For vehicles with an electronic wastegate.

This is a replacement turbocharger for your BMW. Signs of a failing turbo include unusual oil consumption, smoking, increased turbo lag, failure to hold boost, or the vehicle going into "limp mode". To restore the performance of your BMW, be sure to replace any failing turbocharger.

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

Turbocharger Assembly with Waste Gate Actuator

Enhance your engine's performance with this all-in-one turbocharger assembly, featuring the waste gate actuator and an electric valve, complete with a gasket. This adaptable unit conveniently mounts to the front of the engine on the exhaust manifold, providing a seamless connection to the intake system.

Notably, this turbocharger is identified by two part numbers: 11657647003 and 11657600890, both of which correspond to the same top-tier product from Borg Warner, ensuring unmatched reliability and quality.

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.

Signs of a failing turbo include unusual oil consumption, smoking, increased turbo lag, failure to hold boost, or the vehicle going into "limp mode". To restore the performance of your BMW, be sure to replace any failing turbocharger.

Includes $300.00 core charge to be refunded when we receive your rebuildable core.

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 335 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 all Genuine BMW parts. It includes everything that needs replacement during a 335 N54 twin turbo overhaul -

• Front and rear Genuine BMW rebuilt 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

BMW rebuilt turbos have a two year warranty.

Each turbo has core charge each that will be refunded once your original rebuildable turbos are returned.