Spark Exhaust Ducati Panigale V2 S/R Streetfighter V2 "Dyno Red" Slip-On Exhaust. The ¾ kit is constructed with a stainless steel racing pre-silencer box with tig-welding fittings into a Dyno silencer. The silencer box replaces the original bulky catalyst and gives a dark and deep sound without being overly loud. Compatible with original fairings. Ultra lightweight 5.3 kg. (40% lighter than stock), dyno tested for maximum horsepower increase over stock with a large increase in torque throughout the acceleration curve. Sound 105 db @ 5,375 rpm. Spark Exhausts are handcrafted in Italy. Non-Homologated Racing Version for Maximum Performance. For perfect performance, throttle response and durability, ECU remapping is required. *Requires trimming of radiator fan shroud or removal for proper installation.