DanST Engineering are pleased to offer this high quality velocity stack kit for the Toyota 4AGE 20v Blacktop throttle bodies. The kit consists of the following. 4x Flange fitment 50mm Diameter Spun Aluminium trumpets 90mm long (50mm also available). 8x M6 Button Head Screws. A pipercross or with the appropriate baseplate can be incorporated into the kit if desired.Please 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. 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 - we may be able to make a similar kit to suit. Our customer service is available 24 hours a day. Thank you for your interest in our company, we hope that you will be satisfied with the service and quality of our products! Check availability with our specialists. The item "Velocity Stack Kit for 4AGE 20v Blacktop Throttle Bodies 90mm Long" is in sale since Tuesday, January 15, 2019. This item is in the category "eBay Motors\Parts & Accessories\Commercial Truck Parts\Engines & Components\Other Engines & Components". The seller is "dansteng" and is located in Shipley. This item can be shipped worldwide.