I recently installed Bilstein Damptronic coilovers on my 997 C2S and love its look and handling.
I will see what happens once I get alignment and height adjustment.

 

By the way, I have a question on height adjustment method for Damptronics.

I know it is height adjustable, but can it be adjusted manually by raising and lowering
the spring perch on the shock when it is on the car? Or should I pull it out to adjust its height?

Additionally, I'd like to know what is the best height setup with GT3 front bumper or with stock C2S bumper.

Any comments will be appreciated.

 

Did you DIY? How hard is it? Thanks.

Vic

 

Yes, I installed them myself. It was pretty straightforward.
It took approximately 6 hours, however, since I additionally
installed stainless brake lines and x51 headers.

Personally, installing rear coilovers were much easier than the fronts. Because I had to disassembled all most everything to pull out the front stock coilovers.

PM me whenever you have a question.
Good luck with your DIY.