This bumper is entirely custom and is definitely not your typical store bought bumper. The main frame tubing is sched. 40 1 5/8 and the x strut and side supports are 1 1/2 inch tubing that is a slightly thinner wall. It's not finished yet but it definitely will be in the very near future. Pm me a pic of your Coilovers and we can see if a deal can be made. Will post more pics when the bumper is done..