Kawasaki KLR650 S1R Slip-On System (2014-2016)

Kawasaki KLR650 S1R Slip-On System (2014-2016)

Kawasaki KLR650 S1R Slip-On System

Like all of our products, our KLR650 slip-on exhaust system was developed to surpass what is offered on the market today. Engineered to compliment the quality and performance of Kawasaki’s products, this handcrafted system delivers unparalleled sound and performance for the ultimate race experience.

Color / Style Options

*For color / style reference only. Length and orientation of actual pipe as pictured on bike.

S1R Standard Carbon

S1R Black Series Aluminum

S1R Black Series Carbon 

Performance Specs


Peak HP

Peak Torque

Max HP Gain

Max Torque Gain


dB Level


37.27 hp

33.13 ft-lbs



12 lbs

82 dB @ 2000 rpm


40.57 hp

36.43 ft-lbs

4.33 hp @ 7000 rpm

3.6 ft-lbs @ 4500 rpm

5.5 lbs

95 dB @ 2000 rpm


+3.3 hp

+3.3 ft-lbs



-6.5 lbs

+13 dB

We take performance seriously.

It its crucial that each system delivers the sound and performance our heritage claims. Extensive R&D is scheduled from the bends, the sound, the dyno, and the track. Every part of the bikes range is analyzed to respectively create the best horsepower, torque, and sound. The extensive process applies to both full and slip-on platforms. Have confidence that you will receive absolute top level out of box performance and power and be competitive among motorcycle enthusiast. The track and power is our focus for exhaust systems, but this does not sacrifice the heritage and aesthetics that Two Brothers Racing is known for. Starting with the art of crafted bends and welds, through selected high-end outer and inner materials, and firing out of our unique magnesium end caps, we are the aftermarket leader of function and form in one exhaust system.

Increase horsepower, gain torque, improve sound, and drop weight.