
Mini Gen 1 GTT Large Throttle Bodies
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 … Read More

Mini Gen 1 GTT Lightweight Crank Pulley V2
The stock item weighs in at around 7 pounds .The GTT item weighs just one pound! The benefits are similar to those experienced with lighter flywheels: i.e. better throttle response and free revving. However both unit cost and fitting costs/time … Read More

Mini Gen 1 GTT LIVEWIRES Ignition Lead Set V3
4 plug lead set, purpose made for the Mini. The leads feature an attractive space age woven fabric sock available in a choice of colours. Easy identification and are simple to fit. For best performance these leads should be used … Read More

Mini Gen 1 GTT Oil Catch Can
The all new GTT product is purpose designed from scratch for the MCS. Its purpose is to effectively catch and store oil present in the breather system to prevent it entering and contaminating the intercooler core, which dramatically reduces … Read More

Mini Gen 1 GTT Powermist System
•Gains of 10 -15% more power & torque •Makes even 95 octane regular pump fuel perform like 110+ octane race fuel •Reduces charge inlet temps and in cylinder temps by up to 60 deg C •Greatly reduces engine stress and … Read More

Mini Gen 1 GTT Pro Alloy Expansion / Header Tank & High Pressure Cap
Because the stock cap has two problems. Firstly they are unreliable as they often open at much less than the 1 bar (15psi) pressure specified. We’ve tested five in a week and one opened at 7 psi another 4 PSI! … Read More

Mini Gen 1 GTT R53 Aluminium Lightweight Flywheel ( New V2 )
This is the only aluminum flywheel to by designed and made in the UK for the Cooper S (all the others being US made). Here is a brief outline of spec:- See the quality…. 6082 T6 Alloy used. This … Read More

Mini Gen 1 GTT Replacement Flywheel Surface Plate
Replacement Friction Surface Plate to suit GTT Alloy R53 Flywheel. One benefit (of many) of this GTT item over steel Flywheels is the ability to change this part as it wears . It is all made in UK, held in … Read More

Mini Gen 1 GTT Silicone Radiator Coolant Hose Kit
Three piece top quality hose kit designed and made for GTT, Benefits of GTT Cooling system Hoses:P Operating Temperature Range Silicone hoses are capable of carrying fluids at much higher temperatures than rubber. If you’re building a racing vehicle or adding … Read More

Mini Gen 1 GTT Spec Camshafts
Brand new Billet camshaft (not re-ground) Produced to our own spec with over 15 years development and improvements. Further increasing power output with no loss of low end power whatsoever. The spec is very similar to the Schrick camshafts timing … Read More

Mini Gen 1 GTT Stage 1 Clutch Kit
For use with GTT or other Solid Alloy Flywheel Only. This kit has been specially put together and tested by us ! Offers great drivability with good engine idle quality , quiet operation & smooth progressive engagement combined with excellent … Read More

Mini Gen 1 GTT Stage 1 Gas-flowed/Ported Cylinder Head
These are reworked in house by GTT. Combing 14 years of gas-flowing experience and a lot of hard work; the results are outstanding. More power, better fuel consumption and improved reliability through everything working more efficiently. You really can have … Read More

Mini Gen 1 GTT Stage 2 Gas-flowed/Ported Cylinder Head
With the stage 2 things get a bit special. Firstly the exhaust ports are CNC milled out to achieve perfect port size, shape and position. We are unique in using true 3D cutter paths, cad-cam generated. Long series ball nose … Read More

Mini Gen 1 GTT Stage 3 Gas-flowed/Ported Cylinder Head
With the stage 2 and 3 things get a bit special. Firstly the exhaust ports are CNC milled out to achieve perfect port size, shape and position. We are unique in using true 3D cutter paths, cad-cam generated. Long series … Read More

Mini Gen 1 GTT Supercharger Pulley
The GTT S/C pulley is featured in all GTT conversions (except GTT190) , and is responsible for supplying the additional boost, that provides much of the power increase in all Cooper S performance conversions (JCW included ! ). Material GTT … Read More

Mini Gen 1 GTT Tensioner Limit Stop V2
NEW VERSION 2 (24mm wide for extra strength) This product prevents the tensioner pulley & damper smashing into the crank pulley (harmonic damper) should the drive belt snap. A snapped belt is bad enough in itself, without a destroyed … Read More

Mini Gen 1 GTT Tensioner Pulley
To complement our Idler Pulley, the GTT Tensioner Pulley features the same close tolerance machining and surface finish, minimising belt wear. It is produced in L168 aerospace grade alloy then hard anodised in black for maximum durability. It is supplied … Read More

Mini Gen 1 GTT Twin Bearing Idler Pulley
This Hard Anodised L168 aerospace grade alloy Competition Idler Pulley features 2 separate bearings (not a single twin ball race bearing) these are positioned as far apart as possible to stop overheating, the housing being extended outwards to achieve this. … Read More

Mini Gen 1 GTT V2 Optimised Bypass Valve
* Brand New (not on exchange) Genuine Mini part optimised in house. * Re-centralised butterfly.( Other companies do not do this part ! …. just the stop screw ) * Re-calibrated stop screw. * Prevents any boost pressure / power loss … Read More

Mini Gen 1 JR Cotton Gauze Panel Filter Upgrade
The cotton air filter is a direct replacement for the restrictive standard paper filter. Due to the design of the cotton filter it has excellent filtering capability with less restriction, with a small increase in over the standard item. Can … Read More