which is the better option for 996tt?
HR is $240 and GT2 is $310
GT2 is lighter
any other difference?

i read that there is no need to change out the front

 

I'm thinking of getting the Gt3 rear sway.

 

I just had front and rear H&R sways installed, only got to drive the car hard briefly and notice right away the front end feels like its not pushing/ sliding out like it did previously, stays more planted and goes where you point.... not sure why you feel you don't need the front?

 

Conventional wisdom is to stiffen the rears to reduce understeer, nominally increase oversteer and increase handling sensitivity with throttle application. Contrarily, especially with an awd platform, racing wisdom is to stiffen the fronts (relative to the rears) which improves turn in and tracking. That's what you're really after. Simply put, you need the front sways, keep an open mind on your initial set up and see what works best for you in the conditions you drive in. Best,

Opposing perspectives are always welcome....

 

go with gt2 as its hollow