The only cost for me was the tips for $60. I'll take a shot from below soon. It's actually really ghetto if you look at it, but it's the only way it could be done. There isn't a muffler because there isn't any room for it. The tube makes a 90 degree turn towards the frame right after the cat, and goes underneath the frame. It ten goes straight down the frame and is capped off at the end. Two holes are drilled in the side of the tube and the tips are attached. Ground clearance is a ***** but I'll have to live with it.