I'm going to build my own because I know EHR won't make it the diamter or tuning I'd want it. I'm going to measure today, I don't know how much space I'll have to go ported, but I'm crossing fingers

. How much smaller of a diamter screw to predrill? What is a double baffle? I've always wondered, does the shape of a box change the sound, even slightly? Should I forward or rear fire? Which way should a port face (rear seat folds down btw)? Can I get box designs on here?