XYZ Racing Street Advanced Coilovers — Audi TT RS 8S 4WD φ55 2015-2026

The TT RS 8S’s five-cylinder EA855 sits well forward of the front axle, and that mass, driven hard through Audi’s quattro all-wheel-drive system, pushes the nose to run wide first under trail braking before the rear axle ever gets involved. A Street Advanced coilover kit for this chassis is built to close that gap – enough adjustment range to hold the car flat into an apex on a fast Sunday drive, without turning the ride into something you dread on the motorway home.

Where the factory TT RS setup softens off to manage the five-pot’s weight over the front wheels, Street Advanced gives you a kit that can be firmed up for a track day and backed off again for the commute, on the same set of dampers.

What this coilover kit does for your 2015-2026 Audi TT RS 8S 4WD φ55

Drop the ride height and firm up front compression and the TT RS’s characteristic nose-first understeer under trail braking eases, because the front tyres load progressively instead of diving and washing wide. The 720-way damping adjustment lets you set compression and rebound independently front and rear, so you can work the understeer out of corner entry without turning the rear into something that snaps back on a bumpy B-road. Lower the centre of gravity and the quattro system’s torque transfer front-to-rear feels more direct out of a slow corner, because there’s less body roll masking where the grip actually is. On the road, the φ55 strut body carries enough oil volume to hold that damping control over a full B-road session rather than fading after a few hard miles, and the adjustable ride height lets you bring the stance back to something that still clears speed bumps.

About the Street Advanced coilover

Street Advanced is XYZ Racing’s highest-volume coilover line, refined over successive seasons by the brand’s own engineering team and run on race circuits worldwide before any of that development reaches a road car. The result is a kit built specifically to straddle normal road use and the occasional track day, rather than being tuned exclusively for one or the other. Each damper offers 720 discrete damping positions, a genuinely fine adjustment curve rather than the handful of clicks you get on a basic set, useful when you’re hunting for the point where the ride stays liveable but body control doesn’t go soft. Construction follows XYZ’s monotube-based Street Advanced spec, with a strut body sized to the TT RS’s mounting points and a brief aimed squarely at drivers who want to keep pace on a fast road without losing the composure a five-cylinder AWD chassis needs at the limit.

Fitment for the Audi TT RS 8S 4WD φ55 (2015-2026)

This kit is built for the Audi TT RS 8S chassis, φ55 strut diameter, across the 2015-2026 production run, covering the quattro all-wheel-drive TT RS specifically – not the standard TT or TTS. Confirm your car sits within this chassis code and year span before ordering, since the 8S generation’s mounting points and strut length are specific to this fitment.

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Every Street Advanced kit is built to your car’s exact spring rate and ride height spec – pick your configuration below to match how you actually drive the TT RS.