MuchBoost 2.9TFSI hybrid turbo set, Audi RS4 2.9TFSI B9 (650–730 hp)

MuchBoost 2.9TFSI hybrid turbo set, Audi RS4 2.9TFSI B9, 650–730 hp

A bolt-on MuchBoost hybrid turbo set for applications including Audi RS4 2.9TFSI B9, Audi RS5 2.9TFSI F5. This upgrade is built for 2.9TFSI applications and retains a clean, vehicle-specific installation.

The turbo is based on original KKK housings. The upgraded compressor and higher-flow turbine sides provide considerably more capacity than the factory unit, while the housings are precision-machined for the new internals.

Depending on the selected version, the manufacturer rates the turbo for approximately 650–730 hp. Final output depends on engine condition, the fuel system, intake, exhaust, cooling and, above all, the ECU calibration.

An upgraded turbo always requires vehicle-specific ECU calibration.

Futurez imports MuchBoost turbochargers and works with the manufacturer in Finland. You get secure delivery from a Finnish seller, a wide choice of payment methods and help selecting the correct turbo version. Every purchase also earns F* Bonus points.

Versions and technical differences

650 hp version

This version is built for approximately 650 hp, with upgraded internals sized for this output level.

• Manufacturer-rated power potential approximately 650 hp
• Upgraded billet compressor wheel
• Larger high-flow 9-blade turbine wheel
• Reinforced journal bearing system for higher boost
• Precision-machined compressor housing and seal plate
• Precision-machined turbine housing
• Turbo core is high-speed VSR balanced

730 hp version

This version is built for approximately 730 hp, with upgraded internals sized for this output level.

• Manufacturer-rated power potential approximately 730 hp
• Upgraded billet compressor wheel
• Larger high-flow turbine wheel

Common to all versions

• Original KKK housings and actuator
• Compressor and turbine wheels are balanced separately, followed by high-speed VSR balancing of the complete core
• Required gasket set is included
• Bolt-on fit in place of the original turbos

Upgrade service or a complete new turbo?

You can order the turbo either by sending your original unit to us as the build core or by choosing a complete, newly built turbo.

Send my original turbo: The serviceable original housings are used to build the new hybrid turbo. After ordering, we will email the return instructions so the turbo can be sent through us for the upgrade. The work and delivery normally take around 2–3 weeks from the time the turbo arrives for inspection. The supplied unit must be original and its housings must be serviceable.

Complete new turbo: You receive a complete, ready-built hybrid turbo. Your original unit does not need to be sent in, so it can be retained or sold separately.

Read more about the core exchange process and shipping instructions.

Examples of compatible vehicle applications

• Audi RS4 2.9TFSI B9 450HP (MY 2017–2024)
• Audi RS5 2.9TFSI F5 450HP (MY 2017–2024)
• Audi S6 2.9TFSI C8 450HP
• Porsche Panamera 2.9 II 440HP (MY 2009–2026)
• Porsche Cayenne 2.9 III 440HP (MY 2002–2026)

Engine codes

EA839, 8W5RXA

Related OE and turbo numbers

PAC145702
PAC-145-702
53039700768
53039700632
53039700531
06M145701L
06M145702L
06M145702T
06M145702N
06M145p02

Before ordering, check the engine code and the identification numbers on the original turbo. If you are unsure about fitment, contact us with the VIN and the old turbo numbers and we will help verify the correct version.

Tip: Ask us for the gaskets, bolts, oil lines and other installation parts at the same time. A new turbo should not be installed with a restricted oil feed or leaking gaskets.

MuchBoost turbochargers carry a 12-month manufacturer warranty covering manufacturing and material defects. The warranty does not cover failures caused by external factors such as lubrication problems, unsuitable engine calibration or installation errors.