With the bolts , washer then lock washer!! No washer on the car side !!!😊😊

Bolt, lock washer , washer... then through the hole. The lock washer grabs on the head of the bolt and washer to "lock it". Bumper mod looks great, did you or the PO shave the rear also? How they shaved the holes will be fine until there is an impact or if the holes are visible through the paint. Im shaving the rear bumper on my 86 951, using short strand fiberglass filler and smoothing out with reg body filler.. one of my bumper shocks is seized also, prob gonna saw off the back of the shock and tack weld the sliding portion where i want it. Wont be as light as the custom ones you bought, but will be free. Great job!!

When I did the bumper mod on my wife's 924s, i compressed the shock in a press 2 inches and zip tied them at that length works great and FREE !!!!

Tbh i was thinking about this but i saw they make a 944 turbo front bumper for the NA cars gonna give that a try

Where did you get your splitter from?