Daniel60

I just had the Mac Prochamber installed with the stock cats and actually feel a power difference and now I'm debating on purchasing the Mac shorty headers. Will the sound change and will I get some extra horsepower? How inexpensive is the install? Is it cheaper than the long tube headers. I wouldn't mind trying those but I like to stay street legal. Anyone? This is my present mods now:
Mac Axlebacks with Mac Prochamber with stock cats,
C/L CAI / Brenspeed tunes
4.10 gears
Steeda Underdrive pullys

Daniel60

Wow this thread is smoking.

foolio2k4

isnt it? lol. with shorty headers you should expect to see about a 5hp increase at most. But the sound is just bad ***. Hope this helps somewhat.

deekum1627

sound will change nice but you can get LT's with cats ya know and will gain more power this way