Defender 300 Tdi VGT Uprated Turbocharger

Rated 5.00 out of 5 based on 2 customer ratings
(2 customer reviews)

£925.00 ex. vat

Availability: 2-3 days

SKU: ASE04 Category:

Worldwide Delivery

Calculate shipping in your basket


Direct Replacement Variable Vane or VGT Turbo for Tdi. Kit includes new oil feed pipe and filter and gaskets. You will need to supply good quality oil of the correct grade. Inlet / exhaust gasket available on request.

Standard, fixed geometry turbo design is always a compromise. Engines need a small turbo for fast spool-up and improved throttle response (reduced turbo-lag) but the small compressor size does not allow enough flow for anything beyond mid-range revs. So a larger turbo is required for mid-range and higher revs and increased flow, but this leads to increased lag at the low end.

The VGT – Variable Geometry Turbocharger acts like a small turbo initially then alters geometry to increase flow in higher revs, giving an improved spread of power across the rev range. Tdi VGT units use a special actuator operated by boost pressure to control the vane angle.

The VGT unit is designed to be a direct replacement for the original requiring no mods to the car.

Power is improved throughout the rev range but particularly in the lower and mid-range revs.

Turbo lag is reduced and compliments any other tuning such as an uprated intercooler.

The kit is supplied complete with all gaskets required to complete the installation.

To get the best from the turbo it is beneficial to adjust the fuel settings however, improvements in driveability will be seen even with standard tuning assuming a healthy engine..

The following must be considered prior to installing an after-market turbo charger –

An uprated Intercooler must be used along with – Fresh oil, filter, feed and drain connections. If the engine has been rebuilt or the turbo has previously failed, at least two complete engine flush processes must be undertaken. Oil pressure must be checked and verified as correct and the original cause of failure ascertained and rectified.

The aftermarket turbo charger must be installed by a professional mechanic following the recommended procedures supplied.

Non-restrictive intake system – we advise against the use of a raised or nonstandard air intake.  Please note – any restriction to the air intake on performance turbos will invalidate warranty. This can include raised air intakes.

Correctly sized exhaust system – either restrictive or too little back pressure can cause problems with uprated turbos and can invalidate warranty.

Please also see our listing for improved flow intake hoses and exhaust components.

Note that the turbo is likely to sound different to standard units

Turbo Technics offer a limited warranty of 3 months. Please be aware that Turbo Technics warranty is based on the unit being returned at your cost for inspection. Full terms available on request.


Additional information

Weight 38.6 lbs

Model/ Series

Intended Use


2 reviews for Defender 300 Tdi VGT Uprated Turbocharger

  1. Rated 5 out of 5

    Luca Salvi (verified owner)

    Turbina stupenda, ottimo pezzo e si monta senza fare altre modifiche.
    Un po’ più complicata è la regolazione, ma va fatta da un meccanico o da un pompista.
    (Gorgeous Turbo, great part and mounts without making any other changes. A little more complicated is the adjustment, but it is done by a mechanic or pump.)

  2. Rated 5 out of 5

    Rafael Batiati

    Hi Andrew!
    Just a update: I finally have installed the turbocharger this week, it’s amazing! There is no turbo lag anymore, very cool. I had to make some minor adjustments to fit it on Brazilian 300tdi, and I would like to share with you what I learned, in order you can advise further buyers from Brazil:

    – We have a different oil feed pipe that uses a banjo bolt on both sides
    – The exhaust connection is the same, but about to 10cm shorter; It was easy to solve welding a pipe to make it longer.
    – Our 300tdi is not fitted with EGT, so the blanking plate ERR4698 is required
    – Finally, as we already knew, the exhaust manifold is very different, and the “bull horns” are required to be purchased together.

    I’m very satisfied, and I hope you could sell many others to Brazil, I will certainly recommend your products. Thank you.

    Vehicle: Defender 300 Tdi / International Maxion HSD 2.5

Add a review

Your email address will not be published. Required fields are marked *

3 Month Warranty

If your product fails due to a manufacturing defect we will repair or replace it without charge, at our discretion. Only original, unaltered and unmodified materials and workmanship are covered by this policy.

This warranty does not cover damage caused by accident, improper care, negligence, normal wear and tear, or the natural breakdown of materials over extended time and use.

Damage not covered under warranty may be repaired for a reasonable rate and a fee will be charged for return shipping.

For warranty evaluation, your product must be returned directly to AlliSport Ltd, Aubrey’s Farm, Bromesberrow Estate, Ledbury, Herefordshire, HR8 1RZ, UK.

All shipping for warranty must be pre-paid and insured and accompanied by reference to the original invoice. We cannot be liable for lost or damaged in-bound packages.