The Akrapovic Carbon Silencer Evolution 4-1 Complete Evolution Titanium System S-A10E8-RC is designed for riders seeking the optimal performance from their bike. This system offers a substantial weight drop when compared to the factory parts, leading to improved engine output. Engineered with the utmost quality standards and crafted from racing-grade titanium and carbon fibre, the Akrapovic Carbon Silencer Evolution 4-1 Complete Evolution Titanium System S-A10E8-RC delivers a powerful, race-inspired sound. Installation is straightforward; a comprehensive set of instructions and complete fitment are included in the kit. To install, the passenger footrest must be removed. To ensure optimal performance, throttle response, and durability, Akrapovic recommends obtaining specially developed Dynojet mapping, which is available at http://www.powercommander.com/powercommander. This product does not comply with emission regulations and is thus designed exclusively for use on closed-course circuits and not for public roads. PLEASE NOTE: When installing the evolution system on 2019 model year, the check engine light may appear. PLEASE NOTE: This exhaust is ordered on demand and lead times can vary. Please contact us before purchasing for an up-to-date availability timescale. This is a special order item and is not returnable. Compatibility This system will fit on the following motorcycle models: Aprilia RSV4 (1000cc) 2015-2016 Aprilia RSV4 (1000cc) 2017-2020 Aprilia RSV4 1100 Factory 2019-2020 Aprilia Tuono V4 1100 RR / Factory 2017-2020 Aprilia Tuono V4 R 1100 2017-2019 Performance Data Unit Stock Akrapovic Max gain Max. power kW 140.8 / 13400 rpm 145.8 / 13500 rpm + 5.2 / 13500 rpm HP (m) 191.5 / 13400 rpm 198.2 / 13500 rpm + 7.1 / 13500 rpm HP (i) 188.9 / 13400 rpm 195.5 / 13500 rpm + 7 / 13500 rpm Max. torque Nm 110.3 / 11250 rpm 113.2 / 11130 rpm + 3 / 10800 rpm lb-ft 81.4 / 11250 rpm 83.5 / 11130 rpm + 2.2 / 10800 rpm Weight kg 7.9 4.7 - 3.2 lb 17.4 10.4 - 7 % - 40.5 Product noise dB 100 / 6500 rpm 102 / 6500 rpm 2 Inst. time min 210