On RRM test pipe on their website desciption it says to keep stock cat on for normal and highway use is there a reason for that or are they just being extra carefull.

 

It's illegal for street use. Just like tampering with any functioning stock catalytic converter is illegal.

 

unless you live in an area that doesn't have emissions testing right??

 

no,

the only time you can mess with cats is when your stock ones are broken.

and you have to replace a cat with a car, it can be high flow though.


i use a test pipe though

 

its supposed to be for track use only, i had mine on for like 10 months before i got rid of the car.

 

So bottom line whats the preferred high fow, cat, or test pipe??

 

If you don't care about polluting, get a test. If you care or just want to be legal, get a high-flow. From what I hear, there are few performance differences. High-flow might be a touch better because it keeps some backpressure. Basically it's up to you; what do you prefer?

 

I like my test pipe but I'm always concerned about damage to engine and shtuff like that. I plan to get a header and axel back exhaust from mufflertech.com just hoping everything will work out. anyone think compression is going to be a problem?? :mits:

 

compression, exhaust ?


compression comes from piston movement.

the compression ratio indicates how much the air/fuel misture is squeezed during the compression stroke.

you can not damage the engine from exhaust, unless you are running super small or bent out of round pipes


but i'll give you a on using the word engine, and not motor.

a motor is electrical, like the wiper motor

most dumbass's say motor and all i want to ask is, which motor? the wiper motor?