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
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Massive surface area vs. factory for superior heat rejection (approx. 605 × 255 × 65 mm core)
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Monoblock construction for durability and efficient airflow
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Supports high-boost builds – tested to 100 psi
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Perfect match for F44 & F55 turbos and other aftermarket setups
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No fabrication required – mounts to the factory location
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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
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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 re-torque clamps after a heat cycle.
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.
