Akrapovic Slip-On/Bolt-on Mufflers- Yamaha R1 (2007-2008)
PERFORMANCE
Measurements of the Akrapovic SLIP-ON system
Power & Torque:
Measurements for both options of the exhaust were prepared. There is a minimal difference between the two options. Both exhaust options obtain a somewhat better result in thelower and particularly in the middle range of rotation. Despite the initial level of tuning, the systemcan substantially upgrade the serial release of power from the engine. At 12500 rpm, we measured168,7 HP at the back wheel (both options). The systems do not differ much in terms of torque either.The upgrade of a serial torque is nicely evident particularly between 3200 rpm and 6500 rpm, inwhich range the motor gains the most.
CONFIGURATION
We offer two options of the Akrapovic SLIP-ON exhaust system for Yamaha R1: the standard Slip-On and the SP Series Slip-On. In both cases the system is composed of two mufflers, the difference being only the used materials and the design. Slip-On has mufflers (outer sleeve) made from titanium or carbon, the SP series only from titanium. In both cases, the mufflers are attached beneath the seat of the motorcycle by carbon clamps. Link pipes are made from titanium (SP series from stainless steel), cylindrical and welded to the mufflers. The joining of the link pipes with thestock header assembly was executed with a sleeve joint, the strength of the joint is provided by ametal clamp. The system does not retain the stock catalytic converter of exhaust gases since it is replaced by the optional Y link pipe. The following systems are available in this configuration: Slip-On open,Slip-On Street Legal, Slip-On SP series open, Slip-On SP series homologated