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Dmax/Mux 4JJ1 Intake Pipe - 3 Inch Upgrade - 2012-2016

Dmax/Mux 4JJ1 Intake Pipe - 3 Inch Upgrade - 2012-2016

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Regular price $297.96 AUD
Regular price Sale price $297.96 AUD
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4JJ1 Intake Pipe – 3 Inch Upgrade (2012–2016)

Thai-Made 3" Pie-Cut Intake | Improved Airflow | Reduced Restriction

⚑ Flex Ultimate Performance 3" Performance Intake πŸ”₯ Thai-Made Fabrication πŸ‡ΉπŸ‡­ Heavy-Duty T-Bolt Clamps βœ… πŸ’³ Afterpay β€’ Humm β€’ Klarna β€’ Zip 🚚 Free Express Shipping AU

Thai-made 3" pie-cut intake pipe upgrade for 4JJ1 D-MAX and MU-X engines. Designed to improve airflow, reduce restriction, and clean up the engine bay β€” whether you're running a stock turbo or an upgraded setup.

Built for reliability, performance, and proper fitment


🧩 Product Overview

This 3-inch custom pie-cut intake pipe is fabricated in Thailand using proven diesel performance designs. The larger diameter improves intake flow and turbo response while maintaining strong coupler retention and engine-bay clearance.

Key benefits:

  • Increased airflow – 3" diameter reduces restriction
  • Improved turbo response – better flow path to turbo inlet
  • Clean engine bay appearance – professional pie-cut fabrication
  • Quality construction – Thai-made with proper materials

πŸ“ Technical Specifications
  • Diameter: 3 inch (76mm)
  • Construction: Pie-cut design
  • Origin: Thai-made fabrication
  • Clamps: 4Γ— heavy-duty T-bolt clamps included
  • Couplers: Blue silicone (3.25" β†’ 3.0" and 3.0" β†’ 2.75")
  • Finish: Professional diesel performance spec

πŸ”§ Vehicle Compatibility
  • Isuzu D-MAX – 4JJ1-TC (2006–2012, pre-DPF)
  • Isuzu MU-X – 4JJ1-TC (2012, pre-DPF)

⚠️ DOES NOT SUIT: Models with the oil filter mounted high (unless modified/cut).

⚠️ IMPORTANT: Please confirm fitment before ordering. Contact us with your vehicle details if unsure.


πŸ“¦ What's Included
  • βœ… Thai-spec 3" pie-cut intake pipe
  • βœ… 4Γ— heavy-duty T-bolt clamps
  • βœ… Blue silicone couplers:
    • 3.25" β†’ 3.0" reducer
    • 3.0" β†’ 2.75" reducer

Complete kit ready for installation. Professional-grade components for reliable performance.


πŸ› οΈ Installation Notes

Professional installation recommended for best results.

Installation tips:

  • Ensure correct alignment to prevent boost leaks
  • Torque T-bolt clamps evenly for proper seal
  • Check clearances – verify no contact with hood or other components
  • Not suitable for vehicles with body lifts – clearance issues may occur
  • Pressure test after installation – verify no leaks at all connections

⚠️ Note: Does NOT suit models with high-mounted oil filter unless pipe is modified or cut.


πŸ’‘ Perfect For β€” Recommended Applications

Ideal for:

  • Stock turbo setups – reduce intake restriction
  • Upgraded turbo builds – support increased airflow demands
  • Engine bay aesthetics – clean, professional appearance
  • Performance tuning – complement other airflow upgrades

Pairs well with:

  • Flex Mini F55 or F55 Boost X turbo upgrades
  • Front-mount intercooler
  • High-flow air filter or intake system
  • ECU tuning for optimized air/fuel ratios

πŸ’³ Payment & Shipping Options
  • πŸ’Έ Buy Now, Pay Later: Afterpay, Humm, Klarna & Zip available
  • ✈️ Free Express Shipping Australia-Wide
  • πŸ“¦ Typically ships within 1–2 business days

⚠️ Legal Notice

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


❓ Frequently Asked Questions

Q: Is this a direct replacement for the factory intake pipe?

A: Yes β€” designed to replace the factory intake pipe with a larger 3" diameter for improved airflow and reduced restriction.

Q: Will this work with my stock turbo?

A: Yes β€” works with both stock and upgraded turbos. Reduces intake restriction on any setup.

Q: Does this fit models with high-mounted oil filters?

A: No β€” this pipe does NOT suit models with high-mounted oil filters unless modified/cut. Check your engine bay configuration before ordering.

Q: Will this fit my vehicle with a body lift?

A: Not suitable for vehicles with body lifts due to clearance issues. Body lifts can cause interference with the hood - it may work with different couplings - untested.

Q: What's included in the kit?

A: Complete kit includes: 3" pie-cut intake pipe, 4Γ— heavy-duty T-bolt clamps, and blue silicone couplers (3.25" β†’ 3.0" and 3.0" β†’ 2.75").

Q: Do I need to tune my vehicle after installing this?

A: Not mandatory for intake pipe alone, but ECU tuning can optimize performance when combined with other airflow upgrades.

Q: What's the quality like compared to eBay/AliExpress pipes?

A: This is proper Thai-made fabrication with quality materials and correct fitment β€” not thin, poorly-made eBay junk.

Q: Can I install this myself?

A: If you're mechanically capable, yes. However, professional installation is recommended to ensure proper fitment and no leaks.

Q: How do I confirm fitment for my vehicle?

A: Contact us with your vehicle year, model, and engine configuration. We can verify fitment before you order.


⚑ UPGRADE AIRFLOW, SHARPEN RESPONSE

Flex 3" intake pipe. Thai-made pie-cut design. Reduced restriction. Improved turbo response. Heavy-duty T-bolt clamps. Complete kit ready to install.

Disclaimer: Common Rail Cowboys is not affiliated with Isuzu Motors or FLEX Thailand. Installation should be performed by a qualified technician. Proper installation and fitment verification are the buyer's responsibility.

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