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Engine runs cooler
lightweight race valves for the GSXR1000 K5-8 models
1230 forged high compression big bore kit for the 1135cc GSX1100 efe
1991 FLTCU Tour Glide Ultra Classic 1989
Husqvarna Norden 901 Yoshimura Stainless RS-4 Street Series Slip-on - with Carbon end cap Akrapovic Exhaust Systems Engine runs coolerThe work that went into developing the RS 4 silencer has paid big dividends in Off road racing, winning multiple Supercross and Motocross titles since it's inception. The current generation RS 4 is based on that research and development, and the result is a unique design that Provides an unrivalled combination of power and quiet exhaust tone. Pentagonal Shaped sleeve Front silencer end cap functions as a polyresonant chamber which helps reduce noise
