They both require welding right?
Yeah, its more or less I'd like to not have to worry about relocating or modifying my gas tank and messing around modifying every single bracket and piece in the XV kit to make it work because my springs have been relocated in 3 inches into the frame rails (MP kit). I know there was a guy on here that modified the kit because he had his springs mounts moved in and it seemed like a really big deal.
The RMS street lynx kit on the other hand would require much less fabrication and modification, the only welding is the top strut mount area and the kit works with the MP spring relocation kit so I dont have to try and figure out all new mounting spots myself.