- Shipping Time
SF Racing Sport Coilovers for the 1997-2001 Infiniti Q45 are the best coilovers available for street-driven cars. SF Sport Coilovers were designed to give a wide range of ride height adjustability without reducing the spring travel. Each corner of the car has 32 levels (or clicks) of damping adjustability. This combines both the rebound and compression into one adjustment knob. The coilovers also use rubber top mounts to help reduce the noise that typically comes with high performance aftermarket coilovers. SF Coilovers come standard with an anodized coating to protect against rust and corrosion caused by extreme use and harsh external elements.
SF Racing parts are manufactured from high quality products sourced from around the world while still maintaining a very affordable price. SF Racing Sport Coilovers are the perfect setup for your daily driver.
|Vehicle||1997-2001 Infiniti Q45|
|Damper Model||Sport Series|
|Damping Adjustability||1-Way: Rebound and Compression|
|Spring Rates||Front: 8 kg/mm
Rear: 6 kg/mm
|Top Mounts||Front: Camber
|Camber Plates||Front: -
- Monotube damper
- Ride height adjustment (average drop range of 1-4 inches below factory)*
- Adjustable dampers - 32 levels of simultaneous rebound/compression
- 100% bolt-in replacement of OEM suspension
- T6-6061 aluminum shocks, collars, and top plates with anodized surface
- Rubber top mounts to reduce noise
- Japanese SAE9254 springs
- Japanese NOK damper oil seals
- Italian IP Damping Special Oil
- Lower noise reinforced rubber bearing upper mounts
- Lightweight, anti-corrosion, and rust-resistant components
- Low-friction and pressure resistant housing for maximum longevity
- Fully rebuildable with all replacement parts available
* Ride height varies per vehicle.
Note: All kits fit 2WD vehicles unless otherwise specified.
32 levels adjustable damping
All SF Racing coilovers offer 32 levels of adjustment allow you to perfectly dial the ride to your handling and comfort needs. The dampening adjusts compression and rebound simultaneously for ease of adjustment.
Collars and Top mounts made from Aircraft quality 6061 aluminum ally for increased hardness
Top mount, spring perch, locking collars made from High Strength 6061 anodized billet aluminum alloy which not only guarantee an excellent durability but are also low maintenance.
The components are lightweight, anti-corrosion and rust resistant. In addition, the alloys provide a lower friction in the damper working space, in order to reduce breakaway moments.
Adjustable spring perch for height adjustment
Some vehicles have a separate rear shock and spring. We call it a “hi-low kit”. In this case you will have height adjustment via the spring perch and the lower mount of the shock. Vehicles with this type of set up can still go as lower as lower than true coilovers.
Adjustable lower mount allowing maximum suspension travel
SF Racing coilovers feature the ability to adjust your ride height without affecting the shock and spring travel. This way you can set your desired ride height without having to worry about bottoming out the shock.
Monotube high pressure design reduces oil leakage
The SF Racing coilover system uses a Monotube design in which the oil and gas are separated within the cylinder. When compared to twin tube designs the Monotube dissipates heat better, allows finer dampening adjustment and reduces oil leakage. Aeration and cavitation are a lot less common problems in Monotube design, which results in a better ride.
Pillowball Top Mount improve steering control, suitable for McPherson suspension
SF Racing Pillowball Upper Mounts give driver greater driving feedback when compared to OEMS rubber upper mounts. A spherical bearing is used in place of rubber bushing and the damping adjustable camber plate is used on certain applications which allows for improved tire rip and more accurate wheel alignment. This enables improved steeling control of the vehicle.
Camber adjustment assembly built in Pillowball top mount
Adjustable camber plate allows for the camber to be adjusted to prevent from excessive tire wear.
The camber angle can be adjusted for an optimum contact surface of the tires during hard cornering and fast driving into corners.
High quality Japan imported coil springs
SF Racing coilovers use only the highest quality steel for the spring manufacturer. The springs are produced from SAE9254 Japan imported high strength durable cold wound steel.
Exclusive Italy IP damping oil
SF Racing coilovers choose Italian IP F.A. made shock oil provides high viscosity index to withstand intense track usage and great for everyday driving.
Top quality Japan NOK damper oil seals for shock absorber.
A seal performs a central task in the shock absorber. It seals the oil-filled working space where the valve piston moves back and forth. SF Racing coilovers use only the best quality of Japan NOK manufactured seals to avoid oil leaks occurring and ensure driving safety.
Electroplated body for added protection from corrosion and rust
All of SF Racing coilovers are electroplated with zinc to prevent corrosion and rust from the elements of nature.
Dust boot to protect damper seal
Dust boots are standard on all coilovers. SF Racing also integrate the bump stop inside the dust boot. This is more efficient and is less likely to crumble to pieces and deteriorate like other company’s designs.
12 month limited warranty
SF Racing coilovers come with a standard 12 month warranty which covers manufacturer defects.
SF Racing products have a 1 year manufacturer's warranty against defects. This is from the date the product was manufactured (as stamped on each product). If SF Racing deems a part defective, a replacement will be provided for that part. There are no returns.
All Coilovers currently take about 2-3 weeks to ship.
Due to material shortages and delays, all coilovers are built to order and take about 2-3 weeks to ship. If an order is estimated to take significantly longer than 2-3 weeks, we will notify you. At that time, you can elect to cancel the order or wait. Once you proceed, the order cannot be canceled.
All shipping times are estimates and are subject to change without notice.
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