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Yoshimura

R-77 Full System Exhaust

Yoshimura R-77 Full System Exhaust

Yoshimura R-77 Full System Exhaust

Yoshimura Refurbishing Process

Yoshimura R-77 Full System Exhaust

Rating: 4.7 out of 5 stars
18 Reviews
21 Questions
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WARNING: California Proposition 65

Product Details
The popular R-77 offers outstanding performance, thanks to being developed in the heat of competition. It features a trapezoidal design, which allows a large volume of packing material and in turn delivers top performance. The R-77 muffler's front cap is MIG-welded, while the end cap is riveted using high-end 304-L polished stainless steel rivets and bands.
- Superbike technology and styling.
- Trapezoidal-shaped sleeve.
- Large volume of packing material.
- Straight baffle for ample flow.
- Innovative end-cap.
- Removable low-volume Insert.
- Stainless steel header and tail-pipe.
Works Finish:
Yoshimura Works Finish takes on a unique coloring after it goes through a heat cycle on the motorcycle that looks much like those titanium works components our factory racers use.
- Contemporary satin / matte finish.
- Uniform heat coloration.
- Increased fatigue strength.
- Increased scratch and stain resistance.
Yoshimura Exhaust Series Descriptions:
Race Series: If you're looking for that competitive edge, look no further than Yoshimura's Race Series. These exhaust systems are designed with nothing but power in mind. Each Race Series system is developed in accordance with noise compliance regulations imposed by most racing sanctioning bodies worldwide. FOR CLOSED COURSE COMPETITION ONLY; NOT INTENDED FOR STREET USE.
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# Part Numbers

Product Variant	Manufacturer Part #
Race / Stainless Steel / Carbon Fiber / Carbon Fiber	12310AJ220, 133200J220, 12651AJ220, 1118100220, 122500J220, 1256100220, 147010J220, 1399000221, 1160000221, 1321002
Race / Stainless Steel / Carbon Fiber / Carbon Fiber - p/n 1414100220	1414100220
Race / Stainless Steel / Carbon Fiber / Carbon Fiber - p/n 1426002	1426002
Race / Stainless Steel / Carbon Fiber / Carbon Fiber / Works Finish	12552A0220, 13700AJ220, 13990A0220
Race / Stainless Steel / Stainless Steel / Carbon Fiber	1399000521, 1160000521, 1256100520, 1426005, 12651AJ520, 133200J520, 122500J520, 12310AJ520, 1118100520
Race / Stainless Steel / Stainless Steel / Carbon Fiber / Works Finish	13700AJ520, 12552A0520
Race / Stainless Steel With Carbon Fiber End Cap	15350AJ521

WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. For more information, go to www.P65Warnings.ca.gov.

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