Upgrade your Nissan Laurel C33 with the New Genuine RB20 Valve Spring Retainer Kit from Terra Firma Automotive. This comprehensive kit includes 24 high-quality retainers designed to enhance your engine's performance and reliability. Trust in our genuine Nissan parts to maintain the authenticity and precision of your Laurel RB20 engine. Improve your vehicle's overall performance with Terra Firma's top-notch valve spring retainer kit.s.