Did a straight up spl built for my brother in law in his 06 Colorado extended cab, two HDC3 v3 15s off AQ3500d.1, run off d3400 underhood and kinetik 2000 about 6 inches from the amp. Stock alt, 1 run of 1/0 wire between batteries and zero deadener in the truck. Got pics to post later, but it is a no wall build below the window once we put the battery and amp in the bed, as of right now just sitting on the box. Box is subs forward port up in the back. At midwestspl show last weekend did 152.7 on dash driver door open. In kick outlaw later that night testing did a 154.8 db.
Dash door open @50 hz 152.7
Outlaw in kick @55 hz 154.8
3x STREETBEAT World Record Holder
-Streetbeat 4 - 161.9 db
-Streetbeat 5 - 162.6 db
The Black Nasty (SOUNDQUBED)- 160+ db