..... The thing I like about their front setup in that there in no shock tower strengthening required. I seem to remember it needed significant shock tower work.
top 2 reasons why HDK maintains the OEM upper shock mount, adds a re-enforced upper shock mount with chromoly support hoops
a) without the shock mount hardware in the wheelhouse the HDK upper shock mount / chromoly support hoops affords a considerably narrower track width preferred on most street rides.....with ZERO failures. For a decade, HDK has sold RMS / Alter K owners that removed their shock mounts, added the HDK upper shock mount package and removed / shortened their control arms approx 1".
b) ability to use shocks with greater travel. The greater the travel, the longer the spring. HDK contends that combination affords a better, less harsh ride.
BTW.... tried and proven method is also used on the HDK coil over only package handy when additional room in the engine compartment is needed....or required