{"product_id":"akrapovic-racing-line-exhaust-system-0640474547","title":"Racing Line Exhaust System","description":"\u003cp\u003eRacing Line Exhaust System\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDesigned to optimize power and torque from the 660 cc parallel-twin powerplant\u003c\/li\u003e\n\u003cli\u003eWith the catalytic converter located in the front part of the pre-muffler, to ensure the system fully complies with the regulation, the system has a plug-and-play installation with no remapping needed\u003c\/li\u003e\n\u003cli\u003eConstructed from high-quality carbon fiber, lightweight titanium, and high-grade stainless steel, the system has been created using race-proven materials\u003c\/li\u003e\n\u003cli\u003eDesigned to emphasize the racing look of the machine, the system is 0.4 kg lighter than standard stock\u003c\/li\u003e\n\u003cli\u003eTesting on the Akrapovic in-house dyno, in back-to-back runs of bikes equipped with a Racing Line (Carbon) exhaust and standard stock exhaust system, recorded an increase of 2.4 hp at 11,200 rpm and a gain of 3.6 Nm of torque at 4,550 rpm, which gives the rider a pronounced throttle response\u003c\/li\u003e\n\u003cli\u003eIts deep, full, and sporty sound, with its throbbing parallel-twin pulsations, offers the feeling of riding a bigger capacity bike, making the Akrapovic Racing Line (Carbon) for the Aprilia RS 660 the ideal exhaust for this middleweight sports bike\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment and application details\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eS-A6R4-HAPC: Racing Line Complete Exhaust - Carbon Fiber\u003c\/li\u003e\u003c\/ul\u003e","brand":"AKRAPOVIC","offers":[{"title":"Racing Line Complete Exhaust - Carbon Fiber (S-A6R4-HAPC)","offer_id":54478563868990,"sku":"S-A6R4-HAPC","price":2474.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/twistiesmotorsports.com\/products\/akrapovic-racing-line-exhaust-system-0640474547","provider":"TWISTIES MOTORSPORTS ","version":"1.0","type":"link"}