Akrapovic Slip-On Line Titanium Mufflers for Yamaha YZF R1 (04-06)

For the 2004 Yamaha R1 we present a basic version of the Akrapovic SLIP-ON exhaust system with two mufflers and two link pipes. We have also developed an extended version with an optional Y- connecting tube. The basic Akrapovic SLIP-ON system allows the use of the stock catalytic converter. The version with the optional Y- connecting tube extends past the point where the catalytic converter is located, so that the catalytic converter is removed. There is no major difference in performance between the two systems. However, they both outperform the stock system in both power and torque. The system is intended for riders who do not wish to make major exhaust system modifications.

• Power

  +4.0HPat 8400 rpm

• Weight

  -0.92kg

PERFORMANCE

Measurements of the Akrapovic SLIP-ON system on the YAMAHA YZF R1

Power: performance measurements were made on both systems. The difference is minimal, with the advantage going to the option with the optional Y-connecting tube, which is slightly better in the middle of the rpm range. There is also a slight difference at the top end, but this does not affect the riding characteristics. Despite being only a first-stage tuning component, the system adds quite a bit of power to the stock engine figures. The standard option without the Y-connecting tube puts out 159.6 HP at 12800 rpm. The option with the optional Y-connecting tube was measured at 159.4 HP at 12700 rpm.

Torque: the torque curves of the two options are also very similar. There is a significant increase over the stock torque curve, especially above 6000 rpm.

CONFIGURATION

The basic configuration of the Akrapovic SLIP-ON system for the Yamaha R1 is as follows: the system includes two mufflers, either titanium or carbon-fiber, attached under the seat with carbon-fiber clamps. The cylindrical link pipes are made of titanium and are welded to the mufflers. The connections of the link pipes to the stock header assembly are free-floating joints secured with metal clamps. The system uses the stock catalytic converter.

The Y-connecting tube can be ordered as an option, which expands the basic configuration as follows: The basic system continues with the optional Y- connecting tube, which is conical and made of stainless steel. The Akrapovic Y-connecting tube replaces the stock Y- connecting tube where the catalytic converter is located. The catalytic converter cannot be mounted in the Akrapovic Y- connecting tube. The link pipes and the Y-connecting tube are attached with free-floating joints secured with metal tensioning springs, as is the joint between the Y-connecting tube and the collector.

** Technical specifications of Akrapovic exhaust systems and related products subject to change without notice

Below you may see the diagram data dislaying the difference in Engine Torque and WH Power between stock and Slip-On Line Titanium Mufflers for Yamaha YZF R1 (04-06)