Mini Gen 1 DIY Kit For GTT  Adjustable Vernier Cam Sprocket
Mini Gen 1 DIY Kit For GTT Adjustable Vernier Cam Sprocket

Note: this is a DIY version of our GTT Adjustable Vernier Cam Sprocket V2 and does not include the cam sprocket (only shown for illustration purpose). And you will require basic machine shop facilities to machine your own  standard cam sprocket. You … Read More

£49.00 Add to cart
Mini Gen 1 GTT 16 Tubes Large Top Mount Intercooler & Snoot Boots
Mini Gen 1 GTT 16 Tubes Large Top Mount Intercooler & Snoot Boots

As with all the GTT product line up we’ve really gone to town creating numerous improvements throughout. Core Size This is the largest Cooper S top mount intercooler yet; 16 tubes for the air to flow through (OE has 11). … Read More

£399.00 Select options
Mini Gen 1 GTT 40,000 Volt Ignition Coil Pack
Mini Gen 1 GTT 40,000 Volt Ignition Coil Pack

This high output coil pack delivers a staggering 40,000 volts, ensuring strong fat sparks for improved performance and economy. Super smooth power and no misfires. It is a direct replacement for the stock coil, uses the original fixings, and is … Read More

£119.00 Add to cart
Mini Gen 1 GTT Adjustable Fuel Pressure Regulator
Mini Gen 1 GTT Adjustable Fuel Pressure Regulator

This is a direct replacement for the stock ‘non adjustable’ 3.5 Bar unit. In other words no cutting and welding of the fuel rail and no need to make a return line all the way back to the tank. The … Read More

£89.00 Add to cart
Mini Gen 1 GTT Adjustable Vernier Cam Sprocket V2
Mini Gen 1 GTT Adjustable Vernier Cam Sprocket V2

Having spent considerable time checking & testing cams one thing we have found is that the car manufacturers timing can be out by up to 3 degrees (crank angle) also as the cam chain wears it stretches and retards the … Read More

£99.00 Read More
Mini Gen 1 GTT Cold Ram Induction Kit
Mini Gen 1 GTT Cold Ram Induction Kit

This product is included in GTT 220 conversions and above. * True 360 degree rolled edge (CNC turned from solid) Ram-Pipe. This is expensive to produce and quite unique as other companies (if they even use a Ram Pipe at … Read More

£169.00 Select options
Mini Gen 1 GTT Double Iridium Sparkplugs
Mini Gen 1 GTT Double Iridium Sparkplugs

These are fitted to all GTT conversions. Although expensive for us to purchase they do provide the last word in sparkplug performance, and are vastly superior to the std. ‘4 earth electrode’ items, improving both performance and economy. The Iridium … Read More

£39.00 Add to cart
Mini Gen 1 GTT Drive Belt
Mini Gen 1 GTT Drive Belt

All GTT pulley conversions include a high quality replacement drive belt. Its construction is more supple than the original, important due to the tight radius loops encountered. As a bonus we find this belt is less prone to belt squeak … Read More

£25.00 Add to cart
Mini Gen 1 GTT ECU Re-Map
Mini Gen 1 GTT ECU Re-Map

Note – This item is set to out of stock as it requires us to book your car in to have the work done in our work shop, please contact us to make a booking.

£349.00 Read More
Mini Gen 1 GTT Fuel Injectors.
Mini Gen 1 GTT Fuel Injectors.

DID YOU KNOW! Using injectors too big can cause poor running problems at idle and light throttle. 440cc is the optimum size injector for any supercharged Cooper S and will achieve 260bhp running only 80% of its maximum output/duty cycle. … Read More

£269.00 Select options
Mini Gen 1 GTT Intercooler Snoot Boots
Mini Gen 1 GTT Intercooler Snoot Boots

This all new GTT product which replaces the stock black rubber bellows that join each end of the MCS intercooler to the ‘snoots’. They are unique in that they are moulded as an ellipse (oval) rather than a circle which … Read More

£49.00 Select options
Mini Gen 1 GTT Large Throttle Bodies
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

£249.00 Select options
Mini Gen 1 GTT Lightweight Crank Pulley V2
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

£159.00 Select options
Mini Gen 1 GTT Oil Catch Can
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 its … Read More

£95.00 Select options
Mini Gen 1 GTT Optimised Bypass Valve
Mini Gen 1 GTT 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

£109.00 Add to cart
Mini Gen 1 GTT Powermist System
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

£995.00 Select options
Mini Gen 1 GTT Pro Alloy Expansion / Header Tank & High Pressure Cap
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

£199.00 Select options
Mini Gen 1 GTT Pro Alloy Expansion / Header Tank & High Pressure Cap (Polished)
Mini Gen 1 GTT Pro Alloy Expansion / Header Tank & High Pressure Cap (Polished)

Polished Version Discontinued. Please see other option for Powder Coated Version   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 … Read More

£189.00 Read More
Mini Gen 1 GTT R53 Aluminium Lightweight Flywheel
Mini Gen 1 GTT R53 Aluminium Lightweight Flywheel

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:- * 6082 T6 Alloy used. This is the highest … Read More

£349.00 Add to cart
Mini Gen 1 GTT R53 Stealth Hybrid Induction kit
Mini Gen 1 GTT R53 Stealth Hybrid Induction kit

 GTT R53 Stealth Hybrid Induction kit Brand new for 2016 is the GTT Stealth Performance Induction Kit (air filter kit) for all supercharged Cooper S models. *JR was chosen as the latest spec JR elements feature around 30% more convolutions … Read More

£109.00 Add to cart