The Infiniti G37S has earned its reputation as one of the most balanced and rewarding rear-wheel-drive platforms in the luxury sports segment. With its 3.7L VQ37VHR engine, smooth 6-speed manual transmission, and near 50/50 weight distribution, it’s a car that begs to be driven hard. But to truly unlock the G37’s potential — whether on the street, drift track, or circuit — upgrading to performance coilovers is essential.
In this deep-dive, we’ll explore what makes coilovers so transformative for the G37S, how to select the right setup for your driving goals, and how to fine-tune your suspension for maximum grip, comfort, and control. This article builds upon our G37 Coilovers Upgrade Guide, providing even more technical insight into suspension geometry, spring rates, and damper tuning.
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Why the G37S Responds So Well to Coilovers
The stock suspension on the G37S is tuned for a mix of comfort and sport, but it quickly shows its limits when pushed aggressively. Factory dampers are non-adjustable, and spring rates are soft — leading to excess body roll, understeer on corner entry, and loss of composure during transitions. Coilovers fix all of this by combining stiffer, precision-matched springs with adjustable dampers, lowering the center of gravity and improving response.
High-quality coilovers designed specifically for the G37S also correct geometry as the car is lowered. Adjustable camber plates and pillowball mounts allow for proper alignment and sharper steering response, essential for both drifting and track driving.
Choosing the Right Coilover Setup for Your G37S
Before ordering any coilover kit, define your goal: daily driver comfort, weekend drift car, or dedicated track weapon. Each requires different spring and damping characteristics.
- Street Comfort: Choose coilovers with 6–8k front and 4–6k rear spring rates, focusing on damping adjustability. Look for a monotube design that handles uneven roads without harshness.
- Drift Setup: Go for a slightly stiffer rear — around 8–10k — to promote rotation under throttle. Front rates should stay balanced at 7–9k. Adjustable top mounts are a must for fine-tuning front camber and caster.
- Track & Grip: Choose 10–12k front and 8–10k rear spring rates. These setups prioritize consistent handling and quick direction changes while minimizing chassis roll during high-speed turns.
Understanding Damping and Its Role in Handling
Modern coilovers offer either single or double-adjustable damping. The G37S benefits most from a dual-adjustable system where both compression and rebound can be independently tuned. Here’s how to dial it in:
- Compression Damping: Controls how fast the shock compresses under load. Increasing compression reduces body roll and pitch during acceleration or braking but can make the ride harsher.
- Rebound Damping: Regulates how quickly the suspension returns to its normal position. More rebound improves control and stability but too much can cause tire skipping or traction loss.
Start with both at the softest setting and increase gradually, testing on familiar roads. Keep a tuning log to track your changes and their effects.
Lowering and Alignment: Getting the Geometry Right
Lowering your G37S not only improves aesthetics but also changes suspension geometry significantly. As ride height decreases, camber and toe shift. This is where adjustable arms and camber plates become essential.
For daily driving, aim for around -1.5° to -2° camber front and -1° rear. For drifting, increase front negative camber (-3° to -4°) to improve contact patch during counter-steer. Toe settings can also dramatically alter feel — slight toe-out in front sharpens steering, while toe-in at the rear increases stability.
Maintenance and Longevity Tips
Coilovers are precision components that need care. Here are key practices to keep your G37S performing at its peak:
- Clean coilovers regularly to prevent corrosion on threaded bodies.
- Use anti-seize compound on adjustment collars.
- Check for uneven damping or leaks every oil change interval.
- Re-torque mounting bolts after 100 miles of installation.
Regular maintenance ensures consistent handling and prevents costly rebuilds later.
Real-World Results: What to Expect After Installing G37S Coilovers
After installation, the difference is immediate. The G37S feels lighter, sharper, and far more communicative through corners. Turn-in improves, body roll decreases, and the rear end becomes far more predictable — a vital quality for drifting and high-performance driving.
SLR Speed’s G37 Coilovers Upgrade Guide showcases setups that bridge comfort and precision, helping drivers achieve the ideal balance for their build style.
Final Thoughts: Building the G37S Suspension the Right Way
Whether you’re chasing perfect fitment or milliseconds on a time attack lap, the right coilover setup transforms the Infiniti G37S from a capable coupe into a serious driver’s car. By pairing proper geometry, matched spring rates, and precision damping, you’ll gain the control and feedback necessary to push your limits safely.
For expert-grade parts and technical insight, explore SLR Speed’s complete G37S coilover selection and resources. From street tuning to drift geometry optimization, every kit is designed to enhance your driving experience from the first turn of the wheel.
