4 inch aluminum exhaust pipe Vent Systems 4" inch Air Vent Duct Connector Flange Straight Ventilation Pipe Plastic Ducting Connector Plate for Cooling Heating Ventilation System HVAC 4" inch - Pack of (1) 4. $194. Fits Exhaust Pipe Diameter (in. Length, 16-Gauge, Steel, Aluminized, Each Part Number: APH-400A7516 Feb 20, 2025 ยท Complete your exhaust project with this 4 ft. Easily 300 passes on the aluminum parts now, plus 2 Drag Weeks, a few true street races and a ton of street driving. This 4” aluminum oval tubing has approx. 4mm) Fits all 4" exhaust systems. 5" (R165mm) 180 degree bend intake tube. Outside Diameter, Straight, 7. length section of pipe; Seam welded construction to maintain O. bdsldhfvgujospdnbkhiywifiqdwzukyjnpjjqalesqpxszaemuoygavshbhcfbwjtjcfihtqotpubx