


These products are special order and intended for closed-course, off-road competition use only. Use of this product for any other purpose is strictly prohibited.
These are made to order unless we show inventory, please allow 1-2 weeks for delivery.
StringerStacks Electronic Variable Veloxity Stacks
StringerStacks Variable Length Velocity Stacks offer a huge performance gain and improved throttle response over stock velocity stacks (or bellmouths as they are also called) that cannot be gained from the installation of any other aftermarket products.
These electronic variable-length velocity stacks transform the bikes we have fitted them to. Our track testers have not wanted to take them back off their bikes!
StringerStacks Variable Length Velocity Stacks are printed using 3D printer technology using a carbon fuel resistant filament and they are 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, Ducati do from the showroom and allows us to 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 this doesn’t tell the whole story, in 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 Variable Length Velocity Stacks are a DIY plug and play installation, Stringer Stacks come complete and ready to install, if you have retained your smog/AIS/PAIR valve system then you should select the airbox installation kit, this comprises a grey rubber bung and a hole cutter to feed the electronics from the CPU to the stacks, customers who have removed the smog/AIS/PAIR system can run the cables through that bunghole.
If your road racing or Roll racing you are not going to find a better set of stacks out there! leave your competition behind!
| SKU: | SSS17G1K |
|---|
With the protective packaging, ready-to-paint finish, and the Great Fitment this Fairing Kit from Armour Bodies is a must. If you choose the cheaper route with other brands, you will pay for it in some form of fashion.
Excellent product and service
Great quality very good customer service!
Customer service was amazing. Part was reasonably priced. Shipping was quick and the part itself is excellent
Good quality. Great communication. Fast shipping. Thank you!
Easy to install great feedback. Quality built!
Exactly what I needed. Thanks
Like the tape very much, just would like the tape to be longer in length.
Awsome Suit!. Top notch quality, one of the best suits that I've own by far, true to size & all the paddings where it should be!., very comfortable even with a tech air 5 plasma in it. I'd definitely recommend!! HHR customers service was also very awesome. Looking forward to more purchases in the near future..
These guys were great to work with, responded fast, shipped item quickly and I will 100% be ordering more stuff with them in the near future!
Great customer service and communication
Worth the money! Makes it easier to hit top speed than regular standard throttle tube! I have a 2011 and 2025 S1K and the Alpha throttle feels almost similar to the new 2025 quick throttle.
Thanks for subscribing!
This email has been registered!