• Compressor wheel: 44.5mm, 6-blade
• Turbine wheel: 46mm, 12-blade
• Flange: RHF4 (4JJ1 style)
• Boost rating: up to 35 PSI
• Wastegate actuator: pre-set, ready to run
• Sound: F55-style whistle + StuStuStu chatter

• Holden Rodeo RA7 (2007–2008)
• Holden Colorado RC (2008–2011)
• Holden Colorado RG (2012–2017)
• Isuzu D-MAX (2008–2016) Pre-DPF (DPF model with additional modifications + DPF delete)
• Isuzu MU-X (2012–2016) Pre-DPF (DPF model with additional modifications + DPF delete)

Modifications may be required to fit this turbo

⚠️ INSTALLATION NOTES: Some installs may require die grinding/drilling/tapping the manifold or turbo housing, a 44mm dump pipe, and EGR delete and custom oil and coolant lines.

• FLEX PRO R31-R V2 Turbo (44mm gated – Mini F55)
• Install gaskets
• Oil feed line & oil return fittings
• Liqui Moly turbo pre-lube

Basic install kit with essentials for a clean installation.

• ✅ Iconic Sound – unmistakable turbo whistle & chatter
• ✅ Fast-spooling gated turbo – excellent low–mid response
• ✅ 35 PSI boost ready – performance headroom
• ✅ Street & touring friendly – balance of sound and drivability
• ✅ Easy install – drop-in style for most 4JJ1 setups

• Manifold work: Minor trimming/drilling may be required on some applications
• Dump pipe: 44mm dump pipe required (available separately)
• EGR delete: Recommended for best fitment and performance
• Oil priming: Always prime turbo with supplied Liqui Moly before first start
• ECU tuning: Recommended for safe boost, rail pressure and fueling
• Professional installation recommended

Get the most from your Mini F55:

• Quality intercooler — handle up to 35 PSI boost
• 3" exhaust system — maximize flow and sound
• Boost & EGT monitoring — accurate gauges essential
• Clean oil feed/return — ensure turbo longevity
• EGR delete — improves fitment and performance
• ECU remap — unlock full potential safely

• 💸 Buy Now, Pay Later: Afterpay, Humm, Klarna & Zip available
• ✈️ Free Express Shipping Australia-Wide
• 📦 Fast, trackable dispatch from Australian warehouse

For off-road / competition use only. EGR removal and turbo modifications may affect compliance. Check local regulations before purchase.

Q: Is this a direct bolt-on for all 4JJ1 models?

A: Fitment suits common 4JJ1 applications but usually requires minor manifold work, a 44mm dump pipe and EGR delete.

Q: Do I need a tune after installing the Mini F55?

A: Yes — an ECU remap is recommended to set safe boost, rail pressure and fueling for best results.

Q: What boost should I run?

A: The turbo is capable of up to 35 PSI. Your tuner will set safe targets based on injectors, intercooler and usage.

Q: Will it pass a roadworthy with EGR deleted?

A: No — EGR removal may not be legal in your region. This kit is sold for off-road/competition use only where permitted.

Q: What else should I upgrade?

A: We recommend a quality intercooler, 3" exhaust, accurate boost/EGT monitoring, and ensuring oil feed/return are clean. Always prime the turbo with oil before first start.

Q: What makes the "StuStuStu" sound?

A: The iconic sound comes from the gated wastegate actuator combined with the turbo's compressor design. It's the signature F55 whistle and chatter that enthusiasts love.

Q: Is this suitable for daily driving?

A: Yes — when properly tuned, the Mini F55 offers a great balance of performance and drivability for street and touring use.

Q: What's included in the kit?

A: Complete kit includes the R31-R V2 turbo, gaskets, oil feed/return fittings, and Liqui Moly turbo pre-lube.