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.
This product was last offered at the strikethrough price on
06-10-2026
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:
Extreme GTD Upgrade Features:
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.
Discover the incredible JMTCs Super 42 high-pressure, high-flow dual-scrolling turbo upgrade by JM Turbo Cooper, designed for enthusiasts craving peak performance. With a substantial 42mm compressor, this turbocharger is engineered to deliver early and extended boost compared to the JWC turbo, resulting in outstanding response, torque, and power gains across the entire power band. The 42mm design also ensures an added kick at the top end when you need it most, making it the ultimate choice for those seeking an extreme street upgrade that delivers full race performance. It provides impressive torque, quick spooling, and extended durability. For race applications, consider pairing it with one of our aftermarket exhaust systems to unlock its full potential.
It's important to note that unlocking the extra power requires a custom tune. Running this turbo without a tune will result in minimal to no HP gain.
Please ensure you have a cleaned or new aftermarket catalytic converter and intercooler to avoid potential boost codes.
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.
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.
BMW G30 19" V710 Wheels - Staggered Set Of Four offer an outstanding upgrade for enhancing the appearance and performance of your vehicle. Renowned for their innovative design, Rotiform wheels are a top choice for car enthusiasts looking to combine style with functionality.
These wheels are designed for those who want to make a statement while enjoying superior build quality and performance. Ball seat wheel bolts are required for installation.
Super SF56 Upgraded Turbocharger - New by JM Turbo Cooper is the ultimate performance upgrade for BMW enthusiasts. Engineered for both street and track use, this turbocharger features a massive 50mm compressor and upgraded 9-blade lightened high-flow turbine. It delivers quick full boost and significant power gains throughout the RPM range, maintaining quick response and enhancing torque and power over the original turbo.
Upgrade your BMW with the Super SF56 Upgraded Turbocharger for unparalleled performance and power gains.
Explore the JMTC S42 Turbocharger MINI Cooper Upgraded Turbo K03 - Refurbished, crafted for MINI Cooper enthusiasts seeking enhanced performance and power gains.
Upgrade your MINI Cooper with the JMTC S42 Turbocharger for uncompromising performance and power.
Please contact JM Turbo Cooper for local and regional tuners requiring custom tunes.
Upgrade your Mini's performance with the TTE300 turbocharger from Turbo Engineers (TTE). Built on a brand new Genuine BorgWarner twin-scroll turbocharger, the TTE300 undergoes a meticulous transformation. Featuring a larger TTE billet compressor wheel, CNC re-profiled compressor cover, and intake porting for optimized airflow, this turbocharger ensures rapid response and maximum efficiency. The CNC re-profiled exhaust turbine housing with a larger 9Blade turbine provides higher flow and reduced back pressure. Equipped with a special profile 360-degree high-performance BorgWarner motorsport journal bearing and a sprung Genuine BorgWarner actuator, the TTE300 guarantees durability and excellent transient response. Delivering 300PS+ with proven 98Ron fuel, this plug-and-play turbocharger is a testament to TheTurboEngineers' quality, meticulously assembled and balanced for high-speed performance.
