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Yoshimura R&D of America is a leading manufacturer of racing sports exhausts for motorbikes based in Chino, California. Founded in 1973 as the American subsidiary of the Japanese company Yoshimura Japan.
The history of Yoshimura R&D of America began with an engineer named Gene Romero, who worked as a test rider for the Japanese company and saw an opportunity to expand Yoshimura's presence in the United States. With the help of Yoshimura Japan's founder, Gene opened a subsidiary in the US to produce and sell sports exhausts for American motorbikes.
Over the years, Yoshimura R&D of America has established itself as a leading manufacturer of motorbike sports exhausts in the US, becoming the leading supplier of exhausts for AMA Superbike and AMA Motocross competition. The company also began working with some of the leading American motorbike manufacturers, such as Honda, Suzuki and Yamaha, to develop custom exhausts for their models.
In addition to its racing successes, Yoshimura R&D of America has distinguished itself through the quality and durability of its products, which have been used successfully by motorcyclists of all levels, from beginners to professionals.
Yoshimura USA products are for racing/track use only: not homologated for road use in Italy/EU.
We advise all our customers to contact us in advance to be informed about production and delivery times for Yoshimura sports exhausts.
Product photos, if available, are shown within each individual product sheet.
For any additional information or doubts about compatibility with your motorbike, please do not hesitate to contact us.
There are 251 products.
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Yoshimura Full Exhaust System
13720AP520
Yamaha R7 / Yamaha MT 07
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
13992AP521
Yamaha MT 09 / Yamaha XSR 900
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
274500S320
Triumph TF450 2025
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
272500S320
Triumph TF250-X
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
3115007350
Suzuki Ltr 450 2006/2010
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
1160000221
Suzuki Gsx-r 600 2011 - 2018 / Suzuki Gsx-r 750 2011 - 2018
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
116600D320
Suzuki Dr-z 400 S SM
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
116610S520
Suzuki DR-Z4S / DR-Z4SM 2025-
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
265000S320
Ktm 500 XW-F 2024 / Husqvarna FE 501W 2024/2025
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
264631S720
Ktm SXF 250 350 450 505 520 525 / Husqvarna FC 450
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
14120AB251
Kawasaki Z 125 PRO MINI NAKED
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
14730AP520
Kawasaki NINJA 500/SE / Kawasaki Z 500/SE / Kawasaki Ninja 400
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
244720S320
Kawasaki Kx 450 X 2021/2023
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
244730S520
Kawasaki Kx 450 X 2024/2026
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
242940S320
Kawasaki KX 250 F 2021/2023
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
2430522
Kawasaki KLX 110 / 110 L 2003/2025 / Suzuki Dr-z 110 2002/2009
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
2276513
Honda TRX 450
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
1290072
Honda Zoomer 50 2003/2013
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
12109AB250
Honda Navi 2022-2025
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
12130A5500
Honda Monkey
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
12122AR520
Honda MSX 125 / GROM 125
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
224500D320
Honda CRF450X 19-25
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
225861S720
Honda CRF 450 R 2022-
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
123410D520
Honda CRF 300 L 2021-
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
Yoshimura Full Exhaust System
228461S720
Honda CRF 250 R
NO E1/E2/E3/E4 - Racing product, not homologated for road use in Italy/EU.
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