Hedman 2-1/2" Inlet to 2-1/2" OD Outlet Collector Reducer 3-Bolt Ball and Socket Flange Hardware Steel - Aluminized 23-TR1-N-L Typical dyno tested horsepower gains

Typical dyno tested horsepower gains average 10-15 and 15-20lb-ft of increased torque

Made of 6061 Aluminum so it's light weight yet durable

Voltage Reducer

Small block chevy

Hedman 2-1/2" Inlet to 2-1/2" OD Outlet Collector Reducer 3-Bolt Ball and Socket Flange Hardware Steel - Aluminized 23-TR1-N-L Typical dyno tested horsepower gainsHedman Hedders 2 1 2" Aluminized Steel Collector Ball Flange Kit Hedman Hedders has been manufacturing quality headers and exhaust components in the USA since 1954. Each member company of the Hedman Performance Group is a specialist in the field they serve. Hedman hedders specializes in headers, Trans Dapt Engine transmission swap mounts, and Hamburger's focuses on oil pans. Exhaust Header Reducer Gasketless Collector Design Aluminized Steel