Onyx is chemical resistant and can tolerate temperatures of nearly 300*F! These stacks are of course not highway or road legal and may affect your warranty and or emissions requirement. The production stacks are produced with the highest quality Onyx + Carbon Fiber reinforcement on state of the art MarkForged 3D machines in house. The stacks do NOT require remapping, but we have found even better gains with proper mapping and this really smooths out the "hit" many riders feel when these V-tec engines in the 6,000-8,000 rpm range and the V-tec is in effect. Then, when you are wanting to play in the twisties, pass that buddy of yours with ease! These stacks design allow the rider to use ALL of the revs Honda put in the great V4 engine to redline! ![]() These stacks allow you to keep the great riding characteristics of the V4 engine and also get a bit deeper growl upon full throttle that everyone loves. The one thing we didn't want to do was lose any power! After several versions tested on our software and on the dyno, we finally found the perfect set up for keeping the oem power the same as stock below 9,000 rpm and yet were able to get up over 5 rwhp towards redline! Actually +10 rwhp on redline as the stock bike simply falls on its face above 9,500 rpm. We spent countless hours on the stack design for these engines as VFR owners are known to be very picky and have high expectations. However, in typical Honda form, it is very choked up! They do this for many reasons, mainly noise compliance. We have many VFR800 customers and the #1 performance comment has always been "I wish she had more top end!" The VFR800 is one of the best all around bikes. If you are interested in a motorcycle fitment that we do not have listed please get in touch as we are always interested in looking at new models to prototype the variable and static systems for.The EDR Performance Honda VFR800 Gen 6 (2002-2013) Velocity stack kit is here! ![]() So why delay? increase the performance and the throttle response of your bike now, by installing Stringer Stacks throttle body velocity stacks today! Stringer Race Station has also designed their own servo-operated RPM-based variable stacks for bikes not equipped by the manufacturer with electronically controlled variable stacks (GSXR / ZX10R / CBR / Moto2, etc ) these servo-controlled stacks give a huge increase in performance and throttle response over OEM static stacks and have been rigorously tested in lab simulations, on the dyno, and on the race track.įor riders who are not permitted to modify the airbox/induction of the race motorcycle in the series they are racing we also have the Lower Velocity Stack kits available. Stringer Race Station uses high-end 3D printers and materials to ensure a premium product at a competitive price.įor bikes that come from the factory with variable stacks (R1 / R6 etc) Ray has designed and printed velocity stacks in durable materials resistant to fuel and other contaminants. Stringer Race Station has created StringerStacks, 3D printed velocity stacks for modern sports bikes that give improved performance throughout the full RPM range, much akin to race kit stacks. ![]() Ray Stringer, the creator of Stringer Stacks of Stringer Race Station (SRS) is a renowned engine builder & tuner, race bike builder, race team crew chief as well as a former British Superbike racer.
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