AVAILABLE IN ALL LENGTHS.ADDS: DOUBLE PASS COOLER $ 279.95. ULTRA RUNNING BOARDS $ 332.95 POWDER COATING $ 199.95. CANDY COLORS $ 249.95. RIVET KIT $ 68.95. PLUS SHIPPING. NOTE: EACH OF OUR TUNNELS ARE CUSTOM BUILT FOR YOUR CHASSIS.DEPOSIT REQUIRED AND NON REFUNDABLE $ 500.00.