Project G37S: Suspension Upgrade with KW Variant 3’s and Eibach Swaybars

The compression and the rebound can be adjusted individually, allowing fine tuning to get the ride behavior setup perfectly to your tastes. Our dampers have the new compression adjustment knob on the bottom, which makes on the fly changes easy with a set of ramps or jackstands.

On the spec sheet from KW: the harder the compression adjustment is on the rear damper, the more stable the car feels with fast direction changes. Softer rear compression might be better if the car has a tendency to understeer. Too much compression might cause tire roll and loss of grip. The great thing about this setup is all the fine tuning that can be done to get the setup just right for the street or track.

While we were in there, a set of camber arms needed to be sourced for the front to dial in the camber settings when lowering the car.  A set of rear camber arms from Kineticx were installed when we did the wheels. We reached out to Eibach who offers both a front and rear camber arm for the G37, and they also wanted us to evaluate a set of their swaybars. The final thing we needed before getting started was finding a local alignment shop in Phoenix that would do the job right and set the ride-height.  After a few calls, finding a place that could do all this work proved too troublesome so a roadtrip to the MotoIQ HQ for the parts install and a trip to West End Alignment Alignment was in order.

 

The camber is not adjustable on the G37, so we replaced the upper control arm in the front with this part from Eibach. It allowed us to dial the camber back to .8 negative by the time we finished setting our ride height.

Eibach uses cold-formed steel alloy to make their swaybars and finishes them off with a red powdercoat finish. Polyurethane bushings are used to stiffen the components over conventional rubber bushings.

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