Ok, I want to replace my FULL exhaust. Meaning _everything_ except the main catalytic converter. Now my question is... how many peices is this?

Here's the parts I _think_ I need to swap, tell me if I am wrong about any of them, or if I am missing a peice.

1) Header
2) Downpipe?
3) Straight/Test Pipe? (The part that deletes the first cat converter)
4) Catback Exhaust Kit

Now am I missing anything? Is there a tube or pipe (not including the main Cat) that I am missing?

Also, if I get headers and a downpipe, do I need a straight/test pipe anymore? Or does the down-pipe take care of the straight pipe section?

Anyone who actually KNOWS what they're talking about, and helps me out, would be much appreciated. Thanks in advance for any advice.

- Jason

P.S. My car is a 2002 Lancer OZ-Rally , in case you didn't want to look left.

 

3 parts if you want to keep the main cat...

1) header
2) downpipe
3) exhaust

 

straight pipe just mean your running nothing but pipe...no cats no muffler..basically like a free flow exhaust....

the part that deletes the first cat is the header

hope that helped

im not a hobie rhyzin or boe but i know a little

 

yeah, you wouldnt want to swap out your stock headers if you want to keep the 1st cat. you could go w/ a new header and cat. back system... putting all that junk back on isnt too much work.

 

Header removes the 1st cat. Downpipe removes the atrophied stock downpipe. Testpipe/highflow cat removes the 2nd cat. Catback piping removes the stock exhaust piping.

I have straight piping running right now. RPW header, RPW downpipe, custom testpipe, JIC-Magic catback. The only piping that isn't completely straight-through is the resonator and muffler on my catback.

 

what sicze piping are the rpw pipes ghost?

 

Not sure what size the runners are on the header, but the downpipe is 2.5".

 

awesome, didnt know they had these available. the site doesnt really list the products and prices, can you help me out?

 

We gotta get this thread back on topic.
I have the Race Design headers and picked em up from ozbots two years ago for $300.

 

thanks for the info. back on topic? eh it is sort of on topic plus we already answered his question.

 

if you wanted to go Header/catback and keep the second cat, couldnt u just go high flow cat? like magnaflows?

 

Yeah, but you're not keeping the second cat if you replace it with anything, including a highflow cat.

 

Which one is better? Intalling a whole new exhaust system or just welding on a muffler? After all an exhaust system is nothing but a long pipe and muffler!!

 

def a whole new exhuast system, just a muffler doesnt increase power at all. its a long pipe that has a large diameter, amking it less restrictive.

 

You'll definitely get more power from a full exhaust. Welding on a muffler will help with the exhaust tone, but not much if anything at all in the means of power gains. And like pgmike said, the gains come from increasing the diameter from the stock piping to something larger (2.25" or 2.5").