This ad is for a set of 4 velocity stacks which not only enhance normally aspirated inlet performance but also have built-in nitrous injectors, by the ‘Wizards of NOS’.   The WON Vortex Velocity Stacks are the latest state of the art nitrous injection technology, specifically designed for Gen 1 Hayabusas. 

Created specifically for Hayabusa customers worldwide but soon to be made available for a select range of other vehicles, our latest creation, the 'Vortex Velocity Stacks' are the perfect complement to WoN's world leading nitrous systems.

The WON 60mm VVSs are intended to fit Gen 1 Hayabusa intakes and offer much more than just the addition of a nitrous inlet port. These 2 piece CNC machined, ultra high quality, bright gloss anodised billet alloy velocity stacks, are unlike any other product on the market and offer unparalleled performance.

Our Vortex Velocity Stacks have;

• The biggest bore velocity stacks ever offered (at 60 mm), for a Gen 1 Hayabusa
• A unique integral hypo injection nitrous nozzle that generates the vortex
• An integral fuel atomising injection port for wet nitrous applications

 They are also;

• Quick and easy to install.
• Freer flowing due to the lack of a protruding nozzle – worth up to 10 bhp NA and over all other nitrous velocity stacks, that take Fogger type nozzles.

 When comparing WON Vortex Velocity Stacks with other alternatives;

• They have a much bigger trumpet entry than any other brand (60mm compared with 55mm).
• The trumpet ‘tapers down’ to the TB bore size, rather than being ‘stepped down’.
• They replace the rubbers entirely unlike other aftermarket trumpets.
• The combination of the above features, produces a smoother flow path and results in a much higher air flow capability than any other alternative.
• They are a two piece billet alloy unit (rather than ‘just’ a one piece trumpet made from rolled alloy tube, as offered by other companies), so you are not only getting a much higher quality product but you are also getting double the product for your money.
• They have an integrated nozzle (there's no need to purchase a set of nozzles in addition to the trumpets, as with other brands), so there are no extras to buy.
• The nozzle is ‘totally unique’ and causes far less obstruction to normal airflow than a Fogger type nozzle.
• This design positions the nitrous plume in a far better position than any alternative from any other company.

All things considered, this is a vastly superior product to any alternative (trumpets, spray bars, etc. etc), so you're getting ‘much more’ for your money.

Why choose a WoN nitrous system?

Wizards kits are the best developed nitrous gear on the market, and come with a unique lifetime guarantee that reflects WoN's confidence in their equipment.  We have been fitting nitrous systems for 20 years and simply will not use anything but WoN gear - not because they are British (though that's nice of course!), but because they are the best. 

We are an approved WoN agent and offer the buyer the technical support and peace of mind that comes with buying from an official source and obtaining the customer service and lifetime guarantee that is unique to WoN nitrous gear.

If you want to know more, just contact us by phone or via the eBay messaging system with any questions and details of your car – we’re always very happy to advise fellow enthusiasts.