XYZ Racing Circuit Master Coilovers — Subaru IMPREZA GDA/GDB STI A-D/GGA/GGB (PCD:5 X 100) 2WD/4WD 2000-2007

The GD-generation Impreza carries its turbocharged boxer low but well forward, and on standard dampers that nose-led mass shows up as float over kerbs and lazy understeer the moment you load the front axle mid-corner. The Circuit Master coilover for the Subaru Impreza GDA/GDB STI A-D/GGA/GGB is built to pin that front end down and keep the symmetrical AWD system putting power to the road instead of scrubbing the outside front tyre.

This is the spec for sustained circuit lap-time work, not a comfort-biased fast-road set. It gives you the body control to carry the GD’s considerable mid-range punch out of slow corners without the platform pitching, plus the adjustment range to suit anything from a smooth resurfaced circuit to a broken club layout.

What this coilover does for your 2000-2007 Subaru Impreza GDA/GDB STI A-D/GGA/GGB

Drop the ride height and the GD’s centre of gravity falls with it, cutting the roll that makes the standard car feel reluctant to change direction. Firmer, properly valved damping checks the weight transfer that overloads the front tyres on turn-in, so the AWD car rotates more willingly and you can get back on boost earlier. The 9720 adjustment combinations, set through three adjustment knobs, let you separate the front and rear behaviour – useful on a heavy turbo Impreza where you want the nose compliant enough to find grip while the rear stays tied down under traction. Across a session the result is a flatter, more predictable platform that holds its attitude through long, loaded corners.

About the Circuit Master coilover

The Circuit Master sits at the sharp end of XYZ Racing’s range, developed alongside their competition Racing, Drift and Tarmac Rally specs and tested by XYZ racing teams across international circuits. The headline figure is 9720 separate adjustment combinations, controlled by three adjustment knobs that give independent influence over the damper, so the kit can be tuned to a specific track rather than left on a single compromise setting. The valving runs a small oil-passage design; over large bumps the oil forced through that restricted passage can produce a faint noise, which is normal for this style of circuit damper and not a fault. Because it is built specifically for circuit surfaces, the trade-off deliberately favours control and consistency over road-going refinement. This is a track tool first, made for owners chasing repeatable times rather than a quiet commute.

Fitment for the Subaru IMPREZA GDA/GDB STI A-D/GGA/GGB (PCD:5 X 100) 2WD/4WD (2000-2007)

This kit is specified for the GD/GG Impreza built between 2000 and 2007, covering the GDA/GDB STI A-D saloons and the GGA/GGB wagon bodies on the 5×100 PCD hub. It suits both 2WD and 4WD variants within this chassis family. Confirm your exact chassis code and PCD against the options before ordering.

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Set your ride height and damper preferences for your GD Impreza and configure yours below.