Full Race 3" to 4" Transition Silicone Coupler FR-UNI-SIL-3/4

Full-Race 3" to 4" silicone transition couplers are constructed from high-quality 3 ply fiberglass reinforced silicone with a .110" wall thickness.

Commonly used for connecting a 4" intake to a 3" turbo or a 4" turbo to a 3" airbox or MAF sensor.  

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