TEST PIPE OR STRIAGHT PIPE, ne one have this on there car Options

[azn87]

does ne have a test pipe or straight pipe on there car as everyday driving? does it really give some power? how loud does it make the car? and where did u guys get it

[airfron]

I have been pulled over in Huntington Beach and had the cops pull out the mirror on a stick thingy and look under my car. So, it does happen.

I have a gutted catalytic converter, but when he looked he could still see that there was a cat. so he didn't cite me for any smog mods even though my header is illegal too. All I got was a ticket for no front plate.

I do know plenty of people who have never had a problem though. imo a straight pipe back is the best option.

[Ronan]

But I remember reading somewhere that for our cars we actually lost power or something due to not running a cat. Don't ask me where or how,

They loose power from lack of back pressure. NA engines need a certain amount of back pressure to work properly. Turbo charged cars dont need exhaust back pressure because the turbo itself creates back pressure.

I have a gutted catalytic converter,

Gutted cats aren't much of a help. the pipe has to be the same diameter as the system to get the best result and keep the gases flowing at the right speed.





I passed my NCT (national car test, every 2 years) today so ill be ordering a decat asap. i'll keep the cat for swapping it back for the next test. You can loose some low end torque if your exhaust system is too free flow but you make it up at the top end

This post has been edited by Ronan: Jun 15, 2008 - 4:53 PM