|
I am not sure if you are wanting it to be louder or stay quite (and still add performance).....
If you are looking to make it louder (and add hp)...anything that 'frees up' the exhaust flow will make it louder (and in most cases give you performance benefits). Replace the header. Run custom piping (about 2.25" or 2.5" for N/A), that way you can REMOVE the resonator (which is included in most 'cat-back' systems). Buy a reputable free flowing muffler (I like DragunFire...loud as hell and not to raspy). Removing the cat. will make it a bit louder but more of a raspy tone.
If you are looking to keep it quite (good luck)...you will never get the performance that you could get if you just let it get loud.(don't get me wrong you will get some gains). Try just replacing the muffler with something like DynoMax or a generic 'turbo' muffler.
|