• Compressor wheel: 48.5mm (6/6)
• Turbine wheel: 48.5mm (11-blade)
• Inlet size: 3.25" (larger than OEM)
• Boost capability: ~35–40 psi (build/tune dependent)
• Power potential: up to ~300 rwhp with tuning & supporting mods

• Isuzu D-MAX – 4JJ3-TCX (2020–on)
• Isuzu MU-X – 4JJ3-TCX (2020–on)
• Mazda BT-50 – 4JJ3-TCX (2020–on)

✅ Direct bolt-on: Mounts to 4JJ3 manifold. Intake inlet is 3.25" — adapter/coupler required to suit your intake pipe.

• FLEX 4JJ3 F55 Turbocharger
• Wastegate actuator
• Turbo inlet gasket
• Oil drain tube & gasket
• Oil feed line with turbo feed bolt

• Oil drain: Trim factory drain and join to supplied drain tube with the included oil-rated hose
• Intake: 3.25" turbo inlet requires adapter/coupler for your intake pipe
• Tuning required to achieve safe fuelling and EGT control
• DPF-equipped vehicles may need custom dump/exhaust adaptations
• Other supporting mods may be required to fully utilise this turbo
• Professional installation recommended

Get the most from your FLEX F55 Turbo:

• Front-mount intercooler — handle 35-40 psi boost
• High-flow intake — maximize airflow to 3.25" inlet
• 3" exhaust system — reduce backpressure
• Quality monitoring — boost gauge, EGT gauge
• Injectors/fuel system — as required for power goal
• ECU remap — mandatory for safe operation

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For off-road / competition use only. Turbo modifications may affect compliance. Check local regulations before purchase.

Q: Do I need an ECU tune after fitting this turbo?

A: Yes. A professional remap is strongly recommended to set safe boost, rail pressure and fuelling, and to unlock performance safely. This is not optional.

Q: Will this bolt to the factory manifold and lines?

A: Yes, it's designed for the 4JJ3 manifold pattern. The turbo inlet is larger (3.25"), so you'll need an adapter/coupler for your intake pipe.

Q: What supporting mods do you recommend?

A: Front-mount intercooler, high-flow intake and exhaust, quality monitoring (boost/EGT), and injectors/fuel system as required for your power goal.

Q: How much boost should I run?

A: Typical tuned builds run ~35 psi. Higher targets up to ~40 psi are possible with correct hardware and careful tuning—always follow your tuner's advice.

Q: Is this suitable for daily driving and towing?

A: Yes—when tuned correctly and paired with the right cooling and exhaust, it offers responsive midrange and reliable performance for daily use and towing.

Q: What's the difference between this and the stock turbo?

A: The F55 features larger compressor/turbine wheels (48.5mm vs stock), 3.25" inlet (vs smaller stock), and can handle significantly more boost (35-40 psi vs ~25 psi stock).

Q: Do I need to modify my exhaust?

A: DPF-equipped vehicles may need custom dump/exhaust adaptations. Non-DPF vehicles typically bolt on with minimal modifications. Consult your installer.