Swift Springs Sport Lowering Springs - Infiniti G37 AWD Coupe (V36) | 7.5/7.8 kg/mm | -1.3"/-1.0" Drop (4N911)

Lower and sharpen your G37 AWD Coupe's handling with Swift Springs Sport lowering springs. Engineered specifically for the Infiniti G37 AWD Coupe (V36), these springs deliver a meaningful drop with improved spring rates over the factory setup — backed by Swift's 80+ years of racing and industrial spring engineering heritage used in GT and Formula 1 series worldwide.

Spring Specifications:

Key Features:

• Application-specific spring rates for G37 AWD Coupe
• 7.5 kg/mm front / 7.8 kg/mm rear spring rates
• -1.3" front / -1.0" rear drop
• Lightest, most linear spring rate on the market
• Reduced unsprung mass vs. factory springs
• Smoother weight transfer
• Improved ride quality over comparable lowering springs
• Lower tyre temperatures
• Increased vehicle reaction predictability
• 80+ years of Swift racing and industrial spring engineering

Performance Benefits:

• Lower Centre of Gravity: -1.3" front / -1.0" rear drop reduces body roll and improves cornering response
• Higher Spring Rates: 7.5/7.8 kg/mm provides improved body motion control over factory springs
• Linear Rate: Consistent, predictable spring behaviour throughout the suspension travel
• Lighter Unsprung Mass: Swift's lightweight construction reduces unsprung weight for improved suspension response
• Smoother Weight Transfer: Linear spring rate provides more progressive, controllable weight transfer during cornering
• Lower Tyre Temps: Better suspension control keeps tyres working more efficiently

Specifications:

• Brand: Swift Springs
• Part Number: 4N911
• Product: Sport Lowering Springs
• Front Spring Rate: 7.5 kg/mm
• Rear Spring Rate: 7.8 kg/mm
• Front Drop: -1.3" (approx. 33mm)
• Rear Drop: -1.0" (approx. 25mm)
• Construction: High-tensile steel

Fitment Information:

• Infiniti G37 AWD Coupe (V36)
• Note: AWD Coupe specific — not for RWD G37 Coupe or G37 Sedan/Convertible applications
• Note: Verify your G37 is the AWD Coupe variant before ordering
• Note: Drop figures are approximate and may vary depending on vehicle condition, existing suspension wear, and options
• Installation: Professional installation recommended — alignment required after installation

What's Included:

• Swift Springs Sport lowering springs — complete set (front and rear)
• Note: Shock absorbers/struts sold separately — inspect and replace if worn
• Note: Professional alignment required after installation

Installation Notes:

• Professional installation strongly recommended
• Inspect shock absorbers and struts — replace if worn or leaking
• Use proper spring compressor tools — never attempt to compress springs without correct tools
• Torque all suspension fasteners to manufacturer specifications
• Professional four-wheel alignment required after installation
• Re-check alignment after first 500 km of driving

Swift Springs Engineering:

Swift Springs are widely regarded as one of the finest spring manufacturers in the world, with an 80+ year heritage in racing and industrial spring engineering. Their springs are used in some of the most demanding motorsport series globally, including GT racing and Formula 1, where spring consistency, linearity, and weight are critical performance factors. Swift's engineering process draws from hundreds of concepts and theories developed over decades of racing experience, resulting in springs that are simultaneously the lightest, most durable, and most linear available. This motorsport-derived engineering is applied directly to their street and sport spring lineup, giving G37 owners access to the same spring technology trusted by professional race teams.

Linear Spring Rate — Why It Matters:

A linear spring rate means the spring provides consistent resistance throughout its compression range — compressing the spring 10mm requires the same force whether the spring is near full extension or near full compression. This linearity is critical for predictable, consistent handling. Progressive rate springs (which become stiffer as they compress) can provide a comfortable initial ride but become unpredictably stiff near the limit of suspension travel, making vehicle behaviour harder to predict at the limit. Swift's linear rate springs provide consistent, predictable handling response throughout the suspension's travel range, which is particularly valuable for performance driving where understanding and predicting vehicle behaviour is essential.

Lightweight Construction — Unsprung Mass Reduction:

Swift Springs are engineered to be the lightest springs possible while maintaining the required spring rate and durability. Reducing unsprung mass — the weight of components not supported by the springs (wheels, tyres, brakes, hubs, and the springs themselves) — has a disproportionately large effect on handling quality. Lighter unsprung mass allows the suspension to respond more quickly to road surface changes, keeping the tyre in better contact with the road. This improves grip, ride quality, and handling precision. Swift's lightweight springs contribute to unsprung mass reduction compared to heavier factory or aftermarket springs of equivalent rate.

7.5/7.8 kg/mm Spring Rates — G37 AWD Coupe Application:

The 7.5 kg/mm front and 7.8 kg/mm rear spring rates are specifically chosen for the G37 AWD Coupe's weight distribution, suspension geometry, and intended Sport use. Higher spring rates than factory reduce body roll and improve cornering response, but must be matched to the vehicle's weight and suspension travel to avoid a harsh, bouncy ride. Swift's application-specific rate selection ensures the 4N911 provides meaningful performance improvement over the factory springs while maintaining acceptable ride quality for street use. The slightly higher rear rate (7.8 vs. 7.5 kg/mm) helps balance the AWD system's rear weight contribution and maintain neutral handling balance.

-1.3"/-1.0" Drop — Stance and Handling:

The -1.3" front and -1.0" rear drop lowers the G37 AWD Coupe's centre of gravity, reducing body roll during cornering and improving the car's visual stance. The slightly greater front drop (-1.3" vs. -1.0" rear) helps maintain or slightly improve the front-to-rear balance of the lowered stance. Drop figures are measured at stock ride height and represent the approximate change — actual drop may vary depending on the vehicle's existing suspension condition, spring fatigue, and options. After installation, a professional alignment is essential to restore correct suspension geometry at the new ride height.

AWD Coupe Specific:

The G37 AWD Coupe uses a different suspension setup than the RWD G37 Coupe, G37 Sedan, and G37 Convertible. The AWD system adds weight and changes the suspension geometry and spring requirements compared to the RWD variant. The Swift 4N911 is specifically engineered for the AWD Coupe's unique requirements — using RWD or Sedan springs on an AWD Coupe will result in incorrect spring rates and drop figures. Always verify your G37 is the AWD Coupe variant before ordering.

Pairing with Shock Absorbers:

For the best results, pair Swift Sport lowering springs with quality shock absorbers appropriate for the new ride height and spring rates. Factory shock absorbers are valved for the factory spring rates and ride height — while they will function with lowering springs, their damping may not be optimally matched to the new spring rates. Aftermarket shock absorbers or coilovers valved for the Swift spring rates will provide the best handling and ride quality combination. If your factory shocks are worn or leaking, replace them at the same time as the springs — worn shocks with new springs will result in poor ride quality and handling.

Why Swift Springs?

Swift Springs is one of the most respected spring manufacturers in the performance automotive world, trusted by professional race teams and enthusiasts worldwide for their quality, consistency, and engineering excellence. Their motorsport heritage and 80+ years of spring engineering experience are reflected in every spring they produce. For G37 AWD Coupe owners who want the best lowering spring available for their platform, Swift Springs is the benchmark choice.

Perfect For:

• Infiniti G37 AWD Coupe owners wanting improved handling and lowered stance
• G37 AWD Coupe builds wanting Swift Springs' motorsport-derived linear spring technology
• Street and occasional track use G37 AWD builds wanting improved body motion control
• G37 AWD Coupe owners replacing worn factory springs with a performance upgrade
• Anyone seeking the lightest, most linear lowering spring for their G37 AWD Coupe

Perfect For: Infiniti G37 AWD Coupe (V36) owners seeking Swift Springs Sport lowering springs for improved handling, reduced body roll, and lowered stance with motorsport-grade linear spring engineering.

Pro Tip: Book your alignment appointment before your spring installation — alignment shops are often booked out, and driving on misaligned suspension after lowering accelerates tyre wear and compromises handling. Get the alignment done immediately after installation.

7.5/7.8 kg/mm | -1.3"/-1.0" Drop: Linear spring rate. Lightweight construction. AWD Coupe specific. Complete front and rear set. Professional installation and alignment required. Inspect shocks at time of installation.

Lower and sharpen your G37 AWD Coupe with Swift Springs Sport — 7.5/7.8 kg/mm, -1.3"/-1.0" drop, linear rate, lightweight, motorsport-proven engineering.