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Rubber Hose; K&N couplers are constructed from high-quality reinforced rubber and made to last. This coupler connects two 2-3/4 inch tubes and is 1-1/2 inches in length.

This Spectre Intake Coupler Reducer is designed to connect a 4 inch outside diameter component or air intake tube with a 3 inch outside diameter component or intake tube.

Rubber Hose; K&N couplers are constructed from high-quality reinforced rubber and made to last. This coupler adapts a 3-1/4 inch to a 3 inch tube and is 2 inches in length.

Rubber Hose; . K&N couplers are constructed from high-quality reinforced rubber and made to last. This coupler connects two 3 inch tubes and is 1-3/4 inches in length.

This Spectre Intake Coupler Reducer is designed to connect a 4 inch outside diameter component or air intake tube with a 3 1/2 inch outside diameter component or intake tube.

Rubber Hose; K&N couplers are constructed from high-quality reinforced rubber and made to last. This coupler connects two 2-1/2 inch tubes and is 2 inches in length.

Rubber Hose; K&N couplers are constructed from high-quality reinforced rubber and made to last. This coupler adapts a 3-1/4 inch to a 2-1/2 inch tube and is 2 inches in length.

AEM hump hoses allows for a flexible joint in between air intake and intercooler tubes. Made from durable EPDM rubber, this hump hose coupler can withstand high working temperatures and is corrosion resistant to fuel and oil.

AEM silicone hose couplers are designed to connect air intake tubes for racers, builders and fabricators to create custom ducting for turbocharger systems and air intakes. AEM couplers are constructed from reinforced, multi-ply silicone.

Rubber Hose; K&N couplers are constructed from high-quality reinforced rubber and made to last. This coupler connects two 3-5/8 inch tubes and is 2-1/2 inches in length.

AEM silicone hose couplers are designed to connect air intake tubes for racers, builders and fabricators to create custom ducting for turbocharger systems and air intakes. AEM couplers are constructed from reinforced, multi-ply silicone.

Rubber Hose; K&N couplers are constructed from high-quality reinforced rubber and made to last. This coupler connects two 3-3/4 inch tubes and is 1-3/4 inches in length.