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Flex Mini F55 Low-Mount Kit | N70 Hilux 1KD

Flex Mini F55 Low-Mount Kit | N70 Hilux 1KD

Regular price $2,859.00 NZD
Regular price Sale price $2,859.00 NZD
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Flex Pro R31-R V2 – Mini F55 Low-Mount Kit – N70 Hilux

Signature Mini F55 Sound | Fast Spool | 30-35 PSI Boost

⚑ Flex Ultimate Performance Mini F55 Low-Mount πŸ”₯ Stu Stu Stu Sound πŸ”Š πŸ’³ Afterpay β€’ Humm β€’ Klarna β€’ Zip 🚚 Free Express Shipping AU

Signature Mini F55 Sound | Fast Spool | Built for Power

Elevate your 1KD N70 diesel build with the FLEX PRO R31-R V2 Turbo Low-Mount Kit, known as the Mini F55. This 44mm gated turbo delivers rapid low–mid RPM spool, sharp response, and the iconic F55 whistle / "Stu Stu Stu" soundβ€”ideal for daily, touring, and performance builds.


βš™οΈ Turbo Specifications
  • Compressor wheel: 44.5mm, 6-blade
  • Intake mouth: 79.5mm
  • Turbine wheel: 46mm, 12-blade
  • Rear flange: RHF4 D-MAX flange
  • Manifold side flange: 5-bolt multi-fit
  • Boost rating: up to 35 PSI
  • Wastegate actuator: fully assembled & pre-set (35 PSI)
  • Sound: F55-style whistle & Mini "Stu Stu Stu" chatter

πŸ”§ Vehicle Compatibility
  • Toyota Hilux N70 (2005–2015) – 1KD-FTV

⚠️ FABRICATION REQUIRED: Dump pipe must be custom fabricated to suit OEM, aftermarket or 3" exhausts. Custom intake required, among other modifications.


πŸ“¦ What's Included

Complete low-mount turbo kit:

  • FLEX PRO R31-R V2 Turbo (Mini F55)
  • Laser-cut stainless actuator bracket
  • 35 PSI wastegate actuator (pre-set)
  • Turbo re-oriented for 1KD low-mount installation
  • FLEX dump pipe flange
  • Mounting bolts
  • Dump pipe studs and nuts
  • Turbo gaskets
  • Oil feed line & oil return line and fittings
  • Liqui Moly pre-lube

More or less everything you need for an easy installation (intake and dump pipe fabrication required).

We have coolant lines available for this turbo kit here.


πŸ’ͺ Why Choose Mini F55 Low-Mount?
  • Iconic "Stu Stu Stu" sound – Mini F55 whistle and spool
  • Fast-spooling gated turbo – near-instant boost response
  • Built for reliable power – 35 PSI rating
  • Street & touring friendly – power, reliability and sound
  • Low-mount specific – factory manifold compatible
  • Complete kit – includes all essential hardware

πŸ› οΈ Installation Notes
  • Custom dump pipe fabrication required – suit OEM or 3" exhaust
  • Custom intake required – 79.5mm intake mouth
  • Turbo re-oriented for 1KD low-mount – bolt to factory manifold location
  • Oil priming: Always use supplied Liqui Moly pre-lube before first start
  • ECU tuning: Professional remap highly recommended
  • Professional installation recommended

πŸ’‘ Recommended Supporting Mods

Get the most from your Mini F55 Low-Mount:

  • Custom dump pipe β€” required (suit OEM or 3" exhaust)
  • Custom intake β€” required (79.5mm intake mouth)
  • Quality intercooler β€” handle up to 35 PSI boost
  • 3" exhaust system β€” maximize flow and enhance sound
  • Boost & EGT monitoring β€” accurate gauges essential
  • Clean oil feed/return β€” ensure turbo longevity
  • ECU remap β€” unlock full potential safely

πŸ’³ Payment & Shipping Options
  • πŸ’Έ Buy Now, Pay Later: Afterpay, Humm, Klarna & Zip available
  • ✈️ Free Express Shipping Australia-Wide
  • πŸ“¦ Fast, trackable dispatch from Australian warehouse

⚠️ Legal Notice

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


❓ Frequently Asked Questions

Q: Do I need custom fabrication?

A: Yes β€” you'll need a custom dump pipe and intake to suit your vehicle/exhaust (OEM or 3").

Q: Is tuning required?

A: A professional ECU remap is highly recommended to safely control boost, fueling, and timing.

Q: What boost can it safely run?

A: Rated to around 35 PSI with correct fueling and tuning. Your tuner will set safe targets based on your setup.

Q: Will it bolt to my factory manifold?

A: Yes β€” re-oriented specifically for 1KD low-mount applications. Bolts to factory manifold location.

Q: Is this road-legal?

A: Sold for off-road/competition use where permitted. Check local regulations before purchase.

Q: What makes the "Stu Stu Stu" sound?

A: The iconic sound comes from the gated wastegate actuator combined with the turbo's compressor design. It's the signature Mini F55 whistle and chatter.

Q: Is this suitable for daily driving?

A: Yes β€” when properly tuned, the Mini F55 offers a great balance of performance and drivability for street and touring use.

Q: What's the difference between this and the 4JJ1 Mini F55?

A: This version is specifically re-oriented for 1KD N70 Hilux low-mount applications. The 4JJ1 version has different orientation and fitment.

Q: What's included in the kit?

A: Complete kit includes turbo, actuator bracket, 35 PSI wastegate actuator, dump pipe flange, gaskets, oil feed/return lines, Liqui Moly pre-lube, and all mounting hardware.


⚑ GET THE ICONIC F55 SOUND ON YOUR N70

FLEX Mini F55 low-mount kit. Stu Stu Stu chatter. Fast spool. 35 PSI capable. Complete kit with pre-lube. 1KD N70 Hilux specific.

Disclaimer: Common Rail Cowboys is not affiliated with Toyota Motor Corporation or FLEX Thailand. Installation should be performed by a qualified technician. Custom fabrication, proper tuning and supporting modifications are the buyer's responsibility.

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