 06:43 AM

see thats what I was afraid of, what about carsound?

4thGVtec · 07-30-2002, 08:27 AM

with stock piping, your not gonna gain at all anyways

WillHoman · 07-30-2002, 10:52 AM

yeah but carsound is susposed to have a better free flow

AccordSleeper · 07-30-2002, 11:44 AM

I have a carsound cat, it seems a tad louder. I'm not sure about power since I got an H22 installed at the same time.

I would say stay legal, the extra 1-2hp on the top end is not worth the risk of a fine or the smell.

Eddiebx · 07-30-2002, 12:07 PM

Quote:

Originally posted by AccordSleeper
I have a carsound cat, it seems a tad louder. I'm not sure about power since I got an H22 installed at the same time.

I would say stay legal, the extra 1-2hp on the top end is not worth the risk of a fine or the smell.

Werd, no cat smells bad, I can't stand the smell. I am welding in a carsounds cat in a few days.

Eddie

beenerachi · 07-30-2002, 12:10 PM

can someone explain to me why a testpipe 'could' decrease performance?

blkvteclude · 07-30-2002, 12:20 PM

well if you have friends theres always a way you can get your cat inspected me on the other hand i didnt have a cat period when i was doin the swap so i just got the testpipe instead, i got a friend thats going to pass my car .... i hope

AccordSleeper · 07-30-2002, 01:25 PM

Quote:

Originally posted by beenerachi
can someone explain to me why a testpipe 'could' decrease performance?

Too low exhaust flow velocity or as some say too little backpressure. On H22s test pipes seem to work at the track, but I would guess that unless you have a Apexi WS exhaust that is not straight through you will lose some torque.

My friend will pass my car, but a test pipe would make my car loud enough to get pulled over. Then if a cop suspects I don't have a cat due to the rotten egg smell they can easily look under the car and bamo a hefty fine.

PreludeNYC · 08-06-2002, 03:01 PM

I have the Greddy SP and 2.25 test pipe from www.testpipe.com it doesn't sound bad at all, but then again SP is a nice quiet exhaust....

Jose

preludestud11 · 08-06-2002, 08:50 PM

I also have a test pipe from testpipe.com, i actually did feel a power gain when i put mine on, didnt have anything else done to my car when i put it on. It changed the sound like it was puttin all the back pressure at the muffler, not the cat anymore..

Rich

WillHoman · 08-07-2002, 02:02 PM

Thanks for all the feedback everyone...