Mishimoto Silicone Coupler - 2.5in w/ 1/8in NPT Bung

Part #: MMCP-25NPTBK

Overview

The Mishimoto Silicone Coupler with a 2.5-inch diameter and integrated 1/8-inch NPT bung is a versatile and durable component designed for high-performance automotive applications. Crafted from high-quality silicone, this coupler offers excellent heat resistance, flexibility, and longevity, making it ideal for custom piping, intercooler setups, or turbocharger connections. It is suitable for enthusiasts and professionals seeking reliable, leak-free connections that can withstand demanding conditions. The inclusion of the NPT bung allows for easy installation of sensors, gauges, or other accessories, enhancing your vehicle’s monitoring capabilities and overall performance support. This silicone coupler is engineered to provide a secure, flexible seal while resisting cracking, hardening, and degradation over time. Its robust construction ensures consistent performance under high temperatures and pressure, helping maintain optimal airflow and system integrity. Whether you're upgrading your turbo system or customizing your intake piping, this coupler offers a practical solution that combines durability with ease of use.

Key Features

This silicone coupler is designed with the following features:

• Made from high-grade, heat-resistant silicone material
• Flexible and durable for long-lasting performance
• Includes a 1/8-inch NPT bung for sensor or gauge installation
• Resists cracking, hardening, and chemical degradation
• Designed to withstand high temperatures and pressure
• Perfect for custom intercooler, turbo, or intake piping applications
• Easy to install with a secure, leak-proof fit

Construction & Design

Constructed from premium silicone, this coupler features a smooth inner surface for minimal airflow restriction and a reinforced outer layer for added strength. The integrated NPT bung is precisely machined to ensure a tight, leak-free seal when installing sensors or fittings, supporting accurate monitoring and diagnostics.

Installation & Fitment

Designed for a 2.5-inch diameter piping, this coupler is a straightforward, slip-on component that requires no special tools for installation. The flexible silicone material allows for easy alignment and secure fitting onto compatible pipes, while the NPT bung can be used to add sensors or other accessories without compromising the seal.

Ideal For

This coupler is ideal for automotive enthusiasts and professionals upgrading or customizing turbo systems, intercooler piping, or intake setups. It supports reliable performance and system monitoring, making it suitable for both street and track applications.