Bawatrading 3″ to 4″ ID Transition Reinforced Silicone Coupler (Black)

Silicone Reinforced couplers for turbo and supercharged applications! ?These 5 layer couplers are proven, tested, and reliable! ?These are the same couplers we use on all of our own builds.
3″ to 4″?ID Transition by 3″ long
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Inlet I.D. -3″
Outlet I.D. – 4″
Length: 3″
Wall Thickness: 0.18″
Burst Strength: 40 psi
Color: Black