Reducers

Flowmaster Performance Exhaust R3025 Venturi Reducer Cone 3" ID 2.5" OD

Forms smooth transitions from one pipe diameter size to another. Available in various sizes.

5" ID to 4" OD Diesel / Race Exhaust Reducer / Adapter / Coupler

Upgrade or adapt your exhaust system with the AP Exhaust 8965 reducer coupler, designed to connect 5 inch outside diameter exhaust tubing to 4 inch inside diameter tubing. This coupler features a 5 inch inside diameter on one end to slip over 5 inch OD...

4" OD to 3.5" ID Diesel / Race Exhaust Reducer / Adapter / Coupler

The AP Exhaust 9332 reducer coupler is designed to connect a 4 inch exhaust component to a 3.5 inch exhaust pipe. One end of this coupler is 4 inch outside diameter, which is made to slip into a 4 inch inside diameter pipe, muffler, or other exhaust...

4" ID to 4" OD Diesel/Race Exhaust Reducer / Adapter / Coupler

The AP Exhaust 8991 connector is designed to make it easy to join two 4 inch exhaust pipes when one connection needs to slide over a pipe and the other needs to slide into a pipe. One end of this connector is 4 inch inside diameter, which slips over a 4...

3.5" ID to 3.5" OD Diesel/Race Exhaust Reducer / Adapter / Coupler

The AP Exhaust 8976 connector is designed to make it easy to join two 3.5 inch exhaust pipes when one connection needs to slide over a pipe and the other needs to slide into a pipe. One end of this connector is 3.5 inch inside diameter, which slips over...

3" ID to 3" OD Diesel/Race Exhaust Reducer / Adapter / Coupler

The AP Exhaust 8975 connector is designed to make it easy to join two 3 inch exhaust pipes when one connection needs to slide over a pipe and the other needs to slide into a pipe. One end of this connector is 3 inch inside diameter, which slips over a 3...

3.5" OD to 3" ID Diesel / Race Exhaust Reducer / Adapter / Coupler

The AP Exhaust 9333 reducer coupler is designed to connect a 3.5 inch exhaust component to a 3 inch exhaust pipe. One end of this coupler is 3.5 inch outside diameter, which is made to slip into a 3.5 inch inside diameter pipe, muffler, or other exhaust...

6" ID to 5" ID Diesel / Race Exhaust Reducer / Adapter / Coupler

Upgrade or adapt your exhaust system with the AP Exhaust 9335 reducer coupler, designed to connect 6 inch outside diameter exhaust tubing to 5 inch outside diameter tubing. This reducer features a 6 inch inside diameter on one end and a 5 inch inside...

3" OD to 2.5" ID Diesel / Race Exhaust Reducer / Adapter / Coupler

The AP Exhaust 9600 reducer coupler is designed to connect a 3 inch exhaust component to a 2.5 inch exhaust pipe. One end of this coupler is 3 inch outside diameter, which is made to slip into a 3 inch inside diameter pipe, muffler, or other exhaust...

4" OD to 3" OD Diesel/Race Exhaust Reducer / Adapter / Coupler

The AP Exhaust 9648 reducer coupler is designed to step down between two different size ID connections by using outside diameter ends. This coupler is 4 inch OD on one end and 3 inch OD on the other end, which means both ends are made to slip into...

4" ID to 3.5" OD Diesel/Race Exhaust Reducer / Adapter / Coupler

Upgrade or adapt your exhaust system with the AP Exhaust 8964 reducer coupler, designed to connect 4 inch outside diameter exhaust tubing to 3.5 inch inside diameter tubing. This coupler features a 4 inch inside diameter on one end to slip over 4 inch OD...

4" ID to 3" OD Diesel/Race Exhaust Reducer / Adapter / Coupler

Upgrade or adapt your exhaust system with the AP Exhaust 8963 reducer coupler, designed to connect 4 inch outside diameter exhaust tubing to 3 inch inside diameter tubing. This coupler features a 4 inch inside diameter on one end to slip over 4 inch OD...

3.5" ID to 3" OD Diesel/Race Exhaust Reducer / Adapter / Coupler

Upgrade or adapt your exhaust system with the AP Exhaust 8962 reducer coupler, designed to connect 3.5 inch outside diameter exhaust tubing to 3 inch inside diameter tubing. This coupler features a 3.5 inch inside diameter on one end to slip over 3.5...

6" OD to 4" OD Diesel/Race Exhaust Reducer / Adapter / Coupler

The AP Exhaust 9720 reducer coupler is designed to step down between two different size ID connections by using outside diameter ends. This coupler is 6 inch OD on one end and 4 inch OD on the other end, which means both ends are made to slip into...

4" OD to 3" ID Diesel / Race Exhaust Reducer / Adapter / Coupler

The AP Exhaust 9722 reducer coupler is designed to connect a 4 inch exhaust component to a 3 inch exhaust pipe. One end of this coupler is 4 inch outside diameter, which is made to slip into a 4 inch inside diameter pipe, muffler, or other exhaust...

3" ID to 2.5" OD Race Exhaust Reducer / Adapter / Coupler

Upgrade or adapt your exhaust system with the AP Exhaust 8960 reducer coupler, designed to connect 3 inch outside diameter exhaust tubing to 2.5 inch inside diameter tubing. This coupler features a 3 inch inside diameter on one end to slip over 3 inch OD...