High-Temp 4-Ply Silicone Hose Couplers with Stainless T-Bolt Clamps

Don't let a blown-out coupler end your track day. ProFlow Exhaust High-Temp 4-Ply Silicone Hose Couplers are engineered for high-performance forced induction and heavy-duty intake systems. Featuring a reinforced multi-layer design and a striking red interior, these couplers provide the perfect balance of flexibility and extreme pressure resistance.

Each coupler comes complete with two heavy-duty stainless steel T-bolt clamps, ensuring a professional, leak-free seal that standard worm-gear clamps simply can't match.

Performance Specifications

• Reinforced 4-Ply Construction: Built with four layers of high-grade silicone and heat-resistant embedded fibers to prevent expansion and "ballooning" under high boost.

• Dual-Tone Aesthetics: Classic black exterior for a clean engine bay look with a high-visibility red interior for added durability.

• Extreme Temperature Range: Rated for temperatures ranging from -65°F to +350°F, making them ideal for turbocharger outlets, intercooler piping, and cold air intakes.

• Heavy-Duty T-Bolt Clamps: Includes two 100% stainless steel T-bolt clamps for superior clamping force and a professional finished look.

Why Upgrade to 4-Ply Silicone?

Standard rubber hoses dry out, crack, and fail over time—especially when exposed to engine heat and oil vapor. Our silicone couplers are:

1. Pressure Rated: Designed to handle high-boost applications without leaking.

2. Vibration Dampening: Absorbs engine movement to prevent stress on your aluminum intake or intercooler piping.

3. Chemical Resistant: Resists degradation from coolant, oil, and ozone for a longer service life.

Available Sizes

We offer precision fitment for a variety of builds:

• 2" (51mm)

• 2.5" (63mm)

• 3" (76mm)

• 4" (102mm)