3″ to 2.5″ Bolt On Collector Reducers


Hooker 3 Bolt Flange Reducer 11040HKR

SKU: HKR11040HKR Category:

These Hooker reducers adapt header flanges to exhaust systems. Their size matches the diameter of the header collector and the exhaust tube size; and they can be clamped or welded. They also are available with oxygen sensor holes for emission applications.

Weight 2.1 lbs
Dimensions 8.7 × 5.9 × 6.1 in



Manufacturer Part Number


3″ to 2.5″ Bolt On Collector Reducers

Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to