Not wearing pants.
07-08 Yamaha R1 Exhaust with A&R race baffles
OEM R1 exhaust cans with the A&R race baffles installed. Aftermarket sound and performance without the heatscore looks. Very clean install done by yours truly using Vance and Hines packing. Less than 2000Km's on them. Very, very loud and deep, similar to a Two Brothers setup but without the dorky Tampon-shaped cannon. Baffle kit is $130US, OEM cans run about $80, plus the couple hours it took to install them.
Sound clips of them installed on A&R's site: