Ensure proper sealing when installing the turbos on your N54.

Kit includes:

• 16 - ASA M7x39 studs
• 16 - Flange nuts
• All required gaskets and o-rings
• Water pump install hardware
• Replacement vacuum hose
• T-bolt clamps

Helpful hints:

For complete installation instructions, refer to Haynes Service Manual (T#193950).

Both downpipes must be removed to remove either front or rear turbo. Tie rod end may need to be separated from knuckle for clearance. Steering rack may also need to be rotated away from subframe for access. Valve cover heat shield will need to loosened and pushed upward to get clearance for turbo manifold removal.

If studs back out of cylinder head and nuts are seized to studs, replace studs. Thread studs in to head by hand to prevent cross threading. When installing the new studs in the cylinder head, use a high temperature loctite in the cylinder head side, and copper anti-seize on the nut side.

To make more room for access to the front turbo, remove the rubber line running in front of the subframe that attaches to the back of the map thermostat and remove the clip. Cut off the OEM clamp and replace it with a new hose clamp as well.

Complete removal of the water pump is not required. Detach the water pump from the side of the block and push it out of the way to make more room for access to the front turbo. If water pump is unbolted from the block, the aluminum bolts must be replaced.

Torque specs:
Bracket to cylinder head: 9Nm
Coolant supply line to crankcase: 9Nm
Coolant return line to crankcase: 8Nm
Coolant return line to turbo: 8Nm
Coolant supply line to supply line: 8Nm
Exhaust manifold heat shield: 8Nm
Oil supply line to crankcase: 20Nm
Oil pressure line to turbo: 8Nm
Oil return line to crankcase: 8Nm
Oil return line to turbo: 8Nm
Turbo manifold to head: 20Nm

Introducing Turbosmart’s OPR V2 Turbocharger Oil Pressure Regulator, a cutting-edge solution launched in 2022 that ensures steady oil pressure for your turbocharger. This innovative regulator features a return-less design with an integrated 44 Micron Stainless Steel Mesh Oil Filter, providing robust performance and protection.

The OPR V2 is the first of its kind, utilizing Turbosmart’s proprietary flow control method to maintain optimal oil pressure regardless of engine oil variables like pressure or temperature. It guarantees a smooth oil flow to your turbocharger, safeguarding critical components such as Exhaust Drive, Back & Charge Pressures from excessive oil pressure that could lead to oil consumption and smoke.

Gone are the days of guesswork with restrictors and complex plumbing for oil pressure regulation. The OPR V2 simplifies the process with its return-less, inline installation and the convenience of a built-in 44 Micron Oil Filter. This filter, made of serviceable and replaceable Stainless Steel Mesh, adds an extra layer of defense against engine oil debris that could harm your turbocharger.

Key Features:

Innovative Patent Pending Design Durable Aluminium (6262 T6) Anodised Body & Valve Regulated Oil Pressure Compatible with Most turbochargers Integrated Stainless Steel (304) Mesh Oil Filter -4AN Inlet and Outlet for easy installation 1/8 NPT Sensor/Gauge Port for monitoring Directional Inlet Feed Logic for optimized performance Laminar Flow Output for consistent oil delivery Compatible with all Engine Oils Designed and Manufactured in Australia

Elevate your BMW's performance with the JMTC Dual Scroll JM40 K03 turbocharger, meticulously engineered as a reliable and high-performance upgrade compatible with all OEM components. Featuring a high-flow twin-scroll design with an extended tip compressor, this turbocharger ensures early boost delivery and sustained performance throughout the RPM range. Experience exceptional torque, rapid spooling, and sustained power gains across the power-band, offering superior response and increased performance for your BMW.

Benefits:

• High-flow twin-scroll JM40 turbocharger for BMW upgrades
• Extended tip compressor for early and sustained boost
• Outstanding torque and power gains across the entire RPM range
• Compatible with Mini Cooper N14, N18, and Peugeot RCZ 200 (THP engine)
• Fits OEM intake boot and various aftermarket intake systems

Key components to help get your install done easily and effectively. Get your car running right again!

Kit includes:​

• All required gaskets and o-rings
• All exhaust and downpipe gaskets
• T-bolt clamps
• 1gal of Coolant

Turbo maintenance has become part of our daily lives here. Our Service department does several turbo overhauls, wastegate adjustments, carbon cleaning, and upgrades every week. For the DIY owner, however, having a complete overhaul kit takes some of the stress out of 135/535 turbo replacement and this kit includes all of the basic items. It's highly likely N54 turbos will have to be replaced before 100,000 miles. Signs of a failing turbo are high oil consumption and blue smoke from exhaust (not from a leak or failing CCV system) because the internal oil seals are no longer retaining oil. Without critical lubrication and cooling effects from oil, the turbo shafts and bearings are usually the first to wear and that requires a complete rebuild. You might also see increased turbo lag or failure to hold boost, which is usually a sign of a failing wastegate or some other internal issue. With any internal problems the turbos need to be replaced. 

This package uses new (not rebuilt) Mitsubishi turbochargers (the original supplier to BMW). These are essentially direct replacement turbos but we went straight to the manufacturer instead of going through BMW. They are the same as the factory turbos but without a BMW logo so you save yourself a few hundred dollars. It includes everything that needs replacement during a 135 or 535 N54 twin turbo overhaul -

• Front and rear new OEM Mitsubishi turbos (the original supplier of BMW turbos)
• 1 gallon of Genuine BMW coolant
• ​16 - ASA M7x39 studs
• 16 - Flange nuts
• All required gaskets and o-rings
• Water pump install hardware
• Replacement vacuum hose
• T-bolt clamps

These are brand-new turbos so a core charge does not apply.

Turbo maintenance has become part of our daily lives here. Our Service department does several turbo overhauls, wastegate adjustments, carbon cleaning, and upgrades every week. For the DIY owner, however, having a complete overhaul kit takes some of the stress out of 135/535 turbo replacement and this kit includes all of the basic items. It's highly likely N54 turbos will have to be replaced before 100,000 miles. Signs of a failing turbo are high oil consumption and blue smoke from exhaust (not from a leak or failing CCV system) because the internal oil seals are no longer retaining oil. Without critical lubrication and cooling effects from oil, the turbo shafts and bearings are usually the first to wear and that requires a complete rebuild. You might also see increased turbo lag or failure to hold boost, which is usually a sign of a failing wastegate or some other internal issue. With any internal problems the turbos need to be replaced. 

This package uses new (not rebuilt) Mitsubishi turbochargers (the original supplier to BMW). These are essentially direct replacement turbos but we went straight to the manufacturer instead of going through BMW. They are the same as the factory turbos but without a BMW logo so you save yourself a few hundred dollars. It includes everything that needs replacement during a 135 or 535 N54 twin turbo overhaul -

• Front and rear new OEM Mitsubishi turbos (the original supplier of BMW turbos)
• 1 gallon of Genuine BMW coolant
• ​16 - ASA M7x39 studs
• 16 - Flange nuts
• All required gaskets and o-rings
• Water pump install hardware
• Replacement vacuum hose
• T-bolt clamps

These are brand-new turbos so a core charge does not apply.

JM Turbo Cooper - Extreme GTD47 K04 Turbocharger Upgrade

JM Turbo Cooper offers the Extreme GTD47 K04 turbocharger upgrade designed to deliver outstanding reliability and high-performance gains for the 2007+ MINI Cooper. This upgrade is a top choice for Mini and Peugeot owners, providing exceptional power output for applications exceeding 280hp.

Update: The improved gasket design on the back side now features a seamless gasket inset, and the package includes a new gasket for your convenience.

The JMTC Extreme GTD47 upgrade boasts a high-pressure, high-flow, dual-scrolling turbo that features a substantial 50mm compressor wheel. This design ensures maximum boost at the top end of the RPM range, making it ideal for track, off-road, and extreme street applications. The large GTX exhaust turbine complements the setup, delivering extra boost at high RPMs and preventing torque loss compared to the stock K03 turbine.

Whether you seek extreme track performance, drag strip dominance, or unrivaled street upgrades, this turbocharger is the perfect choice. It offers impressive torque and durability, outperforming many other options on the market. To fully unleash its potential, we recommend pairing it with one of our aftermarket exhaust systems.

It's important to note that to harness the additional power, a custom tune is required. Running without a tune will result in minimal to no HP gain.

Estimated Power Gains:

• Approximately 60hp with a tune, intercooler, downpipe, cold air intake, new plugs, basic maintenance, and carbon blasting/cleaning.
• 120hp or more with all the above modifications, plus a ported head, larger valves, ICE pipe, intercooler, and a 3"+ or larger exhaust system.

Extreme GTD Upgrade Features:

• Brand new turbo!
• 47mm billet compressor
• High-flow GTX exhaust turbine
• High-strength K04 internals
• Upgraded 360-degree bearing
• Designed for higher pressure
• High-temperature alloy turbine housing
• Dual-scrolling turbine housing
• Water-cooled bearing housing

For engine and turbocharger reliability, JMTC recommends a 3.0" or larger downpipe/exhaust size for the GTD turbochargers. Please avoid using the stock downpipe or stock-sized catalytic converter.

The OEM intake boot can be used with the removal of the inner sleeve for N14 engines. For N18 engines, the OEM boot at the turbo connection will need to be heated and expanded slightly, which can be done with a heat gun. This turbocharger also fits AEM intake, NM Eng intake, and Forge Intake (Boot). Please note that the hose might need to be warmed and stretched over with a hose expander.

For the racing enthusiast or those just looking for the best, this is the ultimate upgrade to fully maximize the power output of your EWG N55 engine. The compressor wheel inside the turbocharger is increased in size allowing ~30% greater flow thus enabling additional boost pressures at higher engine speeds while retaining efficiency.These are fully cast turbos that are manufactured to Dinan specifications along with an upgraded thrust system over the stock turbo to ensure reliable and prolonged life. In order to attain maximum advertised power gains these big turbos will need to be paired with DINANTRONICS Stage 4, as well as Dinan’s intercooler to fully regulate the boost increase and deliver a polished product although the exhaust and intake are also recommended. 

Benefits of the Dinan Big Turbo for the EWG N55 Engine:

• Fully cast turbo that is manufactured to Dinan specifications with an upgraded thrust system thereby avoiding lengthy turnaround times caused by a core exchange program. 
•  Larger billet compressor/impeller wheel that allows ~30% greater flow over stock which then enables additional boost to be realized while retaining efficiency.
• Turbo assembly is compatible with electric wastegate vehicles only.
• Peak power: 445 HP @ 6000 RPM and 455 ft-lbs @ 3000 RPM and a max gain of 128 HP @ 6000 RPM and 113 ft-lbs @ 6000 RPM when coupled with other Dinan Performance upgrades. (Data from F22 M235i.) 448 HP @ 6500 RPM and 417 ft-lbs @ 3000 RPM and a max gain of 152 HP @ 6500 RPM and 123 ft-lbs @ 6500 RPM when coupled with other Dinan Performance upgrades. (Data from F32 435i. Other variants may differ.) 
•  Dinan Installation instructions detail a procedure which is quicker than BMW's turbo replacement procedure saving the end-user money and time at the shop (Applicable to RWD vehicles only). 
• Includes o-rings and gaskets needed for complete installation on a RWD vehicle only. If installing on an xDrive vehicle Dinan P/N D313-0117 is required for additional installation hardware.
•  Factory matching new car warranty (4yr/50k) when run in Dinan specification.
• 50 State Emissions legal; CARB EO # D-176-49.

MINI R55 to R59 JMTC MCS Refurbished Turbocharger N18

The MINI R55 to R59 JMTC MCS Refurbished Turbocharger N18 offers exceptional performance with its high-flow twin-scroll turbine and extended tip compressor. This turbocharger enhances boost response, delivering significant torque and power gains across the entire power band. Designed for early spool-up and sustained high RPM performance, it achieves optimal results when paired with an aftermarket exhaust system.

• High-flow twin-scroll turbine for superior performance
• Extended tip compressor wheel for improved boost and response
• High-temperature alloy turbine housing for durability
• Water-cooled bearing housing for enhanced cooling
• Includes $100 core charge, refundable upon core return

Additional Information:

• MCS OEM/Interchange Part Numbers: 53039880163, 53039880118, 53039700163, 53039880181, 53039700181, 53039880118, 53039700118, 53039710163
• Product video available

Notes:

• New oil supply line recommended for optimal performance
• Optional refurbished catalytic converter available for extended 2-year warranty
• Refurbished parts may show signs of previous use, including scratches or imperfections
• CNC work done before porting; exact port matching within 100 microns cannot be guaranteed

The JMTCs S45 F56 turbocharger was designed with the street and track enthusiast in mind. We started with our huge 50mm compressor and upgraded quick spool high flow turbine to give you full boost quick and a huge amount of power at the top end. We also designed it to maintain the quick response of the original turbo but deliver much more torque and power.

This turbocharger not only delivers high torque in the low to mid-range but you will also see a power increase at higher RPM. No torque or power loss like you see with the original small 43mm turbo. If you are looking for a great street, track, or strip upgrade that delivers full race performance this is the turbo for you. Don’t be left at the starting line by any other car and get one our S45 turbos today.

S45 Specs

• 50/67mm Billet High flow compressor
• Quick Spooling 45/40mm High Flow exhaust turbine
• High strength internals with 360deg bearing
• Designed for higher pressure and high temperature turbine housing
• Water cooled bearing housing and quick spooling dual scrolling housing
• New electronic wastegate actuator (new turbo only, DV/BOV not included)

Requirements

• 3" full exhaust (to increase life of the turbo and the engine)
• ECU tuning (to increase preset power due to ECU load limits) - Please contact JM Turbo Cooper for local and regional tuners that require a custom tune for it to perform. JM Turbo Cooper
• One step colder spark plugs
• New oil supply line (to increase life of the turbo)

For engine and turbocharger reliability reasons JMTC requires a 3" or larger exhaust (from turbo to exhaust tip, no exceptions). As well as installing a new oil line and one step colder spark plugs. Tuning is not required but will be will help the turbo and engine reach their full potential. Price Includes the core charge of $250 that will be refunded when a rebuttable core is returned to JMTC. Refurbished turbos do not come with a wastegate actuator or one that has not been tested.