H&R RSS Street Performance Coilover Kit – 2021–2025 Subaru BRZ (ZD8) / Toyota GR86 (ZN8) | 28850-1

The H&R RSS Street Performance coilover kit is H&R’s top-tier street/track coilover for the second-generation BRZ/GR86 platform — developed and validated on the Nürburgring Nordschleife, one of the most demanding test environments in the world for suspension development. The ZD8/ZN8 is already one of the most capable and balanced driver’s cars available at any price point; the H&R RSS kit takes that foundation and sharpens it — lowering the centre of gravity, reducing body roll, and delivering the precise, communicative suspension response that the ZD8/ZN8 chassis is capable of but the factory suspension only partially realises. A complete coilover kit for street driving, track days, and autocross.

H&R RSS — What “Street Performance” Means

H&R’s RSS (Street Performance) line sits at the top of their street-oriented coilover range — above their sport springs and OE Sport springs, and positioned for drivers who want the maximum performance benefit from a coilover system while retaining street usability. The RSS is not a race-only setup: it’s engineered for the driver who uses their BRZ or GR86 on the street daily and takes it to track days and autocross events, requiring a coilover that performs at both extremes. H&R’s dynamic damper technology and Nürburgring development process ensure the RSS delivers consistent, predictable damping response across the full range of street and track conditions.

Key Features

• Nürburgring-Developed: H&R develops and validates their RSS coilovers on the Nürburgring Nordschleife — 14 miles of varying surface quality, elevation change, and corner types that represent one of the most comprehensive suspension test environments available. Nürburgring development is not a marketing claim for H&R — it is their actual engineering and validation process, and the result is a coilover tuned for real-world performance across a wide range of conditions
• H&R Dynamic Damper Technology: H&R’s proprietary damper technology delivers consistent, progressive damping response — flat cornering and precise directional control without the harshness of race-spec dampers. Engineered for the ZD8/ZN8 chassis specifically, not a generic valving applied to a vehicle-specific mounting kit
• Fully Threaded Shock Body: The fully threaded shock body allows independent ride height and spring preload adjustment — set your desired ride height without compromising damper stroke or spring rate. Critical for achieving a proper alignment on a lowered ZD8/ZN8 and for dialling in the exact stance and handling balance your build requires
• Lowers Centre of Gravity: Reduced ride height lowers the ZD8/ZN8’s already-low centre of gravity further, reducing body roll and improving cornering balance. The ZD8/ZN8 platform responds significantly to ride height reduction — the improvement in cornering flatness and steering response is immediately apparent
• ZD8/ZN8 Second Generation Specific: Engineered specifically for the 2021–2025 Subaru BRZ (ZD8) and Toyota GR86 (ZN8) — the second-generation platform with the FA24 2.4L naturally aspirated engine, wider track, and improved chassis rigidity over the first-generation ZN6/ZC6. Not compatible with the 2013–2021 first-generation BRZ/86/FR-S
• H&R German Engineering Pedigree: H&R is a German suspension manufacturer with decades of OEM supplier and motorsport experience — supplying suspension components to manufacturers and race teams across touring car, rally, and endurance racing. The RSS coilover carries that engineering heritage into a street/track application

Fitment

• Subaru BRZ ZD8 — FA24 (2021–2025)
• Toyota GR86 ZN8 — FA24 (2021–2025)

Not compatible with 2013–2021 first-generation Subaru BRZ (ZC6), Toyota 86 (ZN6), or Scion FR-S (ZN6). Professional installation and a four-wheel alignment are required after installation.

Specifications

• Brand: H&R
• Part Number: 28850-1
• Series: RSS Street Performance
• Damper Technology: H&R Dynamic Damper
• Body: Fully Threaded
• Development: Nürburgring Nordschleife
• Weight: 47.1 lbs (complete kit)
• Application: Subaru BRZ ZD8 / Toyota GR86 ZN8 (2021–2025)

Installation Note: Professional installation by a shop experienced with ZD8/ZN8 suspension is strongly recommended. A four-wheel alignment with camber, caster, and toe adjustment is required after installation — budget for this alongside the coilover cost. Set ride height before alignment. Verify tyre clearance at your intended ride height before finalising settings.