3.5" to 4" Silicone Coupler

3.5" to 4" Silicone Coupler.

3.5" to 4" Silicone Transition Coupler Full Race 3.5" x 4" Silicone straight couplers are perfect for use in the turbo intake on Precision Turbos, BorgWarner EFR 8474, 9280, S300 SX-E and all Garrett G Series and GTX turbos. Constructed from 4 ply silicone with a .

Manufacturer part number: FR-UNI-SIL-3.5/4. Confirm your vehicle, engine and selected configuration before ordering.

Manufacturer specifications and installation information