Performance planning for the rest of the European garage — Porsche 911, Audi RS and Mercedes-AMG — with the same priorities we apply to BMWs: chassis first, supporting hardware before power, and honest expectations.
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The RS3's five-cylinder invites tuning, but the order matters. Which RS3 generations reached the US, what a tune and transmission calibration involve, why downpipes come with legal strings attached, and where the chassis work fits.
Most 911s respond better to tires, alignment and brakes than to more power. Here's the order we'd work in on a 997, 991 or 992, what changes for GT cars, where tuning does and doesn't make sense, and what to check first.
Tell us what you drive and what you want from it. Every project at HTP Motorsport in Tempe starts with a conversation and an in-person look at the car.
