a couple cat questions???

[CFourDX]

ive got fireball catback, and dc header, and aem cai, is it not a good idea for me to leave my stock cat and have theses mods, if so what cat is a good legal cat and if at all a lower profile because my car is pretty low. also is it possible to pinch your cat at all from strapping too much, and has anyone done it???

[court]

high flow cats work well

[Dreamspeed]

you can gut the cat if your strapped for cash and want to shoot more smog or you can get a high flow cat like one from RANDOM

[CFourDX]

how much do high flow cats usually run? $?

[Daniel]

According to Andre (NSXboy), hi-flow cats aren't a good performance mod. Don't ask me why, but that's what he said, and he's a track boy so I'm pretty sure he knows what he's talking about. As for pricing, I don't know, $200 maybe?

[CFourDX]

why isnt it good to get a high flow cat?

[shiftgear79]

maybe im wrong but doesnt cat back exhuast include the cat? it did on my car and my friends car but there domestics

[ScHeL]

Originally posted by shiftgear79
maybe im wrong but doesnt cat back exhuast include the cat? it did on my car and my friends car but there domestics

Cats on imports are before a "cat-back" exhaust system.

I have a Random Technology High Flow cat on my car and a number of things about cats on my website...

http://schel.streetracing.org/exhaust

I know Random has the best reputation and it will continue to free up the flow of your car. This will allow it to breathe better. I had had a gutted can and that was making me looser power vs when I put in the Random... so take it however you desire... but I would get a Random Tech over any other brand adn the price depends on the size... mine was $215 I think... but they range from $175-$350 and are CARB legal. :D

ScHeL

[TrustGs-R]

agreed...random is good stuff..
they run anywhere from 200-250 depending on your car.

Basically if you run a high flow cat/straight pipe on a weenie NA car...you lose low end power...but gain some on the top end.... FI cars gain nicely from str8/hf cats.

NA cars with good power production will see good gains as well as you're helping the scavenging flow.

I am uncertain why Andre doesn't like hf cats.

[Daniel]

Originally posted by TrustGs-R
I am uncertain why Andre doesn't like hf cats.

Wassup Trust. Yeah, I don't know why Andre hates cats. Maybe he got scratched by one when he was young, :D. HAHAHAHA, get it? Man, what a stupid joke.

Seriously, I don't think I'd really spend my money on a hi-flow cat. It might be the LAST thing I'd do to my car, but there are probably better things you could buy for the same amount of money, power-makers or otherwise.

[TrustGs-R]

daniel:

you are correct sir..for your applications you can buy a lot better bang/buck mods

[Chris]

its because "high flow" cats arent really better flowing than a regular cat. Trust me.

[TrustGs-R]

actually...it depends on application and on which type you get.

for my FI setup....i took off my stock cat for a random tech HIGH FLOW.

if you've ever gutted a stock gsr cat...u'll see that it's far more restrictive than the random tech. My random tech consists of a large diameter pipe...2 bungs....and a really large-holed netting on both sides of the cat...it's basically a straight pipe that doesn't throw codes.

[Edited by TrustGs-R on 04-16-2001 at 07:56 AM]