Thunder Lane's 350Z and 370Z coilover systems are true rear coilovers — the spring and damper sit together at the rear wheel, improving motion ratio and rear-wheel control over the divorced-spring setups these chassis shipped with from the factory.
Both platforms are available in two tiers: TL-ONE, a single-adjustable 46mm monotube system with four proven spring/valving baselines (Track/Race, Street/Track, Comfort, Drift), and TL-PRO, a true 3-way adjustable system with remote reservoirs and included front/rear adjustable sway bars for competitive Time Trial and aero-equipped builds.
Every kit is hand-assembled per order in Poland with CVP and PVP dyno graphs, and can be valved specifically for street use if that's your priority. Lead time is 4–6 weeks. Browse below to find the 350Z or 370Z setup that matches your goals.