sl99ls1

well i have the borla adj. cat back and i was woundering does slp loud mouth 1 make more power then it because i wanted to get slp because it sounds alot better and alot louder

joker machine

I think they would make the same hp. With the mods you have and slp your car would be super LOUD.

LebaneseShowoff

iTrader: (6)

Keep the borla, it's probably the best exhaust system for any car. especially with LT's ORY, all you're gonna hear through the loud mouth 1 is RASP, obnoxious sound and more rasp.

Coy

iTrader: (4)

Louder doesn't equal better. Keep the Borla.

Art Vandaley

iTrader: (33)

my borla with my longtubes and ory and cam... equals loud, people think its to loud lol. I dont have a plate on it (of course)

MonmouthCtyLS7

iTrader: (6)

If its the sound change u want then fine but borla is a top catback im sure there little to no power differance.

Urban Legend

iTrader: (5)

If you are running the Borla with no plate then I don't think there would be any gains with the SLP. But thats just me.

Dragkid1917

iTrader: (2)

i have the lm1 and im swapping out the resonator for a borl xr-1 racing muffler. lm1 with lt's and ory doesnt sound that great, and im a 19 yr old kid who loves loud noises and wouldnt listen to my dad, but he was right, it is very obnoxious.

fast377

iTrader: (52)

WTF? Have you ever heard a loud mouth? Loud and obnoxious. I love my borla. It may not be the best sounding to some, but certainly better than the LM. As far as flow, with the fully open plate, I would say it flows better than the LM.