Project FR-S: Getting More Grip with Whiteline, Cusco, Rays Wheels and Achilles 123S Tires!

The Whiteline bar has forged in end eyes for superior strength compared to the more common welded in eyes.  The bar uses the stock end links because they are a ball joint type without the typical flexing rubber.

We do the tape and lube tricks to the rear bar as well.  The Whiteline bar looks small but it’s huge compared to the pencil like stock bar.

To install the rear bar, we had to undo the GReddy exhaust from the rear rubber hangers and pull it down a little bit to slip the bar in.  Not that big of a deal.

You can see the urethane bushings here with their anti slip collars.  People don’t think of these too often but they really are critical because typically a swaybar will move to the side some over the suspension’s stroke, sometimes as much as 0.50″.  The collars ensure that every bit of differential suspension movement get translated into bar movement.  Whiteline sells the collars separately as an accessory as well so you can add them to your bars even if you don’t use Whiteline.

Like the front bar, the rear bar has forged in ends.  In the rear this is more significant as the adjustment feature can potentially cantilever the load to a greater degree and stress this area more highly.  Like the front bar, the rear bar stock end links are non compliant ball joint type so they are reused here.

Here is the stock transmission mount.  You can see the huge air gap in the stock rubber bushing.  This allows for a huge amount of transmission movement in the twisting direction.  When power is increased this could result in poor shifting, popping out of gear and even wheel hop as the amount of movement allowed is very large.