Western Star 6900 Series ECU Remap & Tuning

Real stock to tuned power and torque for every supported Western Star 6900 Series engine, with the exact OBD cable, the recommended tool, and every remap available.See moreSee less

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Western Star 6900 Series

Western Star 6900 Series tuning at a glance

Our catalogue covers 16 Western Star 6900 Series engine variants, each with stock and tuned figures sourced from the remap database.

Most popular Western Star 6900 Series engines for remapping

The Western Star 6900 Series range splits into 16 diesel variants. Every figure above comes straight from our vehicle database. Pick your exact engine to see the stage-1 numbers.

Hannah Tully

Alt Tune are great to deal with, prompt service and the power tune in our 3.2 Ranger has made a massive difference to low down torque and smoother power. Thanks Team!

Steven Boshoff

What more could you ask for? Great team with dedication to get the best out your vehicle.

Luka Verbič

great service

Bryce

Awesome service with a quick turn around. Tunes worked awesome with noticeable gains from the drivers seat. Have had my last 3 vehicles tuned and would return

Hans Ruiterman

Very knowledgeable team, they provide great support and their service is prompt. Highly recommended!

Speen Ghar Workshop

Thank you appreciated bro for 1GD Hilux 2021

Mark Haynes

A reliable & trusted team for all automotive tuning services.

arran Marshall

Awsome business to deal with, Always supplies High Quality Performance tunes with back up and support when needed . . Highly recommend

Sidonz

Very pleased with the work that Alt Tune did on our 1.8 BMW X1 Diesel. The car runs so much better. Power and acceleration have markedly increased. Thanks to the Alt Tune team.

Scott Giltrap - Backblocks Hunting

This was an amazing company to steal with. I dealt with another company that stuffed up the tune in my Ford Everest that bad that I didn't want to drive it any more. However ALT Tune fixed the issue in a quick and professional manner that sorted out the problem and makes it a pleasure to drive again.

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Western Star 6900 Series ECU Remap & Tuning

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