RS_91

ok, does taking out ur cat and just welding a pipe on give ur car more hp?
cause it would have less restriction for air flow?

just wondering

sammysnakes

it just helps exhaust exit better. you might get 1 or 2 more hp.

rodrez.

Depends on your motor and mods. For some set ups, you may actually lose power, where as with others, you can gain some power.

SpoolinSol

I would say better off leaving it on.... depending on your setup if you remove it , it can be annoying loud...

Just my .02 cents.

KURRRRWA

It definitely helps.... Every little mod adds up.

You can hollow it, but then if you ever want it back, you gotta buy one.

You can buy a testpipe, which would help, and you can always swap your cat back on

Good luck

delslow94

test pipes can help but also hinder. you give up torque with them in the low end, and hondas need as much as they can get. hollowing out your stock cat can also hinder the flow too just due to the shape of the cat in itself causes turbulence. i say get a free flow cat like a catco and save the test pipes for all track cars.

Vspec Sol

It will only help depending on your mods and if you aren't pushing out enough power then there is a chance that it will cause a loss of horsepower. One noticable difference is going to be the loss of low end power. It will be good on the open freeway though.

RS_91

thanx for the help

slowman

iTrader: (3)

No cat here

B16A2-EM1

Most exhaust mods give minimal gains, Honda spent millions designing your exhaust system just leave it alone

stockegsix

true that.

rodrez.

They designed the exhaust system for the lowest amount of noise and pollution, performance was not a priority (except the R). Once upgrades have been done, a factory exhaust/cat will choke power.

B16A2-EM1

Like I said Most exhaust mods give minimal gains N\A that is, stock Honda exhaust systems are very efficient as it is. yes they could be better. But in most cases its good enough.