This Demon model features flat rack detachable design, spun steel trumpets (18.25 inches, 14.75 inches, 10.5 inches) and extreme flow, heavy duty brass solenoid valve. XCR 2.0-coated black coating ensures that they will withstand heat, sun, UV and salt spray. Fully upgradeable with the Ultra BlastMaster part number 6890 for a truly earth-shaking experience.