XYZ Racing Street Advanced Coilovers — Audi TT RS 8J 4WD φ55 (Modified Rear Integrated) 2006-2014

The TT RS 8J puts its five-cylinder turbo ahead of the front axle and drives all four corners through Audi’s quattro system, and that combination piles weight into the nose long before you factor in what a hard trail-brake into a tightening corner does to it. Stock damping on this car struggles to keep that mass settled once you start using the engine and the grip properly, and ride height that’s merely "lowered" doesn’t fix the underlying balance problem.

XYZ Racing’s Street Advanced coilover kit for the Audi TT RS is built for owners who use the car hard on a B-road on Saturday and might turn a lap or two on an open trackday, not for a car that only sees a driveway. It replaces the factory struts and springs with a full coilover assembly matched to the TT RS’s mass and drivetrain layout, giving you a platform you can actually set up rather than one that’s simply lower.

What this coilover does for your 2006-2014 Audi TT RS

Drop the ride height and firm up the spring rate on this chassis and the TT RS stops rolling into understeer the moment you ask the front tyres to do two jobs at once – turn and put power down. The 720-way damping adjustment lets you separate compression and rebound behaviour enough to keep the nose settled under trail-braking while still letting the quattro system find traction on the way out of a bend. Because the kit is built specifically around this car’s weight distribution and mounting points, you get a lower centre of gravity without the front end feeling nervous or the rear stepping out unpredictably on a wet B-road. Owners running this on the road get sharper turn-in and less body movement over compressions; those adding trackdays get a car that holds its line through a fast direction change instead of wallowing on the way in.

About the Street Advanced coilover

Street Advanced is XYZ’s volume model, developed over several years of iteration by the brand’s engineering team and shaped by feedback from international racing programmes rather than built in isolation. It’s positioned deliberately between a fast-road spring kit and a full motorsport setup: usable on the daily commute, stiff enough to make sense of a trackday. The headline spec is 720 damping adjustment steps, giving a genuinely fine window between comfort and control rather than a handful of coarse clicks. Construction follows XYZ’s coilover format – height-adjustable perch, external damper body, spring seat matched to the strut – so ride height and preload can both be set independently. It’s aimed squarely at drivers who want more speed and more control over how the car behaves, without asking them to live with a race-car ride every day.

Fitment for the Audi TT RS 8J (2006-2014)

This kit is built for the TT RS 8J, chassis code AU41-3, covering the 2006 to 2014 production run of the quattro-equipped 4WD car with the φ55 strut diameter and modified rear integrated mounting. Confirm your TT RS matches this chassis code and year range before ordering, since Audi revised strut diameters and rear mounting across the TT range.

What buyers also search for

• Audi TT RS coilover upgrade for road and occasional track use
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• Audi TT RS Street Advanced damping adjustment for daily driving and trackdays
• Audi TT RS ride height and spring rate options for the 2006-2014 chassis

Pick your damping setting and spring rate below to configure the kit for how you actually drive your TT RS.