Not very often you come across someone that uses the same enclosure over and over again. What happens if it's nice looking aka, painted, carpeted, etc.
Hence why a new enclosure needs to be built.
iirc, TaylorFade has an adjustable enclosure for testing purposes. He's showed pics of it. Basically, a slide in/out type. That way, you can shrink cf ft or increase it.
'97 4 dr. Tahoe
Polk Audio MM6501
Wolfram amps 3000.1, 125.4 coming soon
2 Sundown Audio X 15's Tuned @ 30Hz.
Interstate battery/Royal Excelene/KnuKoncepts Kolossus wiring