40 Series - 2.25 Offset In / 2.25 Offset Out - Aggressive Sound 1990-chevrolet-g30-esi2016615 438 in D - Dual

438 in D - Dual Fans - Passenger Side Inlet - Passenger Side Outlet - Aluminum - Natural - GM A-Body / G-Body 1963-88 - Kit

Oil Filter Adapter - Sandwich - Bolt-On - 1/2 in NPT Female Inlet - 1/2 in NPT Female Outlet - 13/16-16 in Filter Thread - Small Block Chevy - Each

Stud - 8 mm x 1

Motor Oil - Imperial Turbo - 5W20 - Semi-Synthetic - 1 qt Bottle - Set of 12

Side Window Visor - Low Profile Ventvisor - Stick-On - Front / Rear - Plastic - Smoke - Double Cab - Toyota Midsize Truck 2016-23 - Kit

40 Series - 2.25 Offset In / 2.25 Offset Out - Aggressive Sound 1990-chevrolet-g30-esi2016615 438 in D - DualThe Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound, this is the muffler for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.