Description:
Spark Exhaust Yamaha R9 "Grid-O" Full Exhaust System. Constructed in 70mm with a titanium silencer, stainless mid-pipe and stainless racing header. Spark R&D has been working extensively on the Japanese motorcycle from Yamaha offering the same technology used by FIM Approved WSSP600 version. The result is an engineering masterpiece that combines lightness and power with a weight reduction of 49% compared to the original. This system guarantees a significant increase in torque across the entire power delivery range, transforming every curve into pure adrenaline. Includes carbon fiber heel guard and race bracket to subframe (mounts to passenger peg or passenger peg delete for racing). Ultra lightweight approximately 3.6kg (49% lighter than stock). Dyno Tested for maximum horsepower increase over stock. Racing Version for Maximum Performance (70mm). For perfect performance, throttle response and durability, ECU remapping is recommended. Handcrafted in Italy. *This kit works with the OEM swingarm and includes two (2) O2 bung holes M12+M18 on the 3>1.