Two summers ago I installed a Pypes 2.5" dual, header back system. Overall, I like the system however it was much more difficult to install than I anticipated. The over the axle tubes were not bent the same length which created a lot more fabrication to get everything to line up. I ended up cutting and sectioning the right hand tube. As for sound level the Pypes Street Pro (or what ever the heck they were called) mufflers were a bit too loud for me at crusing speed. I ended up switching to Flow Master Delta Flow's. Much mellower sound IMO and very little interior resonance. If your going to install yourself and mig weld the joints use 309L wire - much cleaner, easier weld on the 409 stainless tubing than mild steel wire.
