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Flex

Flex F55 Low Mount Turbo | 1KD | 300hp+ | 50 PSI Rated

Flex F55 Low Mount Turbo | 1KD | 300hp+ | 50 PSI Rated

Regular price $2,865.00 NZD
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Flex F55 Low Mount Turbo: Toyota 1KD-FTV

Bolts to the Factory Manifold | 300hp+ Capable | 50 PSI Rated

Flex Pro Bolts to Factory Manifold 50 PSI Rated 300hp+ Capable Fabrication Required Afterpay, Humm, Klarna, Zip Free Express Shipping AU

The Flex F55 Low Mount sits in the factory turbo position and bolts to the factory 1KD exhaust manifold. No aftermarket manifold. It is rated to 50 psi and capable of 300hp+ with the fuel system, supporting mods and tune to match.

It is not a bolt-on. The dump side takes a 44mm flange, so you need a 44mm rear flange welded to your dump pipe, or a PPRC 44mm dump pipe modified to suit your exhaust. A front mount intercooler, an upgraded air box and a custom intake pipe are required. Other parts, modifications and tuning are required. If you want a drop-in, look at the Flex 44mm VNT instead.


What It Does
  • Low mount fitment. Sits in the factory turbo position and bolts to the factory 1KD manifold. No aftermarket manifold required.
  • Rated to 50 psi. Headroom for serious boost targets, set by your tuner to suit the rest of the build.
  • 300hp+ capable. With injectors, fuel system, front mount intercooler, exhaust and appropriate tuning to match.
  • Wastegated. Boost is controlled by a wastegate actuator, not the factory VNT vanes and stepper motor.

Vehicle Compatibility
  • Toyota Hilux N70 (2005 to 2015) - 1KD-FTV 3.0L
  • Toyota LandCruiser Prado 120 (2003 to 2009) - 1KD-FTV 3.0L
  • Toyota LandCruiser Prado 150 (2009 to 2015) - 1KD-FTV 3.0L

Not sure? Send us your VIN or State and Rego and we will confirm before you order.


What Is Included
  • 1 x Flex F55 turbocharger, 1KD low mount configuration
  • Wastegate actuator and bracket
  • Oil lines
  • Gaskets

Not included: dump pipe, 44mm rear flange, front mount intercooler, upgraded air box, intake pipe, VNT simulator and ECU remap. See Fitting Notes below.


Fitting Notes
  • Fabrication required. The dump side takes a 44mm flange. Weld a 44mm rear flange to your dump pipe, or use the PPRC 44mm low mount dump pipe and modify it to suit your exhaust.
  • Front mount intercooler required. For the N70 we run the HPD Series 2 intercooler kit.
  • Upgraded air box and custom intake pipe required. The intake pipe needs to be fabricated to suit your setup. For the N70 we stock the Phat Bars airbox.
  • A custom ECU remap is required. Do not run this turbo on a factory tune.
  • VNT simulator. This is a wastegated turbo, so the factory VNT stepper motor is no longer used. Fit a VNT simulator to keep the ECU happy.
  • Other parts and modifications are required to complete the install. Not sure what your setup needs? Message us before you order.
  • Fuel system first. Make sure injectors, SCV and pump are healthy before tuning for more boost.
  • Prime the turbo with clean oil before first start.
  • Professional installation recommended.

Recommended Accessories

Dump side: pick one. Weld the flange to your own dump pipe, or modify the PPRC pipe to suit your exhaust.

Add 44mm Rear FlangeAdd PPRC Dump Pipe (N70)

Required to run it.

Add HPD Intercooler Kit (N70)Add 1KD VNT SimulatorAdd Phat Bars Airbox (N70)

Holding the power: NPC x CRC 850Nm clutch and billet flywheel (Hilux N70).

Add Clutch, With Bypass LineAdd Clutch, Without Bypass Line

Fuel to match: 1KD Injector Upgrade, +30% and +50%. Pick your injector code on that listing.


Stock and Lead Time

Check the stock indicator near the Add to Cart button. If it shows Available to Order, message us for a current ETA before you order.


Shipping and Payment
  • Free express shipping Australia wide. Full tracking included.
  • Buy now, pay later. Afterpay, Humm, Klarna and Zip.
  • All major credit cards accepted.

Frequently Asked Questions

Does it bolt to the factory manifold?
Yes. This is the low mount version for the 1KD. It bolts to the factory 1KD exhaust manifold in the factory turbo position. No aftermarket manifold required.

So is it a bolt-on?
No. The manifold side bolts up, the rest does not. The dump side needs a 44mm rear flange welded to your dump pipe, or a PPRC 44mm dump pipe modified to suit your exhaust. A front mount intercooler, an upgraded air box and a custom intake pipe are required. Other parts, modifications and tuning are required.

What is in the box?
The turbo, wastegate actuator and bracket, oil lines and gaskets. Dump pipe, 44mm rear flange, intercooler, air box, intake pipe, VNT simulator and tune are not included.

Do I need a tune?
Yes. A custom ECU remap is required. Do not run this turbo on a factory tune.

Will it make 300hp out of the box?
No. 300hp+ is what the turbo is capable of supporting with injectors, fuel system, front mount intercooler, exhaust and tune to match. The turbo is one part of that build, not the whole build.

How much boost can I run?
The turbo is rated to 50 psi. What you actually run is up to your tuner and the rest of your setup.

Do I need a VNT simulator?
Yes. It is a wastegated turbo, so the factory VNT stepper motor is no longer used. A VNT simulator keeps the ECU happy.

Does it fit the Prado?
Yes. It suits the 1KD-FTV in the Prado 120 (2003 to 2009) and Prado 150 (2009 to 2015), as well as the Hilux N70 (2005 to 2015).

F55 low mount or the Flex 44mm VNT?
The 44mm VNT is a drop-in and the simpler path for towing and touring. The F55 is for builds chasing bigger numbers. Message us with your goals and we will point you at the right one.

F55 AIRFLOW. FACTORY MANIFOLD.

Flex F55 low mount turbo for the 1KD-FTV. Rated to 50 psi, 300hp+ capable with supporting mods and tune. Fabrication required. Free express shipping Australia wide.

Disclaimer: Common Rail Cowboys is not affiliated with Toyota Motor Corporation. Flex is a trademark of its respective owner. For off-road and competition use. Fabrication, other parts, modifications and a custom ECU remap are required. Installation should be carried out by a competent person. Power and boost figures depend on supporting modifications and tuning. Modifications can affect manufacturer warranty and compliance, check local regulations. Confirming fitment for your vehicle is the buyer's responsibility.

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