There isn't too much concrete information on this.

Im considering lowering my 911 C2S that has S-PASM (so that aftermarket wheels dont look so goofy)... but no one is really clear much much lower Techart/HR etc goes past S-PASM.

Anyone have hard numbers?

 

seems like TechART are approx 10mm and apparently HR are even lower...

 

Thank you, but you do mean mm correct?

so about .39in over S-PASM.

 

sorry yes (corrected mistake)

BTW I recall reading in another thread someone had some HR springs to sell...

 

...following

 

From what I've read online...the TechART one will lower approx. 10-13mm from the factory ride height on cars with S-PASM.

Not sure about the H&R....But another RL'er swapped out this H&R for TechART due to the car being too low & sagging frm front to back.

https://rennlist.com/forums/991/8810...s-finally.html

 

thanks that was the post I was referring to!