SPL Blazer
10+ year member
SPL Event Promoter
G-Force enclosures makes some of their enclosures with a great interchangeable port. If you know the vehicles resonant freq they can make a slot ported enclosure tuned to that freq and a port that slides into that slot port to reduce the size and change the freq for music if needed. I saw a couple of them at some comps and they were really easy to swap out and they were hitting some decent numbers.
