Hi, I have a 2012 Lancer sport back gts and I am trying to find out if I can use a 2.0 full exhaust system to a 2.4 motor? Now the system I have found it does install onto the factory cat, it has all bolt on 2.5 pipe lines and has a shotgun barrel muffler, it's on ebay and I believe this is a pretty cool kit and I know it should give that smooth sound and power.please let me know if this works thank you.

 

wow, i'm surprised sang and mike aren't all over this being helpful.
oh, wait, no i'm not.

anything will fit in/to anything if you have the time and money for it.


if you're talking a cat-back muffler upgrade (that's not a "full exhaust system", btw), there is no problem. 2.5" piping on a 2.4 litre motor is optimistic though. your money would be better spent on a port and polish.
...or replacing it with a faster car.

an exhaust system does not, never has, nor ever will, "give you more power"

 

I'm stand corrected. I didn't mean getting more power,just wanted a nice low and smooth tone just to come along with my cold air intake.just to have the fun out my car and to be proud of it.

 

thats a matter of back pressure, the rear muffler and tips WILL alter the sound BUT if your engine isnt providing volume of exhaust through, you will end up with it sounding like a civic with a baked bean can tailpipe.
Best bet would be to find someone who has done the same on your vehicle/motor and make sure youre happy with the sound.

 

If I can ask ?the exhaust line is 2.5 and the muffler has a twin exhaust tip that is 3 inches,would that make an unusual back pressure or would that be better for exhaust flow

 

what fuel are you running, what altitude are you at, what valve profile are you running, what pistons, what gaskets, have you had the manifolds ported, what air filter do you use, where is your intake....
Short answer, is there is no short answer, as said sounding 'good' on a little 4 cyl motor, is optimistic.