1968-1974 Oldsmobile Cutlass (not Supreme)/442 350-403ci Standard Headers Primary Tube Collector Size 1.75 in. x 3 in.

Part Number: 11150FLT

Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16" flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat resistant black paint for a stealthy appearance.

Features and Benefits

• Fuel Economy From The Engine
• Leak Test For Max Performance
• Mandrel-Formed Power Plenum
• Leakproof O-Ringed Port Seals
• Include All Mounting Hardware
• Constructed of .049 cold roll flash mild steel tubing
• Precision engineered for fit, performance and economy

Recommended replacement gasket - Mr. Gasket part# 453_x000D_ _x000D_ Must modify exhaust system to retain catalytic converters.