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Common Rail Cowboys

FLEX Monoblock DMAX / MUX Intercooler - (2012-2019)

FLEX Monoblock DMAX / MUX Intercooler - (2012-2019)

$1,620.00 NZD
$1,620.00 NZD
Sale Sold out
Tax included in Australia, Shipping calculated at checkout.

FLEX Intercooler – Isuzu D-MAX / MU-X (2012–2020)

 

✅ Drop-in Replacement | ✅ Monoblock Core | ✅ Supports F44 & F55 Turbos | ✅ Free Express Shipping AU-Wide

Built for Cool, Consistent Power

The FLEX Monoblock Intercooler for Isuzu D-MAX / MU-X (2012–2020) is a bolt-in, high-performance upgrade that replaces the restrictive factory unit. Designed to keep charge-air temps low on tuned 4JJ1 setups, it delivers stronger, more repeatable power on road, tow, or track—without cutting or welding.

🔧 Key Benefits
  • Massive surface area vs. factory for superior heat rejection (approx. 605 × 255 × 65 mm core)
  • Monoblock construction for durability and efficient airflow
  • Supports high-boost builds – tested to 100 psi
  • Perfect match for F44 & F55 turbos and other aftermarket setups
  • No fabrication required – mounts to the factory location
  • Factory pipe compatibility – suits 2.5" inlet & outlet
📐 Specifications
Vehicle Platform Isuzu D-MAX / MU-X (Gen 2) 2012–2020
Engine 4JJ1
Core Size (approx.) 605 × 255 × 65 mm
Boost Capability Up to 100 psi
Inlet / Outlet 2.5" (factory pipes)
Install Direct bolt-in—no cutting, drilling or welding
🚙 Compatible Vehicles
  • Isuzu D-MAX 2012–2020 (4JJ1)
  • Isuzu MU-X 2013–2020 (4JJ1)
📦 What’s Included
  • FLEX Monoblock Intercooler Assembly
  • Uses factory mounting hardware (direct fit)
📝 Notes

Designed to work with the OEM 2.5" intercooler piping. If you’re running custom piping, confirm coupler sizing before install. Performance gains depend on tune, turbo, ambient temps, and load.

🤠 Why Buy from Common Rail Cowboys
  • Free Express Shipping Australia-Wide
  • Afterpay / Humm / Klarna / Zip available at checkout
  • QLD-based diesel specialists—real support for real builds

Frequently Asked Questions

Will this work with my F44 or F55 turbo?
Yes—this intercooler is designed to support popular D-MAX/MU-X upgrade paths including Low Mount F44 and F55 turbos, keeping IATs in check under sustained load.
Do I need to modify anything?
No. It fits the factory location and interfaces with the OEM 2.5" intercooler pipes. Always test-fit and tighten all clamps after heat-cycling.
How much power will I gain?
Intercoolers don’t add power by themselves—they enable your tune and turbo to hold power longer by controlling intake temps. Expect improved consistency when towing or in hot conditions.

Availability: Generally in stock; if sold out, allow ~1–3 weeks for dispatch. For urgent timelines, message us before ordering.

Ready to keep EGTs down and power up?
Add the FLEX Intercooler to cart now—Free Express Shipping included.

 

 

 

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