if you dont have a boost gauge now would be a great time to get one. You already have all of the "cheap" modifications, next logical step would be a front mount.
The ones I usually do are cut to replace the CD pocket below or above the radio and are stainless steel panels... Autometer I believe carries/makes one for on top of any steering column... there are a lot of options out there overall. but I don't do fiberglass, CF, or plastic parts yet.