I have a set of titanium Harris low-mount slip ons for the sp2 and a set of carbon D&D mid-mount slip ons for an sp1. The harris pipes have a small dent in the left side can, and the lower mounting bracket is broken. (easy fix if you know someone who welds titanium). Other than that they are in good shape. The D&D's have a dent in the mid-pipe on the left side and the outer carbon case is cracked. I was told you can order a new carbon case from D&D for less than 50 bucks. Both exhaust are fully functional, and will work perfectly on a bike the way they are. I have ran the Harris pipes for 5k miles and not had any problems from the broken bracket. I would like to trade these for a set of carbon cans that fit an sp2. Brand doesn't really matter at this point and time. Cash price is $600.00 for the Harris and $300.00 for the D&D.