For Scion FRS, Wisefab has designed a lightweight and durable billet knuckle and the lower control arm, as well as replacing the OEM electric steering rack with a hydraulic one for improved response and feedback during racing. The kinematics have been modified for maximum sideways performance and adjustable Ackermann settings. To use the kit, a Nissan S-Chassis hydraulic steering rack (50mm outer diameter) is required. The kit includes an attachment/cross-member insert and supports, but some DIY cutting and welding may be necessary to modify the cross-member.

• 62 degrees of lock, parallel steering
  You can tune your steering geometry towards positive Ackermann in just a few minutes even at trackside without messing up the alignment. Ackermann adjustment is included in the kit.
• 7 kg of weight reduction
  While still maintaining the required strength and stiffness.
• 7075-T6 aluminium
  Billet CNC knuckles and arms with optimized design and all double shear connections provide low weight and high strenght.
• CrMo rod ends and sphericals used instead of OEM bushings
• Higher roll center (RC)
  With our knuckle, the ball joint is lowered, which brings the front RC up on a lowered car, providing higher roll stiffness. This allows to remove the front anti roll-bar (sway bar) that is quite difficult to package with high lock angles.
• Good camber control and minimal bump steer with high steering angles
  On drift cars the dynamic camber and bump steer is much more important than static. With our kinematics we have assured that the camber will provide very good front grip and bump steer is minimal throughout the steering range.
• Steering jacking control
  During drifting, when steering angle is increased, jacking is also bigger, even with the same geometry it could become a problem. We have changed the geometry in a way that doesn't cause any handling issues.
• Consistent and predictable self-alignment torque. 
  Caster is not the only important parameter to provide sufficient self-alignment torque, especially at high lock. It's the combination of different parameters to maintain consistent trail and self-alignment torque. With our setup the steering wheel turns always to the direction of movement and doesn't get stuck at full lock.

Kit includes:

• Pre-set lower control arms
• Knuckles with hardware
• Assembeled tie rods
• Pre-set coilover upper mounts
• Rack relocating kit
• Crossmember supports
• Installation guide

Other information:

• This kit assumes coilovers for enough clearance
• Dependent on rim width and ET, wider fenders or fender flares are needed.
• Due to extremely wide engine bay on Scion FRS, we recommend using tires no bigger than 605mm (215/40R17, 225/40R17, 215/35R18, 225/35R18)
• With tire diameter up to 635mm (215/45R17, 225/45R17, 235/40R17, 225/40R18 etc) and lowered ride height the inner wheel wells need to be slightly modified.
• Minimum rim size is 17“, but we recommend using 18“
• Recommended backspacing is 135-140mm (7“ ET45; 8“ ET35; 9“ ET25). If ET is smaller, then wheels stay more outwards, if ET is bigger, then spacers need to be used.
• Original wheel speed sensor can be used