XYZ Racing Street Advanced Coilovers — Scion XB bB 4WD 2003-2007

The XB bB 4WD’s boxy, tall-roof body sits notably higher off the ground than the front-wheel-drive versions Toyota built alongside it, and the extra driveline hardware underneath shifts more weight forward and down. XYZ Racing’s Street Advanced coilovers are built to bring that centre of gravity under control without turning the car into something that beats you up on the way to work.

This is the enthusiast street kit: full ride-height adjustment to drop the bB’s stance and firm up its wallowy factory geometry, paired with damping control wide enough to soften off for a motorway run and firm up for a back-road blast. It is the spec built for drivers who want their 4WD bB to turn in like a car rather than a tall box on wheels, while keeping the day-to-day ride liveable.

What this coilover does for your 2003-2007 Scion XB bB 4WD

Dropping the bB 4WD’s ride height with this kit lowers the car’s centre of gravity, which cuts into the body roll that its tall, square-edged shape is prone to under hard cornering. Independently adjustable damping, with 720 distinct settings, lets you set compression and rebound to suit the extra unsprung mass the 4WD driveline adds over the front axle, so the nose stops diving and wallowing the way it does on the standard struts. Set it firmer and the steering response sharpens noticeably through direction changes; back it off and the ride stays composed over UK B-roads and motorway expansion joints. On a 2003-2007 XB bB 4WD that has covered a couple of decades of miles on tired factory dampers, the difference in body control is immediate.

About the Street Advanced coilover

Street Advanced sits at the centre of XYZ Racing’s coilover range, refined over years of ongoing development by XYZ’s engineering team, with lessons drawn from the international racing programmes the company has supplied over that time. It is built as a dual-purpose kit: capable enough for an occasional track day, comfortable enough to live with as a daily driver. The headline spec is 720 ways of damping adjustment, a far finer window of control than a basic sprung strut, letting you move between a compliant road setting and a firmer, flatter one without swapping parts. XYZ positions Street Advanced as the kit for drivers who want genuine speed and handling control from their car without stepping up to a full competition-spec setup, which is exactly the middle ground most bB 4WD owners modifying for spirited road use are after.

Fitment for the Scion XB bB (2003-2007)

This kit is engineered specifically for the SC04-chassis Scion XB bB in its 4WD configuration, covering the 2003 to 2007 production run. Confirm your bB is the 4WD variant before ordering, since the driveline layout changes the geometry and mounting points versus the front-wheel-drive version.

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Every Street Advanced kit arrives set to a baseline street tune, ready for fine adjustment once it is on the car – configure yours for the 4WD bB below.