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Free standard shipping on orders over $149
We ship to the lower 48 United States. Orders over $149 ship free; a flat rate applies under $149. Estimated delivery dates are shown at checkout based on item availability and the shipping option you choose.
We text or call to confirm sizing & fitment before we ship.
Every Factory SuperBike order includes a free expert check from real riders. Before we ship helmets and gear, we text or call to confirm your size and fit; for parts, we verify fitment to your bike. This is why we don't have to guess and you don't have to gamble.
Helmet & gear orders: reply to our text to confirm and your order ships, typically same day. No reply within 48 hours and we'll call you. Questions now? Call or text (503) 832-7336.
Stringer Variable Velocity Stacks | Yamaha R6 | 2006-2007 | Ultimate Performance
Transform your Yamaha R6 (2006-2007) into a high-performance machine with our Stringer Variable Velocity Stacks. Designed for riders who demand excellence, these stacks deliver significant power gains and enhanced acceleration, making your R6 a force to be reckoned with on both the track and the street.
Factory SuperBike and Stringer Race Station have joined forces to bring you these Stringer Variable Velocity Stacks, a revolutionary advancement in sport bike performance technology. With consistent power gains across the entire RPM range, these stacks outclass traditional static stacks, giving you the competitive edge you need.
Key Features:
Riders and race teams have reported remarkable improvements with these stacks, making them an essential upgrade for any serious rider. No other modification at this price point offers such substantial boosts in power and throttle response.
Custom 3D Printed Item Policy:
Equip your Yamaha R6 (2006-2007) with our Stringer Variable Velocity Stacks and experience a new level of performance. It’s not just an upgrade—it’s a game-changer.
© 2023 Factory SuperBike
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