XYZ Racing Circuit Master Coilovers — Infiniti G20 P11 (Rear Bolt Distance φ172) 1998-2002

The G20 P11 was the one properly sorted front-driver Infiniti sold in this era, and that front-wheel-drive layout is exactly why stock damping runs out of ideas the moment you start pushing corner entry. Trail-brake hard into a bend and the nose loads, the rear goes light, and the factory struts simply weren’t built to hold that line lap after a few laps in anger.

The Circuit Master coilover is XYZ Racing’s dedicated circuit tool, built for the P11 chassis where sustained lap-time work – not one hot lap, but a full session – is the point. It replaces the compliance-tuned factory setup with a platform designed to keep the car’s attitude consistent as track temperature and tyre wear change the picture lap by lap.

What this coilover does for your 1998-2002 Infiniti G20

On a P11 that’s carrying front-end weight through the SR20-era chassis, the Circuit Master’s damping range lets you firm up compression enough to control nose-dive under braking without turning the ride into a pogo stick on the way back to pit lane. The 9720-way adjustment range means the front and rear can be tuned independently as your understeer balance shifts through a session, rather than living with one compromise setting all day. Because the front-wheel-drive G20 relies on rear stability to rotate rather than power, a monotube-style damper that resists heat fade keeps rear grip predictable into the third and fourth lap of a stint, not just the first. Ride height adjustment brings the centre of gravity down without pushing the car into the kind of harsh, unusable stiffness that makes a front-driver twitchy on turn-in.

About the Circuit Master coilover

XYZ Racing built the Circuit Master as its top-tier circuit damper, developed and run by its own racing teams across international tracks rather than tuned purely on a bench. The headline figure is 9720 individual adjustment combinations, delivered through three external knobs so compression and rebound can be set apart from ride height without stripping the unit down. That level of adjustment exists because a race car’s needs change lap to lap – what works cold doesn’t work once tyres and oil are up to temperature. One quirk worth knowing: the small-bore oil passage behind those adjustment knobs can produce a faint noise over sharp bumps. That’s a by-product of the fine metering that makes the fine adjustment possible, and on a circuit surface – which is what this damper is built for – it’s a non-issue.

Fitment for the Infiniti G20 (1998-2002)

This kit is spec’d for the G20 P11 chassis with the rear bolt distance of φ172mm, covering the 1998 to 2002 model years. Confirm the rear bolt spacing on your car against this φ172 spec before ordering, since P11-generation G20s were built with more than one rear mounting pattern across markets.

What buyers also search for

• Infiniti G20 P11 track coilover for sustained lap sessions, not just one flying lap
• Infiniti G20 suspension upgrade that keeps a front-wheel-drive chassis stable under trail-braking
• G20 P11 Circuit Master damping adjustment for changing track and tyre conditions
• Infiniti G20 1998-2002 coilover kit matched to the φ172 rear bolt pattern

Spec your ride height and damping range for the G20 P11 and build yours below.