well just ordered my magnaflow catback.......should have it this time next week......nobody has claimed my SLP loudmouth....still for sale.......coming off my car, might as well sell it 200$ gets it!

 

Is that an SLP that comes factory? I am trying to find out what kind of exhaust I have on mine.. I just bought it and the sticker in the door says "SLP Performance Exhaust" do you know what it is and how many horses it adds if any to stock SS? Or does that exhaust come stock?

 

that is a stock piece i believe, mine is an aftermarket piece i bought from SLP......the loudmouth is supposedly flows more air than the slp muffler you have on your car now....and it is much louder.....anyone else chime in, dont know if i answered his question or explained it correctly

 

The SLP exhaust was an option on the SS. It flows well, but is too quiet for some people. You may see +10 hp.

More if you do ricer math. lol