True, and i think id have to buy bushings and all that seperately with the stillens...

thanks guys keep the info coming

 

There is a huge sway bar summary that will answer a lot of your questions. Within it is a PDF explaining solid vs. hollow

http://www.whiteline.com.au/docs/bul...%20Swaybar.pdf

 

Good article, but I am more curious in the torsion rates (is that the right term?) of different manufacturers.

Motordyne doesn't list on their site.

Hotchki's:Specs:
Front 1 3/8" (35MM) Tubular(Bar Weight 13.5lbs)
4 Position Adjustable
Rear 15/16"(24mm) Tubular(bar weight 5.5lbs)
3 Position Adjustable
Bar Rates:
350Z & 03- 05 G35 Front
Hole 1 = 1525 lbs/in (22% Stiffer than stock)
Hole 2 = 1845 lbs/in (48% Stiffer than stock)
Hole 3 = 2270 lbs/in (82% Stiffer than stock)
Hole 4 = 2855 lbs/in (129% Stiffer than stock)

06 G35 Front
Hole 1 = 1525 lbs/in (5% Softer than stock)
Hole 2 = 1845 lbs/in (15% Stiffer than stock)
Hole 3 = 2270 lbs/in (42% Stiffer than stock)
Hole 4 = 2855 lbs/in (78% Stiffer than stock)

Rear:
Hole 1 = 520 lbs/in (80% Stiffer than stock)
Hole 2 = 655 lbs/in (125% Stiffer than stock)
Hole 3 = 840 lbs/in (185% Stiffer than stock)

Progress:Front Features
-Size: 33mm
-Adjustment Range: 3 holes
-Soft: 777 lbs/in Medium: 926 lbs/in Firm: 1054 lbs/in
-End-links Included: No

Rear Features
-Size: 22mm
-Adjustment Range: 3 holes
-Soft: 310 lbs/in Medium: 425 lbs/in Firm: 550 lbs/in
-End-links Included: No

I'm calling Motordyne to get specs, but how do I know what rate/stiffness I want?

How do the numbers compare in practicality? For example, Progress's firm setting for fronts is less stiff than the softest Hotchki's setting?

I want the handling benefits, but I'm ignorant of sway bars besides the general concept.

Thanks, guys.