RS-R N133D Down Sus Lowering Springs for 2003-2009 Nissan 350Z Z33 RWD

Vehicle Fitment

• 2003-2009 Nissan 350Z (Z33, 3.5L V6, RWD)

Features

• RS-R Down Sus lowering springs engineered for enhanced stance and handling
• Mild drop reduces fender gap while maintaining comfort
• Balanced spring rates tuned for stock suspension geometry
• Improves cornering stability and overall road feel
• Durable powder-coated finish resists corrosion
• Designed to work with original shocks and struts
• High-quality Japanese manufacturing
• Moderate ride height drop suitable for daily and weekend driving

Specifications

• Part Number: N133D
• Approx. Front Drop: -10 mm to -15 mm (~-0.4" to -0.6")
• Approx. Rear Drop: -10 mm to -15 mm (~-0.4" to -0.6")
• Spring Rate Front: 6.17 kg/mm
• Spring Rate Rear: 7.46 kg/mm
• Placement: Front & Rear lowering springs
• Compatibility: Nissan 350Z Z33 RWD (Coupe & Sedan)

Included Components

• 2x Front Down Sus lowering springs
• 2x Rear Down Sus lowering springs

Product Description

The RS-R N133D Down Sus Lowering Springs are a vehicle-specific suspension upgrade engineered for the 2003-2009 Nissan 350Z (Z33) with rear-wheel drive and 3.5 L V6 engine. These springs provide a mild yet effective drop of approximately 10 mm to 15 mm at both front and rear, lowering the center of gravity and improving cornering stability while giving the 350Z a more aggressive stance.

Tuned spring rates (6.17 kg/mm front and 7.46 kg/mm rear) work with the OEM suspension geometry and shocks, enhancing road feel and responsiveness without sacrificing daily driving comfort. The powder-coated finish ensures long-lasting durability and protection against corrosion.

This kit includes all four precision-matched lowering springs required for installation. A professional wheel alignment is recommended after installation to optimize handling and even tire wear. Coverage is confirmed for 2003 through 2009 Nissan 350Z Z33 RWD models; 2010+ coverage is unconfirmed at the time of this listing.