Exhaust Confusion

After watching the SLP video I think the stock mufflers sound better than the SLP's. I find it hard to belive that removing the stock mufflers and replacing them with metal pipes is legal but I guess it is. Anyway the SLP's don't have the mustang sound I want, all I hear is crackling and popping not a powerful sound to me. :notnice: I feel you need to have some sort of chambered exhaust to get good sound.

Anyone know of the IMCO's
 
They test 4 different shorty headers all with a Bassani X-pipe..JBA scored the highest,with FMS being second,,but they were all in 2-3hp of each other so the sound would decide it for me.The stock exhaust pull on the dyno netted 289hp and 313lbs of torque.The JBA'a netted 303hp and 325lbs of torque.Thats a 14rwhp and 12lbs of torque gain!!
 
I ordered IMCOs 2 weeks ago. They arrived damaged, and IMCO took a few days to send a new set. I refused 'em and ordered JBA axle backs. I received them the next day and I put 'em on today. They sound freekin' grrrreat! Nice growl...not too loud. I am planning to go JBA for headers and mid pipes. JMO.

Tim