XYZ Racing Street Advanced Coilovers — BYD QIN PLUS 2025-2026

The 秦 QIN PLUS carries its DM-i battery mass low in the floorpan, and that weight is exactly what the soft factory dampers struggle to control once you push past a roundabout or a loaded motorway slip road. The standard tune leans towards isolation and economy, so the body floats on its springs and the front axle washes wide before the chassis has properly settled. This is the gap the XYZ Racing Street Advanced coilover is built to close.

For a front-driven saloon like the Byd 秦 QIN PLUS, the Street Advanced sits at the sensible end of the range: a height-adjustable, damping-adjustable kit aimed at enthusiast street use where you still want a liveable everyday ride. It lowers the centre of gravity, tightens body movement, and gives you a single set of corners that can be soft for the commute and firmer for a weekend B-road.

What this coilover kit does for your 2025-2026 Byd 秦 QIN PLUS

Drop the ride height and the heavy 秦 QIN PLUS stops pitching and rolling the way it does on the OE setup, so turn-in feels sharper and the nose holds its line under braking. The 720-way damping range is the headline here: wind it soft and the car still soaks up broken urban tarmac, then add clicks of compression and rebound to stop the body wallowing when you lean on it. You also get a cleaner, lower stance without the bump-stop crashing that cheap lowering springs bring to a battery-laden hybrid.

About the Street Advanced coilover

The Street Advanced is XYZ Racing’s most widely sold kit, developed over several years by the company’s in-house engineering team and refined through international race programmes before being detuned for the road. It pairs ride-height adjustment with 720 distinct damping settings across a single combined adjuster, so comfort and control are dialled by the same dial rather than fought over. XYZ position it squarely for normal road use with the occasional track day, which suits the way most 秦 QIN PLUS owners actually drive. Construction is geared toward repeatable adjustment and durable street duty rather than one-shot circuit specialisation.

Fitment for the Byd 秦 QIN PLUS (2025-2026)

This kit is matched to the BY12 chassis 秦 QIN PLUS across the 2025 to 2026 model years. Confirm your chassis code and build year against the listing before ordering so the spring rates and mounting hardware line up with your car.

What buyers also search for

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• Street Advanced coilover height and damping adjustment for a DM-i saloon

Set your height and damping preferences and configure yours below.