[John V]

Originally Posted by blue2000s

It's larger than the M030 front bar. TRG makes a kit that looks close to the H&R.

Eibach makes a kit as well that looks like it's close to the M030 in stiffness.

http://www.livermoreperformance.com/porsche_arb.html

I know I've mentioned this before, but both the H&R and Eibach bars are SOLID! They are both WAY stiffer than the GT3 bar. And in my opinion, way too stiff for a Boxster.

The GT3 and M030 bars are just like stock - hollow - but stiffer.