Spark Exhaust Technology Yamaha MT-09 / FZ-09, Tracer 900 and XSR 900 "Grid-O" Full Exhaust System with Euro4 box (2014-2020). Constructed with a titanium silencer, stainless mid-pipe, heat shield and and stainless racing header. The Spark Exhaust system does not remove the catalyst. Handcrafted in Italy. Ultra lightweight approximately 5.3kg. Dyno Tested for maximum horsepower increase over stock, 93.5db @ 5,000rpm). For perfect performance, throttle response and durability, ECU remapping is recommended.