ISR Performance Couplers and Clamps - T-Bolt Hose Clamp - 3.50"+8mm

Step up to the 3.50 inch plus 8mm ISR Performance T-bolt hose clamp when your charge piping or intake tube moves into larger-bore territory. Bigger couplers see more surface area under boost, which means more force trying to push them off the pipe, and a T-bolt clamp is the straightforward way to keep that joint locked down.

Construction Notes

• Full-circle band with a bolt-and-trunnion tightening mechanism rather than a worm screw.
• Clamping pressure is distributed around the entire coupler, which reduces the chance of a leak at one spot.
• Reusable: loosen, remove, reinstall without deforming the band.

Which Size Do You Need

The 3.50 inch plus 8mm designation refers to the coupler outside diameter the clamp is intended to grip. If you are running 3.5 inch piping with a silicone coupler on top, this is the size that lands in the middle of the clamp range. Measure the assembled coupler before ordering if you are unsure.

Compatibility

Universal fitment for any 3.5 inch coupler joint, commonly found on larger intercooler end tanks, big single turbo intake pipes, and aftermarket cold air intake kits.

Fitting It

Slide the clamp onto the coupler before pushing the coupler over the pipe. Tighten evenly, then check again once the engine has been up to operating temperature.

All ISR Performance products are designed for off-road use only.