Husqvarna Norden 901 Yoshimura Stainless RS-4 Street Series Slip-on - with Carbon end cap Akrapovic Exhaust Systems lightweight race valves for the

lightweight race valves for the GSXR1000 K5-8 models

zzr's and Suzuki gs

cores must be supplied by the customer

stress relief

Husqvarna Norden 901 Yoshimura Stainless RS-4 Street Series Slip-on - with Carbon end cap Akrapovic Exhaust Systems lightweight race valves for theThe 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