I'm running a Heartthrob dual system with "stock mufflers" (actually pretty loud) ordered from Auto Accessories Garage for about $225. It's what LMC sells but with more choices, a 20% discount and free shipping. It is a 2-1/4" system with mandrel bends. Not sure if you are using it on a 3/4 ton or 1/2 ton. They have kits for both. My truck is a 3/4 ton with stock angled rams horns and an Eaton axle, and there was a problem with the right rear pipe. I had read somewhere that the kit may not fit all 3/4 tons. Heartthrob made it right by custom bending a pipe to my pattern at no charge. I used band clamps rather than the normal clamps they provided and fabricated hangers for the right side patterned after the original single exhaust left side hangers.
https://www.autoaccessoriesgarage.co...Exhaust-System