I got my truck back from the dealership a couple days ago. They installed the Roush Intercooler upgrade kit, and the Dynatech Long Tube Headers with high-flow cats. Today, I installed the Corsa cat back exhaust with dual out-the-back with twin 3.5" tips. It sounds amazing at WOT, and it's really quiet at idle. The exhaust I took off was a MagnaFlow system, and it sounded good (even better after the headers/cats install), but it doesn't sound near as good/loud as the Corsa at WOT. Definately worth it.

One thing to note, however: when you get dual out the rear, make sure all your vent lines are away from your pipes...mine were all melted, as I found out today. I'll post some pictures to my gallery when I figure out how.

 

sweet