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!

4" ID by 3" long

Inlet I.D. - 4"

Outlet I.D. - 4"

Length: 3"

Wall Thickness: 0.18"

Burst Strength: 40 psi

Color: Black