Hotchkis Anti-Sway Bar Research

The first modification I am planning on installing are the Hotchkis Anti-Sway Bars. They are for sale by the vendor, Titan Motorsports for $260 shipped.

http://www.srtforums.com/forums/showthread.php?t=163532&highlight=hotchkis+sway+bar+shipped

• They increase oversteer by making the rear sway bars 5.83 mm/ 6.59 mm larger than stock while the front anti-sway bars increased by only 2.29 mm or 5 mm. That's a 3.54 mm/ 4.30 mm or .83 mm/ 1.59 mm difference.
• I'm still questioning whether or not their front sway bar specs are labeled correctly though. On their website, they're said to be 29 mm and at the same time give only a +44% stiffness over stock. That made no sense to me because a sway bar 5 mm larger than the stock 24 mm sway bar should yield approximately a +113% stiffness over stock. So I did some calculating and found that the sway bar size that should yield +44% stiffness should be at around 26.292 mm in diameter (2.292 mm larger than stock).
• I also found that the rear sway bars adjust from 22.83 mm (lowest setting) to 23.59 mm (highest setting) because those sizes are the only ones that yield the +225%, +271% stiffness over the stock anti-sway bars.

STOCK SRT-4 Sway Bar:
Front (24 mm)
Rear (17mm)

• [Torsional Rigidity Equation] 24^4 / 17^4 = Front stock sways are 297% stiffer than the rear stock sways.

Hotchkis Sway Bar

Front 1 1/8" (29 mm [+113%] or 26.292 mm [+44%]) Hollow +44%
Rear 15/16" (22.8255 mm, 23.59351 mm) Hollow
2 Position Rear +225%, +271%

• The front Hotchkis sways are 76%, 54% stiffer than the rear Hotchkis sways.
• ( |.._..| ) 22.82550mm (+5.83mm)/ 23.59351mm (+6.59mm)
  ..| ...| |
  ..|.._..|
  ( \___/ ) 29mm (+5mm)

COMPARISON [TORSIONAL RIGIDITY]
FRONT: (26.292^4=477853.195) / (24^4=331776) = 1.440289 = 44% Stiffer

REAR #1: (22.8255^4=271444.595) / (17^4=83521) = 3.250016 = 225% Stiffer
REAR #2: (23.59351^4=309863.357) / (17^4=83521) = 3.710005 = 271% Stiffer