TIRES + TERRAIN: Automotive Guides, Tools & Industry News

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Toyota GR GT Unveiled: Toyota’s Next Icon

Simon Cousins•December 6, 2025
Toyota GR GT road car in a studio setting, shown in a front three quarter view with dark grey paint and red brake calipers.

Recent Articles

Close-up of damaged engine valves and combustion chamber with the text Detonation vs Pre-Ignition used as the article cover image.
Guides

Detonation vs Pre-ignition: Are They The Same?

Simon Cousins•12/4/2025
Cover image showing a Volkswagen Golf R driving at speed with a high-flow catalytic converter graphic and the headline “Cats Don’t Rob Power”.
Guides

Do Catalytic Converters Really Reduce Horsepower?

Simon Cousins•11/28/2025
Close-up of red APR coil packs on a modern engine, with bold text reading “Ignition Timing Tuning” overlayed across the ignition system.
Guides

Ignition Timing Unpacked: The Spark Strategy

Simon Cousins•10/8/2025
Close-up of two fuel injectors being compared during an upgrade, showing old vs new parts for a performance engine build.
Guides

How to Choose the Right Fuel Injectors for More Power

Simon Cousins•10/3/2025
Stylised engine diagram showing pistons and airflow, with text overlay reading Volumetric Efficiency for article cover.
Guides

Volumetric Efficiency in Engine Tuning

Simon Cousins•9/21/2025
Side-by-side comparison of an ECU and piggyback tuner with "Remap vs Piggyback" text over a racetrack background.
Guides

ECU Remapping vs Piggyback Tuning: The map or the box?

Simon Cousins•8/11/2025
3D tuning map showing a colour gradient surface from red to blue, labelled “AFR” at the top and featuring a lambda (λ) symbol in the corner, set against a dark, stylised background.
Guides

Air to Fuel Ratio: The Foundation of Engine Tuning

Simon Cousins•8/3/2025
Front three-quarter view of a red BMW Z3 M Roadster with the top down, featuring the iconic BMW M tri-colour stripes in light blue, dark blue, and red. The car is positioned in front of a large stylised “Z3” logo rendered in M colours, with a vintage film grain overlay on a black textured background.
Guides

BMW Z3: The Ultimate Roadster No One Talks About

Simon Cousins•6/1/2025
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