Description
The Standard 57mm throttle body when modifying to higher levels of power becomes a restriction that needs to be removed. Consider also that at wide open throttle the excessively wide butterfly spindle imposes a further restriction (a reduction of 570 square mm’s) reducing the cross sectional area to the equivalent of just 50mm diameter! At GTT we precision bore to 63mm diameter. This size perfectly matches the internal diameter of the SC inlet plenum which it is bolted and dowelled onto. The surface finish is maintained to CLA 32 or better. In other words very fine and accurate, ensuring no sticking throttle plate or leaking on idle. We have seen other offerings that would make a ploughed field look flat! Throttle bodies are sold on exchange. Where possible the customers own part is modified. .
Available for: MINI Gen 1 Cooper S (also JCW / GP1)
(Fits all gen 1 MINI Supercharged models…. Cooper S, JCW & GP1)
£299+vat NO LONGER ON EXCHANGE! 🙂 ( No need to pay the Surcharge or need to send us your original unit as part of the old exchange basis)
Please note external casting appearance may differ from images as these were sold on an exchange basis (not brand new castings) a LOT OF WORK GOES INTO MAKING THESE COMPLEX ITEMS, You cannot see the unit when installed, you will not be disappointed by the performance!
The car will calibrate the TB automatically after a minute of full operation (rev the car / drive it) Note: the car usually idles strangely on initial start up.
Very Last Units…. Unlikely to make more due to availability & cost.
Some units may have some small chips to the edge of the connector…. This doe not affect the operation… For extra security against water you may wish to use a very small amount of silicone sealant… These are tested before dispatch.










