• 4JJ1 +30 Nozzles - MCR - Pre DPF
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MCR

4JJ1 +50 Nozzles - MCR - DPF Model

4JJ1 +50 Nozzles - MCR - DPF Model

$850.00 AUD
$850.00 AUD
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4JJ1 DPF +50 Nozzle – M-BLUEPOWER: Precision Performance Upgrade

Enhance your 4JJ1 DPF engine’s performance with M-BLUEPOWER +50 Nozzles by MCR — engineered in Japan for serious diesel gains.

🧩 Product Overview

Designed to suit both DPF-equipped and DPF-deleted* 4JJ1 engines, these nozzles significantly increase fuel flow to support higher horsepower and torque. Ideal for off-road, towing and performance builds when paired with the correct tune and supporting mods.

🚀 Product Highlights
  • Perfect for 4JJ1 DPF engines — purpose-made fitment
  • +50% injector equivalent — up to 50% more fuel flow vs. stock (with tuning)
  • Boost capable to ~50 PSI — suits stock or upgraded turbos
  • Japanese engineering — precision, reliability and durability under high load
🔧 Fits
  • Isuzu D-MAX — 4JJ1 with DPF
  • Isuzu MU-X — 4JJ1 with DPF
🛠️ Install & Tuning Notes
  • Professional installation recommended: Fit, flow-test and shim injectors with a diesel specialist.
  • ECU remap required: Calibrate fuel delivery, rail pressure and EGTs for safe gains.
  • Supporting mods: Intercooler, exhaust, intake and turbo upgrades may be required to reach power goals.
  • DPF systems: Some high-output setups may require exhaust changes. Emissions tampering may be illegal on public roads; intended for off-road/competition use where permitted.
💳 Payment & 🚚 Shipping
  • 💳 Afterpay, Humm, Klarna & Zip available
  • ✈️ Free Express Shipping Australia-Wide — fast, trackable dispatch (usually same or next business day). If out of stock, 1.5–3 week lead time.

*Compliance note: Use on public roads must comply with local emissions laws. Off-road/competition use only where permitted.

Frequently Asked Questions

Do these nozzles work with the DPF still fitted?
Yes. They are designed for DPF-equipped engines, but tuning is required to optimise fuelling while keeping EGTs safe.
How much more fuel flow do they provide?
They deliver approximately +50% more flow compared to stock nozzles, enabling higher horsepower and torque potential.
Do I need supporting modifications?
Yes. To take advantage of the extra fuelling, an upgraded turbo, intercooler, exhaust and ECU remap are strongly recommended.
Are these genuine Japanese MCR parts?
Yes. These M-BLUEPOWER nozzles are manufactured in Japan under MCR’s strict quality control for reliability under heavy load.
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