[Mountain]

Originally Posted by Mountain

The BMR and Hotchkiss bars are stated as this:

BMR
Adjustable: F 33%/65%/96%, R 73%/99%/125%
Non-Adjustable: F 62%, R 52%

Hotchkiss
Adjustable: F 40%/65%/90%, R 25%/35%/50%

The FE4/SS 1LE/ZL1 sway bars are about 21% and 36% (F/R) stiffer than FE3/SS.
https://www.camaro6.com/forums/showt...0#post10036310

The aftermarket companies typically produce off of the SS variant. It is said that the Hotchkiss bars are actually designed off the FE4/SS 1LE bars, even known their description specifically states the rates are in comparison to the SS. BMR's is off the FE3/SS.
https://www.camaro6.com/forums/showt...3#post10341523

For those asking why not replace both: Keep in mind that most aftermarket companies will sell a spring package, in which they will sway their bars bar designs to match their springs. Each company also has a different design goal/mindset on suspension balance.

Missed this other tid bit:
https://www.camaro6.com/forums/showp...&postcount=118

With that in mind, this is what I can say from the rates:

(over SS 1LE)

BMR
Adjustable: F 6%/34%/69%, R 46%/70%/98%
Non-Adjustable: F 41%, R 16%

Hotchkiss
Adjustable: F 40%/65%/90%, R 25%/35%/50%

Ryephile has used the Hotchkiss/BMR (F/R) setup, commenting that is seemed to provide the ability to keep the factory balance, yet up the roll stiffness some.

For track guys, going to a Hotchkiss/BMR (F/R) adjustable setup gives a 3-adjustment windows, allowing an about equal increase front and rear all-together or to provide slight balance adjustments between front and rear [from the factory balance].

For autox, street ("stock") classing, if you're going to change one bar, the front is the choice (to quicken the steering and help direct weight onto the rear tires). To me, it seems the Hotchkiss or the BMR adjustable is a fine choice. Some may determine the stock isn't fast enough, and want a decent jump up; so they might as well swap to a bar that starts you off with a significant improvement - the Hotchkiss. On the other hand, choosing the BMR adjustable allows you to retain the possibility of the stock stiffness (approximately) in your adjustability range and giving two additional adjustment levels. The non-adjustable is fine if you just feel like you need a decent bump up front and don't want to mess with it. I would choose the BMR adjustable for autox street ("stock") class unless there is some proven evidence that an increase of 40% is the place to be. Still, 90% seems stupid excessive over the stock SS 1LE front bar (by itself). The stock SS 1LE bar is pretty good - I find 90% pointless. So the BMR sounds like a better option, still: +6%, +34% and +69%.

The Hotchkiss rear bar is a good choice if you feel you, for whatever reason, need some increased stiffness in the rear and want some adjustability. The BMR non-adjustable rear gives you a minor bump in the rear, while the adjustable is a bit too strong of a bar in general (by itself).