Product Details
BC Racing BR Series Coilovers for the 2014+ Lexus IS300 (GSE30) are BC Racing's entry-level coilover and the most popular kit in their entire lineup — they offer the most accessible entry into adjustable coilover suspension without sacrificing performance, comfort, build quality, or handling. Every kit is extensively tested on the GSE30 chassis and refined until it balances ride quality with performance — the reason IS300 coilovers from BC Racing are the best-selling adjustable kits in their segment worldwide.
Every BR Series kit is built around a mono-tube damper with simultaneous compression and rebound adjustment at every corner — a wide damping range without the complexity of a race-only setup. Ride height is fully adjustable independent of spring preload, so you set the stance and the ride separately. The off-the-shelf setup from BC Racing is deliberately balanced — spring rates and valving chosen so the kit feels comfortable day-to-day without giving up performance when you push it. Drivers who want a different recipe can spec Swift Springs, custom spring rates, or fully custom valving at checkout; BC will tune the dampers to match, which is a depth of customization most brands only offer on their top-tier kits.
BC Racing has been manufacturing adjustable coilovers since 2004 and is one of the most popular coilover brands in the automotive tuning industry for a reason: competitive pricing, deep customization, proven reliability, and a fully rebuildable damper design that lasts years instead of seasons. These IS300 coilovers arrive tuned for the GSE30 chassis and ready to bolt in — no break-in period, no guessing at setup. Every kit ships with a 2-year manufacturer warranty, lifetime access to BC service parts (pistons, seals, shafts — no unit replacement required when it's time for a rebuild), and in-house tech support from both BC Racing and the Springrates team.
Features
- 30-level simultaneous compression/rebound damping adjuster
- Mono-tube damper with linear piston and hardened chrome shaft
- Ride height adjustable independent of spring preload
- Upper mount hardware varies by chassis — camber plates, pillowball, or reused OEM mounts. See the Specifications table for what's included on your kit.
- Swift Spring and custom spring rate upgrades available at checkout
- Custom damper valving paired with custom spring rates on request
- Fully rebuildable — replacement parts available from BC for the life of the shock
- 2-year manufacturer warranty against defects
Specifications
| Part Number | R-46-BR |
| Part Name | BR Series Coilovers |
| Vehicle | 2014+ Lexus IS300 AWD (GSE30) |
| Drivetrain | AWD |
| Chassis Code | GSE30 |
| Damping Adjustment | 1-Way (30 levels) |
| Ride-Height Adjustable | Yes |
| Spring Rate - Front | 10 kg/mm |
| Spring Rate - Rear | 9 kg/mm |
| Spring Size - Front | 62-220-10K |
| Spring Size - Rear | 62-210-9K |
| Swift Springs - Front | 62-228-X |
| Swift Springs - Rear | 62-203-X |
| Camber Plates - Front | Not Applicable |
| Camber Plates - Rear | Not Applicable |
| Suspension Design - Front | True Coilover |
| Suspension Design - Rear | Divorced |
| Notes | AWD models only. Does not fit RWD IS300/IS350 variants. |
Vehicle Fitment
- 2014 Lexus IS300 AWD (GSE30)
- 2015 Lexus IS300 AWD (GSE30)
- 2016 Lexus IS300 AWD (GSE30)
- 2017 Lexus IS300 AWD (GSE30)
- 2018 Lexus IS300 AWD (GSE30)
- 2019 Lexus IS300 AWD (GSE30)
- 2020 Lexus IS300 AWD (GSE30)
- 2021 Lexus IS300 AWD (GSE30)
- 2022 Lexus IS300 AWD (GSE30)
- 2023 Lexus IS300 AWD (GSE30)
- 2024 Lexus IS300 AWD (GSE30)
- 2025 Lexus IS300 AWD (GSE30)
- 2026 Lexus IS300 AWD (GSE30)