These are stainless socket cap replacement bolts for your M90 supercharger. Make sure to select the intercooler thickness that you have or just select the generation of blower you have for no intercooler.

These are the same stainless bolts that now come standard with all of our ZZP intercooler kits. They are top quality and will not rust. 6mm socket head. Washers included for doweled holes.

Some bolts on Gen 5 kits do not have socket heads as they are not available in the very long lengths.