MCR
4JJ1 +50 Nozzles - MCR - DPF Model
4JJ1 +50 Nozzles - MCR - DPF Model
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$884.00 AUD
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$884.00 AUD
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4JJ1 DPF +50 Nozzle – M-BLUEPOWER (MCR Japan)
🚚 Free Express AU 💳 Afterpay • Humm • Klarna • Zip ⚡ Performance Nozzles
High-flow M-BLUEPOWER +50 nozzles for 4JJ1 DPF engines. Japanese-engineered by MCR for builds chasing clean fuel delivery, stable EGTs and reliable gains with correct tuning.
🧩 Overview
These +50% flow nozzles are built for late-model 4JJ1 DPF platforms needing more headroom for towing, off-road torque or high-output turbo builds. Precision machining gives tight spray patterns and stable return rates under high load.
🔧 Suits / Compatibility
- Isuzu D-MAX 4JJ1 (DPF)
- Isuzu MU-X 4JJ1 (DPF)
Suitable for both DPF-fitted and DPF-deleted setups* with the correct tune.
✨ Features
- +50% fuel delivery capacity (with correct calibration)
- Japanese MCR M-BLUEPOWER machining & QC
- Supports ~50 PSI boost — stock or upgraded turbo
- Improves fuelling headroom for torque & top-end power
- Ideal for towing, off-road and performance applications
📦 What’s Included
- 1 × set of M-BLUEPOWER +50 high-flow nozzles
Injectors must be disassembled, shimmed and flow-matched by a diesel specialist during install.
🛠 Install Notes
- Requires injector disassembly and setup by a diesel specialist
- ECU remap required to scale fuel, rail pressure and timing
- Intercooler, intake, exhaust and turbo upgrades often needed
- Monitor AFR and EGT on first tune session
⚠ Important Notes
- High-flow performance part — NOT a stock replacement nozzle
- DPF systems may restrict ultimate output; consult your tuner
- *Emissions laws vary — off-road/competition use where permitted
💳 Payment & 🚚 Shipping
- Afterpay, Humm, Klarna & Zip available
- Free Express Shipping Australia-Wide — same/next-day dispatch when in stock
- Back-order lead time: typically 1.5–3 weeks
❓ FAQs
Will these nozzles work with the DPF still fitted?
Yes. They suit DPF-equipped engines, but correct tuning is essential to manage EGT and fuel delivery.
How much extra fuel flow do they add?
They provide approximately up to +50% flow compared to stock, giving the headroom needed for bigger turbo setups.
What supporting mods do I need?
An upgraded turbo, intercooler, exhaust and a professional ECU remap are strongly recommended to safely use the extra flow.
Are these genuine MCR M-BLUEPOWER nozzles?
Yes — manufactured in Japan under MCR’s strict quality control standards.
Can I fit these myself?
Yes, however, nozzle fitting can require injector disassembly, shimming and calibration — best practice is to use a diesel specialist.
