Gates PowerGrip SB73 Clamp for Hose O.D. 2-3/4 to 3 SR57.51-BLACK so this hose is popular

so this hose is popular as engine intake plumbing on normally-aspirated applications

5mm wall thickness (91mm / 3 9/16" OD) and a working pressure rating over 15 psi (78 psi burst pressure)

The single-ply fabric reinforcement makes it relatively soft and very flexible

The 3-ply reinforcement results in a working pressure rating in excess of 38 psi and a 4

It is designed specifically for connecting 3 1/2" (89mm) OD metal intake pipes

Gates PowerGrip SB73 Clamp for Hose O.D. 2-3/4 to 3 SR57.51-BLACK so this hose is popularRevolutionary Gates PowerGrip SB hose clamps eliminate the need for screwdrivers and even the need for retightening! The special heat shrink polymer sleeves create a tight seal with uniform pressure all around your hose, even if the fitting is out of round. PowerGrip clamps resist loosening throughout repeated heat cycles, making them maintenance free. They eliminate a lot of metal and sharp edges under the hood. On top of all that, they look super