Flex
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Direct-fit Flex 44mm VNT turbo upgrade for Toyota 1KD-FTV engines
The Flex 44mm VNT turbo is a true drop-in upgrade for Toyota 1KD-FTV Hilux and Prado engines. Designed to retain OEM exhaust, intercooler piping, and oil/coolant lines, this 44mm variable nozzle turbo delivers improved airflow and boost control without altering factory fitment or drivability.
✅ Direct bolt-on fitment: Matches factory manifold, dump, intercooler piping and OEM oil/coolant lines.
Actuator not included — reuse your original or add one here:
Studs/nuts not included — reuse originals or add our kit:
Get the most from your Flex 44mm VNT:
For off-road / competition use only. Turbo modifications may affect compliance. Check local regulations before purchase.
Q: Is this a direct bolt-on for my 1KD Hilux or Prado?
A: Yes — this Flex 44mm VNT turbo is a true drop-in unit that retains factory manifold, dump, piping and OEM oil/coolant lines. No cutting or modifications required.
Q: Do I need to buy a new actuator?
A: No — your OEM actuator can be reused. Optional replacement actuators are available if required (quick-add buttons provided above).
Q: How much boost can it safely run?
A: With suitable mods and correct tuning, approximately 28–35 psi. Always confirm targets with your tuner.
Q: What power can I expect?
A: Results vary by setup, but many builds achieve around 240–280+ rwhp with supporting modifications (Modified injectors, FMIC, exhaust, tune).
Q: What gaskets are included?
A: Two turbo gaskets plus oil and coolant feed/return gaskets are supplied. Studs and nuts are not included (reuse originals or purchase via button above).
Q: Do I need a tune?
A: Yes (highly recommended) — ECU tuning is required to safely control boost, fueling, and timing with the upgraded turbo.
Q: Will this fit my factory exhaust manifold?
A: Yes — the Flex 44mm VNT uses the same mounting points and flange as the factory turbo. Direct bolt-on.
Flex 44mm VNT turbo. True drop-in upgrade. Factory fitment. 28-35 psi capable. Professional tune required.
Disclaimer: Common Rail Cowboys is not affiliated with Toyota Motor Corporation or FLEX Thailand. Installation should be performed by a qualified technician. Proper tuning and supporting modifications are the buyer's responsibility.
