I have just replaced my factory muffler with a performance muffler. Did I gain any HP or did I loose? Of all the different brand names of performance mufflers, are any of them really any different? Does my car have a sound resinater? Its really quiet.

 

You might have free'd up 1 or 2 horse depending on the muffler.

 

Actually Rob, he hasnt gained anything

 

Right, he's free'd up a bit.

 

if it was a straight through desin you might of if any, due to no restrictions

 

Then the ECU would tune that gain out after a tank of gas.

 

So any one know of an evo exhaust that would fit an oz rally?

 

It wont.

 

Check the dates^^^

 

wow alright that sucks. wat ever. so this is the dumbest possible question considering i'm new to mitsubishi i've always been a honda person. So i was wondering is there a difference between the oz rally and the ralliant?