I have an 08 1500 and Ive got stock pipes till about the back of the cab where I have a super ten series muffler with duel coming out right in front of the passenger tire it sounds nice but I don't think I'm getting the right amount of back pressure needed anyone know of the best exhaust system to provide the back pressure I need feels like the truck is holding back and I believe this to be the reason why

 

You only problem is believing in backpressure and that you think your engine/truck needs it. I have headers, no cats, MagnaFlow mufflers and runs fine.

 

I have the same set up on my 08 hemi but have them exit behind the tires I feel like I'm lost hp I think I'm going with a magnaflow

 

I have something similar in that my 3" stainless with high flow cats and SI SO large stainless muffler, exits in front of the passenger rear wheel.
I also have an electric cutout and to me, I can feel a difference in low end grunt when it's closed, to when it's fully open.
Just my butt o' meter though.

Al.