Spark Exhaust Technology Yamaha MT-07 / FZ-07 "Grid-O" Full Exhaust System (2014+). Constructed with a titanium silencer, stainless mid-pipe, and stainless racing header. Handcrafted in Italy. Ultra lightweight approximately 2.8kg. Dyno Tested for maximum horsepower increase over stock, 103 db @ 5,000rpm). A removeable DB Killer is included. Non-Homologated Racing Version for Maximum Performance. For perfect performance, throttle response and durability, ECU remapping is recommended.