XYZ Racing Street Advanced Coilovers — Audi TT 8S φ55 (Modified Rear Integrated) (Cancellation Kit for Electronic Damping) 2015-2026

The Audi TT 8S’s factory-fit Magnetic Ride system leans on damper-mounted sensors and an ECU that expects to see them, which is exactly why this Street Advanced kit for the 8S comes bundled with a cancellation kit: it lets you remove the electronic damping hardware cleanly, without the car limping into a fault mode every time you start it. Built around a φ55 front strut, the kit’s rear assembly is reworked for direct, modified integration into the TT’s rear end rather than a bolt-on afterthought.

Street Advanced sits between fast-road comfort and circuit capability, which is exactly the brief for a TT 8S owner commuting on it through the week and wanting a sharper, better-controlled car for the odd track day or a spirited B-road run. It isn’t a set-and-forget budget kit; it’s built to be adjusted as the car’s use changes.

What this coilover does for your 2015-2026 Audi TT 8S

With 720 damping steps to work through, you get real separation between a setting soft enough for the school run and one firm enough to keep the TT’s nose planted turning into a fast corner, rather than the three or four coarse clicks a lesser kit offers. Ride height comes down and the roll centre corrects with it, so the 8S’s naturally flat cornering stance, aided by its multi-link rear, stays composed under load rather than floaty at speed. Because the cancellation kit removes the Magnetic Ride sensors and wiring from the equation, the ECU stops trying to reconcile damper positions that no longer exist, so you lose the dash warnings and intermittent limp modes that plague TTs where electronic dampers have been pulled without one. Braking stability improves too: less dive under hard stops means the front end holds its line into the corner instead of running wide.

About the Street Advanced coilover

XYZ Racing built Street Advanced as its highest-volume coilover line, refined over several seasons of development and shaped by lessons taken from the brand’s own outings in motorsport around the world before the design reaches a road car. The core of the kit is a damper offering 720 separate damping positions, giving a far finer gradation between comfort and control than the fixed or coarsely-clicked units found on cheaper kits. It’s pitched deliberately at drivers who split their car’s life between normal road use and the occasional track day, rather than a car that lives exclusively on a trailer. Spring rates and damper valving are matched so the same kit can be run soft enough for daily comfort and then wound up for a session without swapping parts. For an Audi TT 8S specifically, that means a set-up that absorbs UK B-roads on a Tuesday and still controls weight transfer through a fast chicane at the weekend, built for drivers who want both pace and precision from one set-up.

Fitment for the Audi TT 8S (2015-2026)

This kit is built specifically for the Audi TT 8S, chassis code AU46-1-C, covering 2015 to 2026 model years. It uses a φ55 front strut paired with a rear assembly designed for modified, direct integration into the 8S’s rear end, and includes the cancellation kit required on cars specified with factory electronic damping.

What buyers also search for

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Every Street Advanced kit for the TT 8S ships to the exact φ55 and cancellation-kit spec your car needs, so pick your damping and spring option below and build yours to match how you actually drive it.