February 2 2010.

Since the launch of the revised Hayabusa in 2008 owners have been asking Yoshimura for a set of performance camshafts to further liberate horsepower and torque from its mighty 1340cc four-cylinder mill.

The wait is over, as just arrived in the UK is Yoshimura's new ST-1 camshaft set. When used in conjunction with Yoshimura's JMCA 4-2-1-2 full exhaust system, and without any fuel injection adjustment, peak horsepower with the cams fitted is 175bhp - 3bhp over the same set up with stock cams. Torque output is improved at higher rpm, also.

The addition of a race-style open exhaust plus tailored fuel mapping will obviously give considerable gains over stock.

Technical Specification:-

Description: Yoshimura GSX1300R (08 onwards) ST-1 camshaft

Part number: 211-509-0100

Intake: Lift 9.5mm/Duration 249.0°

Exhaust: Lift 8.7mm/Duration 235°

RRP: £1103.76 inc VAT (per set intake/exhaust)

Availability: End February

For more information on this or any other Yoshimura product contact 01782 569800 or visit www.phoenixnw.co.uk