Flex R31 Pro V2 44mm Turbo - 4JJ1 / 1KD

Engine
$1,620.00
$1,620.00
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Flex V2 “Mini F55” 44mm Gated Turbo – 4JJ1 / 1KD

Want the sound and response of a big-frame turbo without sacrificing drivability? The Flex V2 “Mini F55” 44mm Gated Turbo is built to deliver exactly that.

Designed to suit 4JJ1 and 1KD engines, this high-performance upgrade supports up to 35psi and is efficient to around 250HP with the right supporting modifications and tuning. It’s the perfect balance between spool speed, mid-range torque, and top-end performance, making it ideal for daily drivers, tourers, and weekend warriors alike.

What sets the Mini F55 apart is its specially designed front housing, engineered to increase spool sound and volume, giving you that aggressive F55-style note without stepping into a larger-frame setup.

Key Features

  • 44mm gated turbo
  • Supports up to 35 PSI
  • Efficient to ~250HP (supporting mods required)
  • Enhanced spool sound & turbo note
  • Strong mid-range torque
  • Direct bolt-on upgrade

Vehicle Fitment

This turbo suits:

  • Holden Rodeo RA7 – 2007–2008 – 4JJ1

  • Holden Colorado RC – 2008–2012 – 4JJ1

  • Isuzu D-MAX – 2008–2021 – 4JJ1

  • Toyota Hilux N70 – 2005–2015 – 1KD (KUN26)

Flex R31 Pro V2 44mm Turbo - 4JJ1 / 1KD

$1,620.00