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Listing Template 2018

danST Engineering are pleased to offer this high quality velocity stack kit for the Kawasaki ZX12R throttle bodies. The kit consists of the following:

4x Flange fitment 45mm Diameter Spun Aluminium trumpets 90mm long (50mm also available)

4x Clamp Rings with Inside Diameter 56.5mm and Outside Diameter of 75mm with grub screws

4 x Machined Aluminium Adapter Spigots with grub screws

8x M6 Button Head Screws

This kit has been designed for anyone running the bike throttle bodies without the original airbox arrangement - particularly in kit or modified car applications.

A pipercross PX500 or PX600 with the appropriate baseplate can be incorporated into the kit if desired. Please contact us for further information and fitment options.

Below are links to two different engines fitted with two popular bike carb kits (one 1800 zetec with R1 Mikuni carbs, one Ford 2.3 Duratec fitted with ZX9R carbs). The lower lines are both carb sets without trumpets and the higher lines are when fitted with our 50mm trumpets. In both cases significant performance increases (typically 5-9bhp) are seen between 3500-6000rpm when the carburettors are fitted with our trumpet kit. Additionally the torque curve is seen to be much smoother. Note that the Duratec is making peak power very low in the RPM range due to a very restrictive exhaust (soon to be replaced!), but the effect of the trumpets on engine performance is clear. We see so many bike carb conversions running without any trumpets (bike breakers often remove them along with the original bike airbox) - ALL of which would see the benefits highlighted below, probably the cheapest power you can find!

Should you have another throttle body diameter please contact us - we may be able to make a similar kit to suit

Pricing FAQ: Why are your prices so expensive on ebay?

Answer: We need to account for all tax, carriage and ebay fee?s within the buy-it-now price. It costs between 15-20% of the buy-it-now price to sell on ebay and this must therefore be passed on to the ebay buyer. Ebay fee's are charged on both the tax and the carriage (yes, basically a tax on top of a tax!). Our calculation is therefore:

[(RRP + Carriage) x 1.2] x 1.2

The first multiplier of 1.2 is VAT. The second 1.2 multiplier is to cover the ebay fee?s. We hope that this goes some way to explaining why our ebay prices are more expensive.