Honda CBR-600, 2007-2021 Stringer Variable Length Velocity Stacks

Unleash the full potential of your Honda CBR-600 2007-2021 with Stringer Variable Length Velocity Stacks. Experience power gains, better throttle response, and increased performance on the track and open road.



Transform your Honda CBR-600 2007-2021 Fireblade into a weapon with the revolutionary Stringer Variable Length Velocity Stacks! Factory SuperBike and Stringer Race Station have joined forces to introduce the next big thing in sport bike performance technology. Get ready to revolutionize your riding experience with Factory Superbikes Stringer Variable Velocity Stacks – the go-to solution for all your power woes.

Sport bike riders know that there’s nothing worse than getting left behind on the race track or losing precious seconds on the open road. With Stringer Race Station’s Variable Velocity Stacks for Honda CBR-600 2007-2021, you can unleash the full potential of your bike and blow away the competition.


We’ve put our stacks to the test for over 2 years with the world’s top racers, including the legendary Sylvain Guintoli, a Multi FIM World Superbike Champion with Yoshimura SERT Motul. The results speak for themselves: massive power gains and better throttle response across the entire RPM range for Honda CBR-600 models.

Our Stringer Variable Length Velocity Stacks outperform all other aftermarket products, including full race homologated exhaust systems. Plus, they cost less than even the most affordable stainless steel system. It’s a win-win for any rider looking to dominate the competition and enhance their overall riding experience.

Don’t settle for less than the best. Upgrade your Honda CBR-600 2007-2021 with Stringer Race Station’s Variable Velocity Stacks and join the ranks of elite riders who demand the most from their machines. Order now and start experiencing the power and performance you deserve!

Stringer Variable Length Velocity Stacks for Honda CBR-600 are printed using 3D printer technology with carbon fuel-resistant filament and delivered as a complete replacement stack kit coupled with an electronic motor and CPU to lift the upper stacks at a set RPM. This approach allows us to create variable stacks like Yamaha, BMW, and Ducati do from the showroom and create velocity stacks that increase power and throttle response at mid and high RPM, not only giving proven gains on the dyno chart below but also providing real-world use – where, unlike on a dyno, the ram air into the airbox is properly fed, thus getting horsepower and torque gains and throttle response that cannot otherwise be achieved with bike modifications at this price point.

StringerStacks are available for the following model bikes

  • Aprilia RS660
  • GSXR1000 K9-L6 2009-2016
  • GSXR1000 L7+ 2017-2022
  • GSXR600 2011+
  • MV Agusta F3 800
  • Yamaha MT10
  • Yamaha R7
  • Yamaha R6 06-07 2CO
  • ZX10R 2011-2015
  • ZX10R 2016-2020
  • ZX10R 2021+
  • ZX636 10-22
  • Ninja 400
  • CBR1000RR 2020+
  • CBR600 2007-2021
  • Triumph 675
  • Triumph 765