Randi's 2009 Yamaha V Max 4 into 1 exhaust for $60.00 and some time...
2009 Yamaha V Max with the CAT totally empty. A small amount of packing installed to give a more deep sound, but totally free flowing! 3" Diameter exit pipe which is a true 4 into 1 system. Just a winter project for the fun. Total cost to retro fit was under $60.00 US.