STILLEN Nissan 370Z [Z34] / Infiniti G37, G35, Q40, Q60 Sedan Adjustable Sway Bar Kit - 304375

Transform the handling balance of your vehicle with the STILLEN Adjustable Sway Bar Kit, combining both front and rear sway bars for maximum reduction in body roll and improved cornering stability. This complete kit is engineered to deliver precise handling control whether you’re daily driving, carving canyon roads, or pushing the limits on track.

Vehicle Fitment:

• Nissan 370Z (Z34)
• Infiniti G35 Sedan
• Infiniti G37 Sedan
• Infiniti Q40 Sedan
• Infiniti Q60 Sedan
• Not compatible with AWD models

Key Features & Benefits:

• Complete front and rear sway bar kit
• Significantly reduces body roll and improves cornering performance
• 5-way adjustable front sway bar
• Front stiffness increase of 21% to 48% over factory
• 3-way adjustable rear sway bar
• Rear stiffness increase of 37% to 70% over factory
• Manufactured from high-strength aircraft-grade steel
• Retains near-factory outer diameter
• Allows reuse of factory rubber bushings
• Factory-style bushing collars prevent bar movement
• Durable red powdercoated finish for corrosion resistance
• Designed and manufactured in-house by STILLEN

Design & Performance Details:

Sway bars are one of the most effective suspension upgrades for improving handling balance. Factory sway bars are often undersized, limiting chassis stability during aggressive cornering. The STILLEN Adjustable Sway Bar Kit increases roll resistance while maintaining predictable handling and ride quality.

By retaining a near-OE outer diameter and increasing wall thickness, STILLEN achieves higher stiffness without the drawbacks of oversized bars. This design allows continued use of factory rubber bushings, reducing noise, squeaks, and maintenance compared to urethane alternatives.

Independent front and rear adjustability allows fine tuning of chassis balance to suit driving style, tire selection, and suspension setup. Drivers can dial in sharper turn-in, improved rotation, or a more neutral handling feel as desired.

Stiffness Comparison:

• Factory Front Sway Bar: 640 lbs at 1 inch of travel
• STILLEN Adjustable Front Sway Bar Position 1: 780 lbs at 1 inch of travel
• STILLEN Adjustable Front Sway Bar Position 2: 860 lbs at 1 inch of travel
• STILLEN Adjustable Front Sway Bar Position 3: 950 lbs at 1 inch of travel

Manufacturing & Quality:

Manufactured entirely in-house at STILLEN’s Costa Mesa, California facility, each sway bar is inspected throughout the production process, from raw material selection to final packaging. The high-strength aircraft-grade steel construction and durable powdercoated finish ensure long-term performance and corrosion resistance.

Upgrade your suspension system with the STILLEN Adjustable Sway Bar Kit [304375] and experience improved handling precision, reduced body roll, and enhanced driving confidence.