XYZ Racing Circuit Master Coilovers — Toyota GR YARIS RS MXPA12 (Modified Rear Integrated) 2020-2026

A GR Yaris RS on MXPA12 already runs a genuinely sorted AWD platform straight from the factory, but its GR-Four rear differential and multi-link rear end mean the standard rear geometry doesn’t always play nicely with the aftermarket. The Modified Rr Integrated variant of the Circuit Master exists specifically to fit around that rear-end packaging rather than fight it, so you keep the differential’s behaviour intact while gaining proper adjustable damping front and rear.

For an RS owner doing sustained lap sessions rather than the odd sprint, that matters. The GR Yaris shifts load hard between three driven axles under trail-braking and mid-corner throttle, and a coilover set that can’t hold its damping character through repeated heat cycles will let that balance drift lap after lap of a track day. Circuit Master is built for exactly that kind of repeated-load circuit use.

What this coilover does for your 2020-2026 Toyota GR YARIS RS MXPA12 (Modified Rr Integrated)

With independent adjustment at all four corners, you can set the front end firm enough to control the GR Yaris’s quick, AWD-assisted turn-in without upsetting how the rear differential puts power down out of slow corners. The Modified Rr Integrated design means the rear damper mounting works with the MXPA12’s factory rear subframe and diff carrier rather than requiring you to compromise geometry to clear it. Ride height is adjustable independently of spring preload, so you can drop the car for a lower centre of gravity and reduced aero lift without stacking the springs to a point where they lose working travel over kerbs. On a car this planted from the factory, the biggest gain most owners feel is consistency: the platform holds its attitude through a full session instead of softening as the dampers heat up.

About the Circuit Master coilover

Circuit Master sits at the top of XYZ Racing’s range and is built for circuit driving specifically, developed and run by XYZ’s own racing teams across a number of international circuit programmes rather than designed on paper alone. Adjustment is handled through three external knobs per damper, giving a claimed 9,720 possible combinations so you can separate low-speed and high-speed damping control instead of adjusting one blunt setting. That fine-grained range is there so the same set of dampers can be tuned from a stiffer qualifying-style setup to a more compliant long-run session setting without swapping hardware. The small-orifice valving inside each damper is what delivers that adjustment resolution, and on rough sections of track it can produce a faint noise as oil moves through the narrow passage under compression – that’s a normal characteristic of the design, not a fault, and it’s specifically not something to be concerned about on a circuit surface. Construction is aimed squarely at circuit-day durability rather than road comfort, which is the trade-off this type name signals up front.

Fitment for the Toyota GR YARIS RS MXPA12 (Modified Rr Integrated) (2020-2026)

This kit is built specifically for the MXPA12-chassis Toyota GR Yaris RS across the 2020-2026 model years, in the Modified Rr Integrated configuration that accounts for the rear differential and subframe layout. Confirm your car matches the MXPA12 chassis code and RS specification before ordering, since coilover geometry is matched to this exact platform rather than being a universal fit.

What buyers also search for

• Toyota GR Yaris RS coilover upgrade built around the MXPA12 chassis and its AWD rear end
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Spec your Circuit Master for the MXPA12 GR Yaris RS and configure yours below.