I ran a 35/40 over a 3b without a brace and ended up with 2 cracked exhaust manifold ears on the head of my engine... I would build one. I have a 3b, 3bmount, hotpipe, oil lines, charge pipe, drain lines, and downpipe for sale on here. Thing is, if you already have a hotpipe made, you have to make a 3b mount and charge pipe to fit your particular application because not every hotpipe is the same.