1) GTT 220 Package STAGE 1 Tuning Kit ( Gen 1 R52/R53)
1) GTT 220 Package STAGE 1 Tuning Kit ( Gen 1 R52/R53)

You can now buy all mail order items of the GTT 220 Performance package together! Discounted price save £52! (ex vat) This is the perfect starting Tuning Kit, over 5000 sold/installed since 2003! Well proven, reliable & Best on the … Read More

£599.00 Select options
Sale!
2) GTT “STAGE 2” STEP-UP TUNING KIT (DEAL PRICE!) SAVE £30!
2) GTT “STAGE 2” STEP-UP TUNING KIT (DEAL PRICE!) SAVE £30!

SAVE! DEAL PRICE….Limited time only at this price! After (or before) fitting the GTT 220 kit this is the perfect next step. This is a perfect step or stand alone power/performance modification for the R53. Works very well with GTT sports … Read More

Original price was: £588.00.Current price is: £559.00. Add to cart
3) SAVE! GTT Aeroxbox Strutbrace & Cold Ram Induction Kit Deal!
3) SAVE! GTT Aeroxbox Strutbrace & Cold Ram Induction Kit Deal!

Save £30! with this combination deal. Mix And Match Colour Options! Red, Black & White Induction Kit cutaway to suit GTT Strutbrace. See product specs below: Aerobox Strubrace: https://www.gtt.uk.com/product/mini-gen-1-gtt-aerobox-top-strutbrace/ Cold Ram Induction kit: https://www.gtt.uk.com/product/mini-gen-1-gtt-cold-ram-induction-kit/ (for shipping enquires please email)   … Read More

£499.00 Select options
4) Gen 1 R53/R52 Mini Cooper S “4 Piece” Pulley Upgrade kit! DEAL PRICE! Save £27!
4) Gen 1 R53/R52 Mini Cooper S “4 Piece” Pulley Upgrade kit! DEAL PRICE! Save £27!

GTT R53/R52 Mini Cooper S “4 Piece” Pulley Upgrade kit! SAVE £27+VAT! Lightweight crank pulleys – Lightens drive train , Dampened, Standard and overdrive sizes for increased power(0,+1,2,3&4% options) Hard Anodized! https://www.gtt.uk.com/product/mini-gen-1-gtt-lightweight-crank-pulley-v2/   Interference Fit Supercharger Pulleys (-15&-17%  options) Gains 25-30bhp over … Read More

£479.00 Select options
BRAND NEW – Mini Gen 1 R53 / R52 W11 Cylinder Head
BRAND NEW – Mini Gen 1 R53 / R52 W11 Cylinder Head

This cylinder head, camshaft, valves & rockers are 100% brand new! (not removed from a new car for the JCW kit like our other item)   These are not ‘reconditioned’ or spray painted, just 100% brand new   kept in … Read More

£1,395.00 Read more
Gen 1 Mini Stage 3 Clutch Kit (Cover, Centre Plate & bearing)
Gen 1 Mini Stage 3 Clutch Kit (Cover, Centre Plate & bearing)

For use with GTT or other Solid Alloy Flywheel Only. This kit has been specially put together and tested by us ! Properly suited for aggressive street use and moderate track use and good engine idle quality , but with … Read More

£679.00 Add to cart
Sale!
GTT Mini Gen 1 SUPERCHARGER UNIT  – UPRATED/UPGRADED – BLACK TEFLON ROTORS
GTT Mini Gen 1 SUPERCHARGER UNIT – UPRATED/UPGRADED – BLACK TEFLON ROTORS

New 2021 Product. GTT Supercharger units – We buy Genuine Mini/Eaton directly from Mini, The Units are Stripped and Built by GTT engineers to a much superior spec over original standard units. This Listing is for Black Teflon coated – … Read More

Original price was: £2,695.00.Current price is: £2,395.00. Select options
Sale!
GTT Mini Gen 1 SUPERCHARGER UNIT  – UPRATED/UPGRADED – GREY ROTORS
GTT Mini Gen 1 SUPERCHARGER UNIT – UPRATED/UPGRADED – GREY ROTORS

New 2021 Product. GTT Supercharger units – We buy Genuine Mini/Eaton directly from Mini, The Units are Stripped and Built by GTT engineers to a much superior spec over original standard units. This Listing is for Grey rotors – see other … Read More

Original price was: £2,395.00.Current price is: £2,100.00. Select options
Mini Gen 1 GTT ‘Ring Gear’ for R53 Aluminium Lightweight Flywheel
Mini Gen 1 GTT ‘Ring Gear’ for R53 Aluminium Lightweight Flywheel

Replacement ring for GTT Flywheel only….As shown here https://www.gtt.uk.com/product/mini-gen-1-gtt-r53-aluminium-lightweight-flywheel/ Very slowly Precision cut to perfectly match the oem tooth form unlike other brands (that are noisy when cranking+wear quickly) considerably wider than other brands for a longer life. Starter Motor … Read More

£195.00 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 … Read More

£469.00 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 NEW V2
Mini Gen 1 GTT Adjustable Fuel Pressure Regulator NEW V2

NEW, EVEN HIGHER SPEC VERSION (V2) GTT V2 AFPR comes with 3 o-rings…. and high flow internal fuel filter. The OEM filter on the V1 was found to be restrictive on highly tuned applications. New Improved body Higher spec internals Now … Read More

£179.00 Read more
Mini Gen 1 GTT Adjustable Vernier Cam Sprocket V2 & Timing Chain / Tensioner Kit
Mini Gen 1 GTT Adjustable Vernier Cam Sprocket V2 & Timing Chain / Tensioner Kit

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

£239.00 Add to cart
Sale!
MINI GEN 1 GTT BLUE STRUTBRACE, INDUCTION KIT & UNDERTRAY PACKAGE
MINI GEN 1 GTT BLUE STRUTBRACE, INDUCTION KIT & UNDERTRAY PACKAGE

    Very Limited Stock!!  Only 5 Kits! Not only will you be getting a GTT “throw Back” Classic Limited edition colour kit similar to featured on the original 2004-2014 GTT Minis. Kit includes: 1x Battery Shield/ Under Tray 1x Cold … Read More

Original price was: £597.00.Current price is: £519.00. 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

£189.00 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

£49.95 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

£29.00 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

£289.00 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

£59.00 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

£299.00 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

£245.00 Select options
Mini Gen 1 GTT LIVEWIRES Ignition Lead Set V3
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

£139.00 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 … Read More

£149.00 Select options
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

£1,195.00 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 R53 Aluminium Lightweight Flywheel ( V2 )
Mini Gen 1 GTT R53 Aluminium Lightweight Flywheel ( 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

£459.00 Add to cart
Mini Gen 1 GTT Replacement Flywheel Surface Plate
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

£45.00 Add to cart
Mini Gen 1 GTT Silicone Radiator Coolant Hose Kit
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

£99.00 Select options
Mini Gen 1 GTT Spec Camshafts
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

£299.00 Add to cart
Mini Gen 1 GTT Stage 1 Clutch Kit
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

£399.00 Add to cart
Mini Gen 1 GTT Stage 1 Gas-flowed/Ported Cylinder Head
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

£499.00 Read more
Mini Gen 1 GTT Stage 2 Gas-flowed/Ported Cylinder Head
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

£895.00 Read more
Mini Gen 1 GTT Stage 3 Gas-flowed/Ported Cylinder Head
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

£1,049.00 Read more
Mini Gen 1 GTT Supercharger Pulley
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

£99.00 Select options
Mini Gen 1 GTT Tensioner Limit Stop V2
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

£39.00 Add to cart
Mini Gen 1 GTT Tensioner Pulley
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

£79.00 Add to cart
Mini Gen 1 GTT Twin Bearing Idler Pulley
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

£99.00 Add to cart
Mini Gen 1 GTT V2 Optimised Bypass Valve
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

£159.00 Add to cart
Mini Gen 1 JR Cotton Gauze Panel Filter Upgrade
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

£59.00 Add to cart
Mini Gen 1 R53 Genuine Original Equipment 3 Piece Clutch Kit
Mini Gen 1 R53 Genuine Original Equipment 3 Piece Clutch Kit

For use with original dual mass flywheel only. If your clutch action has become stiff or notchy in operation or starting to slip under load this new clutch offers smooth light action and handles moderate power upgrades very well too. … Read More

£169.00 Add to cart
Mini Gen 1 Stage 2 Clutch Kit
Mini Gen 1 Stage 2 Clutch Kit

NOTE: NOT HELIX AS PIC SHOWS – NOW GTT FULLY CUSTOM KITS For use with GTT or other Solid Alloy Flywheel Only. This kit has been specially put together and tested by us ! As used on our own 400bhp … Read More

£595.00 Add to cart
NEW – Mini Gen 1 R53 / R52 W11 Cylinder Head
NEW – Mini Gen 1 R53 / R52 W11 Cylinder Head

This cylinder was removed from a brand new GTT just car before registration when opting for the dealer fit JCW Tuning kit (r53)   These are not ‘reconditioned’ or spray painted, just exactly as it was when removed from the … Read More

£1,195.00 Add to cart
OEM Dual Mass Flywheel for R53 / R52 Cooper S, JCW & GP1
OEM Dual Mass Flywheel for R53 / R52 Cooper S, JCW & GP1

Brand New Original Equipment MINI Replacement Dual Mass Flywheel for R53 / R52 Cooper S, JCW etc all years See other items for OEM Clutch 3 piece Kit. Note: we highly recommend fitting a new starter motor when fitting to … Read More

£579.00 Add to cart
Surcharge (Mini Gen 1 GTT  Large Throttle Body)
Surcharge (Mini Gen 1 GTT Large Throttle Body)

This is the surcharge if you have not already sent or if we have not yet received your standard item, this will be refunded when we have received your standard item complete and in good condition. (including orange rubber seal) if … Read More

£95.00 Add to cart
Surcharge (Mini Gen 1 GTT Adjustable Fuel Pressure Regulator)
Surcharge (Mini Gen 1 GTT Adjustable Fuel Pressure Regulator)

This is the surcharge if you have not already sent or if we have not yet received your standard item, this will be refunded when we have received your standard item in good condition. £79+vat

£79.00 Add to cart
Surcharge (Mini Gen 1 GTT Gas-flowed/Ported Cylinder Head)
Surcharge (Mini Gen 1 GTT Gas-flowed/Ported Cylinder Head)

This is the surcharge if you have not already sent or if we have not yet received your standard item, this will be refunded when we have received your standard item in good condition. £250+vat

£250.00 Add to cart