Coilover Infiniti EX30d J50 (07~13) Racing. This kit is only used for circuit.

BORDER have many experiences of setting up the coilover kit for circuit.

We won the championship more than 200 times and install BORDER products to estimate.

In order to make each and every vehicle experience the best performance, you shall offer us the details of all parts for your car and purpose, for example: weight, HP, front wheelm rear wheel and all wheel drive. So we can customize the coilover kit only for your car.

Top Mount
Front: X
Rear: X

Front Spring
Diameter: Xmm
Length: mm
Rate: kg

Rear Spring
Diameter: Xmm
Length: mm
Rate: kg

32 different damping settings are able to response the varieties of road conditions.

Aluminium upper mount for wishbone coilover is able to enhance the handling and pillowbal upper mount for McPherson coilover is able to enhance the handling and adjust the camber angle.

Aluminium lightweight ride height adjustment adjusts the ride height desired and reduce the weight of vehicle.

Our design is oil and gas separately for monotube. There are diameter 44mm pistons in the strut which can contain large amount volume of shock oil for handling everlastingly and prevent the shocks from exhaustion after long-term use and absorb the bumps caused by the uneven roads. (We teat it for a million times)

All McPherson coilovers come with pillowball upper mount with camber plate. It adjusts the camber of the tires and get the tires have better turn in fast speed and enhance the stability of the vehicles.

Camber and caster can be adjusted by 3D pillowball upper mount which is for your option. It can adjust the best angle.

All applications listed on our website are for 2WD model unless we specify 4WD.

The "model year" defined for each application on our website might be different from the ones in each country; therefore, please confirm the "production years" with us if you cannot make sure.

Each of our versions use the highest density foam for buffing, is not use general rubber. Because the foam have the highest density space, which absorb the huge compression force. Even if the cost of the foam is higher than rubber, we adhere to offer the best quality at the lower cost.