Silicone Coupler Reducer 3.50" - 5.50" X 4.00"

🔥 3.50" to 5.50" Silicone Reducer Boot – 4.00" Long, 5-Ply High-Temp Reinforced for Diesel Boost Applications

This heavy-duty 3.50" ID to 5.50" ID silicone reducer boot is engineered for serious performance. Built from 5-ply reinforced high-temperature silicone, it’s strength-tested to withstand the extreme heat, pressure, and vibration of high-boost diesel systems. With a 4.00" overall length, this reducer offers a flexible and secure connection between mismatched intercooler or intake piping sizes—perfect for compound turbo setups and custom charge-air systems.

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🔧 Key Features:

• Inside Diameter: 3.50" to 5.50"

• Overall Length: 4.00"

• 5-ply reinforced high-temp silicone construction

• Strength-tested to handle extreme diesel boost and vibration

• Heat-resistant, oil-resistant, and pressure-rated

• Smooth internal surface for unrestricted airflow and easy installation

• Ideal for compound turbochargers, intercooler transitions, and high-performance intake systems

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📦 What’s Included:

• 1x 3.50" to 5.50" x 4.00" High-Temp Silicone Reducer Boot (Black)

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Engineered for maximum durability and performance, this reducer boot is the ultimate solution for adapting large-diameter piping in high-boost diesel and racing applications.