Description
YELLOW SPEED RACING DYNAMIC PRO DRIFT COILOVERS SUBARU WRX STI VA 14-21
Our Dynamic Pro Drift coilovers were designed in a development project for Yellow Speed Racing by members of the japanese “Nichiei Racing Team”, Mr. Yoichi Imamura and Mr. Feng Ren Zhi. Mr. Imamura won the Japan D1 championship in 2003, 2009, 2010, and 2011 & Mr. Feng is a top D1 professional driver from Taiwan. Countless hours of development was put into these coilovers to design the best kit for drivers competing in drift competitions. We are constantly testing new features, improving our design, and testing these coilovers to make sure that our kit lives up to our customer’s expectations.
This kit features an inverted monotube design as well as a 0kg Helper Spring which enables the rear tires to have less contact with the road surface and allows the vehicle to have more control when engaged in a sliding motion.
High quality components are adopted to ensure product durability and stability. Each application is test fit and completely road tested to guarantee perfect performance and comfort.
| MONOTUBE INVERTED DESIGN For the suspension system with front or rear MacPherson strut model, the monotube inverted design is utilized to reduce the effect upon the damping oil and shock piston resulting from high temperature from the brake system and to take side loading better without major deflection. The damper rod is made up-side down to save unsprung weight for better suspension response. The inverted strut is built stronger than a regular shock due to different shock body construction with an outer sleeve. For the suspension system with rear A-Arm strut model, the rear damper rod has been thickened toψ20mm, which enables to support a bit more side G Force, and makes a vehicle more stable. In addition, the thickened damper rod can prevent from being bent or deformed. |
| 33-WAY DAMPENING ADJUSTABLE This suspension system features 33-way dampening force adjustment (compression/ rebound). A wide range of dampening adjustments can be made to provide a variety of responses to different road conditions and to tune ride feel. * The damper adjustment is on the bottom of the inverted shock. |
| PILLOW BALL UPPER MOUNT (* SOME MODELS W/ ADJUSTABLE CAMBER PLATE) The pillow ball is equipped on the front and rear upper mounts to offer direct and complete handling response. For some models, the adjustable camber plate is provided (where applicable, please refer to our application sheet) allowing for the camber to be adjusted to prevent from excessive tire wear. |
| HIGH RIGIDITY STEEL SPRING The spring is made from high quality SAE9254 steel for optimal durability and high tensile strength. The spring rate remains unchanged and undeformed even after the spring has been subjected to long term wear and even if compressed or extended. For the suspension system with rear A-Arm strut model, the rear coilovers come with 0kg helper spring; this would make the area of contact of the tire with the ground limited when the wheel begins to slide. Also, two sides of the tires will have more balanced grip. |
| 0KG HELPER SPRING The rears of Dynamic Pro Drift coilovers come with 0kg helper spring; this would make the area of contact of the tire with the ground limited when the wheel begins to slide. Also, two sides of the tires will have more balanced grip. |
| ADJUSTABLE SPRING SEAT The spring seats are made from forged aluminum for durability and rigidity. |
| FULL LENGTH ADJUSTABLE A steel lower bracket is utilized for MacPherson strut type to increase rigidity for safety (where applicable). For some MacPherson strut models, the brake line bracket is welded manually perfectly to the steel lower mount. A high quality forged alloy aluminum lower bracket is used for Double-A Arm strut type (where applicable). The steel/aluminum lower bracket is processed with electroplated/ anodized surface treatment to prevent corrosion or rust in the harsh conditions of motor sport. For the suspension system with front MacPherson strut model, the bolting hole on the front lower bracket is individually designed for the application. When a driver forces a car to slide sideways through a turn during large side-slip, or a vehicle is stopped with hard braking, the bolt will not be displaced from the edge of the mounting hole. In addition, front lower bracket has a cross steel plate welded to it for increased rigidity and strength, and this design can prevent the lower bracket from being deformed. The vehicle ride height can be adjusted easily with the lower bracket by winding up and down to drop and raise. With the lower bracket, it allows maximum suspension travel without affecting the shock stroke. |
| SHOCK BODY 55mm steel shock body is coated with zinc plating for corrosion resistant in the harsh conditions of motor sport. |
| Wave Alloy Steel Thrust Washer For FRONT MacPherson strut models, wave alloy steel thrust washer is installed between a lower locking collar and a bottom mount. The wave thrust washer can provide a controlled amount of friction between the lower locking collar and the bottom mount to effectively prevent the lower bracket from spinning around or becoming loose. |
| SPRING BEARING MOUNT PENDING PATEN Spring bearing is mounted between the spring and the top cap to make the handling more agile and to eliminate the spring noise caused by car cornering. This design enables the spring and the shock to perform together more effectively. Clean and grease the spring bearing periodically to prevent from rust or corrosion, which can make the spring bearing last longer. The spring bearing is consumptive product such as pillow ball bearing, rubber bushing, brake pads, brake rotor, oil seal etc.., and it will be worn out or deformed after having been used for a certain period. Therefore, the warranty does not cover spring bearings or metal shims that go on top and bottom of the spring bearings. |
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