Two Brothers Racing Kawasaki ER6N 2009-11 S1R Slip On Exhaust
Aftermarket Exhausts Are For Race Use Only
- Aerospace high-temp carbon fiber
- Teflon coated magnesium end-cap
- Stamped spring-fit inlet
- Aluminum CNC Machined outlet
- Rubber-lined styled mount
- Spiral-wound perforated core
- Accepts P-Series sound reduction tips
- Installation hardware included
- Installation instructions included
- Installation tutorial
Our Two Cents
The all-new S1R exhaust is the latest state-of-the-art product from Two Brothers Racing. The new system features carbon fiber highlighted by a natural finished Aluminum outlet and stamped spring-mounted inlet for ultimate durability.
S1R Carbon Fiber:
All of Two Brothers’ carbon parts are made with a high temp aerospace grade epoxy resin. The carbon fabric is made with a 33 million modulus carbon tow then impregnated with the high temperature resin under very tight tolerances. This allows them to make sure that the fabric is impregnated with the exact resin content every time. They then place all of their products in an autoclave to cure. They cure all of their products under full vacuum and apply over a 100 psi for the cure. Using an autoclave allows them to consolidate the material and it also allows them to remove any volatiles from the material. This also includes any air that is trapped in the laminate.