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Fits Holden 304 V8 Engines
as the exhaust system heats up and expands during use
Each merge collector is cast meaning no welds can potentially crack over time
Top Dead Center sensor (TDC) Intake Side
Stainless Steel 4 into 1 Merge Collectors Model:2-1/4" Primary's into 4" Collector Outlet AF4250-450 Fits Holden 304 V8 EnginesAeroflow 4 into 1 merge collectors are made out of T304 stainless steel that is durable enough to stand up to the elements and combine high flow and high velocity to increase and broaden an engines torque curve. The hand porting inside the collector ensures unrestricted, smooth exhaust flow to prevent power loss and excessive backpressure. Inlets are all measured Inside Diameter enabling the tube to easily slip in. Outlets are measured Outside
