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2-1/2" 304 Stainless Steel Construction: This axle-back exhaust system is constructed of 2-1/2" mandrel-bent 304 stainless steel tubing for maximum strength and durability
Weight is reduced by 7
Notched necks are designed for clamp in installation using 1" wide band style clamps 18330 (clamps not included)
Color-coded wiring for ease of installation
Boss Audio 8in 800W Amplified Subwoofer System w/ Enclosure - Single 1978-gmc-k25-suburban-base-esi3744807 2-1/2" 304 Stainless Steel Construction:The 8 inch Under Seat Powered Subwoofer from Boss Audio Systems features a low profile, IPX5 rated weatherproof enclosure with built in high power Class D amplifier. A quick and easy way to add a high powered subwoofer system to your audio system. Both high level (speaker level) and low level (RCA) type inputs are present, making this a universal solution for use with any head unit or other input source Features a low pass crossover and a subsonic
