Upgrade the performance and character of your Aprilia RS 660 with the Akrapovic Racing Line complete exhaust system, designed specifically for the 660 cc parallel-twin engine. This premium exhaust combines a carbon fiber outer finish with lightweight titanium and high-grade stainless steel components to deliver race-proven durability, reduced weight, and an aggressive racing appearance. The system is engineered for the Aprilia RS 660 and preserves the motorcycle’s sporty styling while adding a deeper, fuller exhaust note with pronounced parallel-twin pulsations.
The catalytic converter is positioned in the front section of the pre-muffler to help the system comply with applicable regulations. Designed as a plug-and-play replacement, the Akrapovic Racing Line exhaust installs without remapping, making it a practical performance upgrade for riders seeking improved response without extensive engine modifications. Precision construction and model-specific fitment support a clean installation on compatible Aprilia RS 660 motorcycles.
Akrapovic in-house dyno testing, comparing motorcycles equipped with the Racing Line Carbon exhaust against standard stock systems, recorded an increase of 2.4 horsepower at 11,200 rpm and a torque gain of 3.6 Nm at 4,550 rpm. These gains help produce sharper throttle response and stronger engine feel across the riding range. The exhaust is also lighter than the standard stock system, contributing to the RS 660’s agile handling. Manufacturer part number and vendor part number: S-A6R4-HAPC. Brand: Akrapovic.