This Akrapovic exhaust for your Yamaha YZF-R1 2009 is sporty and lightweight. Akrapovic's SLIP-ON systems offer a great balance between price and performance and represent the first step in the exhaust system tuning process.
The Akrapovic exhaust not only changes the motorbikes performance, the change will be also visual as Akrapovic's HEXAGONAL mufflers perfectly fit the exterior line of the R1 and add a clean racing image.
The muffler outer sleeve and end cap are made of high quality carbon-fiber, which gives a special hi-tech touch to the Akrapovic SLIP-ON system.
You get two carbon fibre cans, all fittings and instructions, two carbon fibre clamps (hangers) and two great looking heat shields!
Measurements of the Akrapovic SLIP-ON system on the YAMAHA YZF R1 (without muffler insert):
Max. increased power between the Akrapovic and the stock system is 2.4 HP at 12430 rpm. Besides this, the torque is substantially higher in a lower rpm area at 3000 rpm and from middle to high rpm area.
Power & Torque: the exhaust system modification with the SLIP-ON OPEN system results in a major boost in performance, delivering a massive 163.9 HP at 12410 rpm on back wheel.
But the increased power isn’t available just at the top of the range; the system shows its quality already from 5500 rpm up through entire rpm range.

For even more power combine with our Akrapovic De-Cat Y Link Pipe.
Removing the muffler insert is not street legal.
| Type | Slip On |
| Style | Hexagonal |
| Materials | Carbon Fibre |
| Legal | Street Legal |