GPR Exhaust - Hyper Sonic Inox Slip-On for BMW F 700 GS - 2011 to 2015 Muffler with:dB Killer-Link Pipe The difference between the two

The difference between the two is the kit (hose and clamps) that comes with them

Billet aluminum trapezoid body

And it's plug & play

Carbon Fiber end cap

Performance pedigreeOn one hand

GPR Exhaust - Hyper Sonic Inox Slip-On for BMW F 700 GS - 2011 to 2015 Muffler with:dB Killer-Link Pipe The difference between the twoHyper Sonic Inox is part of the new generation of GPR exhausts, realized with a production process with zero environmental impact. It has dual outlets, sleeve stainless steel made and caps CNC machined in order to obtain maximum power increase and a better sound. FEATURES SOUND: Upgraded sound from stock exhaust PERFORMANCE: Upgraded performance from stock exhaust QUALITY: Italian made with high grade welding WEIGHT: Lighter than stock exhaust