Hedman Street Headers - 1.75 in Primary - 3 in Collector - Metallic Ceramic - Big Block Chevy - GM Fullsize SUV / Truck 1967-91 - Pair Quick Detailer 2-1/2 in Pin 5x5 GN

2-1/2 in Pin 5x5 GN Hubs

1964-1967 Oldsmobile F85 CID 294 4

The rpm activation points are programmed by simply scrolling through the LED display to your desired rpm amounts

or 10 Series Ignition

Hedman Street Headers - 1.75 in Primary - 3 in Collector - Metallic Ceramic - Big Block Chevy - GM Fullsize SUV / Truck 1967-91 - Pair Quick Detailer 2-1/2 in Pin 5x5 GNHedman Hedders HTC Coated Headers; 1 3 4" Tube Diameter; 3" Collector; Full Length Design Hedman Hedders HTC Hedders Exhaust Header 69116 Tube Size 1. 75 in. Collector Size 3 in. w o Smog Injection Or Injection Heads Thermal Protection Up To 1300 Deg. Will Not Chip Or Peel More Durable Than Chrome Will Not Blue Or Discolor Easy To Clean Better Heat Insulation Guaranteed Against External Rust Through Best High Temp Coating On The Market Today Hedman