I just wanted some quick opinions on good sounding 4" or 5" exhaust for a 450-550 hp truck. With or without twins. Do the 5" drone more? or does it depend on the brand? The Corsa system seems to have that "raspy" sound when I listen to their sound clip on website. I was interested in Borla, Silverline, even Magnaflow or MBRP.

 

mine is suprizingly quiet on the highway, the only time it gets realy loud is when i am pulling my trailer and starting out, she will wake up the niebors, running empty she sounds realy good, go to MBRP's web site, they have some short videos, turn up the bass

 

with my mbrp dual 4" and no kat. it is loud and will wake up the neighbors every day with or without a load. I set of 2 alarms on the way out of the hood every day. loud. did I say it is loud?