Graves motorsports exhaust insert base 49mm Yamaha Racing Flexfit® Hat Supermoto-specific features include the replaceable

Supermoto-specific features include the replaceable nylon slider

The RPT slip-ons make use of all of the high-tech features of Cobra's regular 3" slip-on mufflers

83 db at Idle / 96

Merged the 1-7/8" head pipes into a large 2-1/4" collector that steps up to a 2-1/2" perforated core Core wrapped in stainless steel screen then encloded in fiberglass pillow Collector covered by large one-piece heat shield that is held in place with two clamps and stamped Cobra logo 4" muffler body capped with a 4" machined aluminum dual-cut tip that features small alluvial flutes Body arrives pre-set in slight upward position Works wtih stock or extended bags

Fitment: Yamaha R1 R1M R1S 2015-2023 (Note 2020 + R1 riders can call in the orders to have front 02 sensors added for an extra charge if your tuning cannot remove the 02 sensors)

Graves motorsports exhaust insert base 49mm Yamaha Racing Flexfit® Hat Supermoto-specific features include the replaceableGraves Motorsports exhaust insert base 49mm. This sound limiting insert is designed to bolt into Graves exhaust systems silencers that have a 49mm (Pre drilled exit cap). See motorcycle listings for sound ratings with inserts installed. NOTE: Sold as 1 (one) purchase each. You will need two to complete a bike with dual exhaust canisters. Direct fit for exhausts listed below (some come with the insert already as listed) EXK 13ZX14 CBSC (REQUIRES 2) EXK