15's are ok but indeed they need just alittle to much space and box for my likings of rides...
12's I'ce normally run and have alot of good outcome w/ them.
I'm now experimenting w/ a 10 but I might up that to 3-10's in a fabricated box in the spare tire area...
12's or 10's...
SPL ALOT of 12's or 15's....:
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