well i would think the slp loud mouth would make the most HP seeing there is no mufflers

close as ya can get to a race car vroommmmm lol

str. pipes will make the most sound also .yaaaaaaaaaaaa

 

I'm sold.. I just ordered mine.. another $225 gone... ahhhhhhhhhhhhhhhhhhhhhhhhh

 

Hmm, I was just about to click on "Checkout" when i thought I may go for the MAC instead. Or possibly the Magnaflow full catback. I need more money, it would make these decisions easier

 

luv_the_stang .. said they were the best.. do you need anymore options? .. dont fight it anymore.. go for it!! WOOOOOOOOOOOOOOOOO [sm=exactly.gif]

 

I really like the magnaflow and borla sound myself. Maybe its just the sound of stainless steel that flowmaster just doesn't have. I had borla's on my lexus gs400 and sounded great, until my wife axed them ( It was her car anyway). On magnaflow's site they have a nice video clip of their exhaust an botha gt and a v6. It's definitely not as loud as SLP's but very impressive nontheless. Their exhaust, using their cat-back system with X-pipe produced a maximum of 6hp gain on an '05 GT. I think they have link to see the install and dyno results done by a magazine. Good Luck. Let us all know what you decide. If you could post a before and after video clip it would be awesome.