Mishimoto Silicone Transition Coupler

2011–2025 Subaru Forester / Subaru WRX / Dodge Durango / Jeep Grand Cherokee 2.75in to 3in

Part #: MMCP-27530RD

Overview

The Mishimoto 2.75-inch to 3-inch Silicone Transition Coupler is an essential upgrade for automotive enthusiasts seeking reliable and flexible connections within their intake, intercooler, or turbo piping systems. Crafted with high-quality silicone, this coupler provides a durable and heat-resistant solution that ensures a secure fit between different diameter hoses or pipes. Whether you're customizing your vehicle’s intake system, upgrading your turbo setup, or replacing worn-out connectors, this transition coupler offers a seamless connection that maintains optimal airflow and performance.

Designed for both daily drivers and performance enthusiasts, the Mishimoto silicone coupler helps support increased airflow efficiency, which can contribute to improved throttle response and overall engine performance. Its vibrant red color adds a sporty aesthetic to your engine bay, making it a popular choice for those who want both function and style. Built to withstand high temperatures and pressures, this coupler is a dependable component that enhances the longevity and reliability of your vehicle’s intake or intercooler system.

Key Features

The Mishimoto Silicone Transition Coupler boasts several features that make it a standout choice for automotive upgrades:

• Constructed from high-grade, multi-layer silicone material that offers excellent flexibility, durability, and heat resistance.
• Reinforced with embedded polyester fabric for added strength and shape retention under high boost and temperature conditions.
• Designed with a smooth internal surface to promote unrestricted airflow and reduce turbulence, supporting better engine response.
• Available in a vibrant red finish, providing a striking visual accent in your engine bay.
• Engineered to fit securely over 2.75-inch and 3-inch diameter hoses or pipes, ensuring a tight seal that prevents leaks and boost loss.
• Resistant to cracking, hardening, and aging, even after prolonged exposure to engine heat and chemicals.
• Ideal for use in turbocharged, supercharged, or naturally aspirated applications where reliable hose connections are critical.
• Perfect for custom builds, repairs, or upgrades requiring a transition between different pipe sizes.
• Backed by Mishimoto’s reputation for quality and performance, ensuring peace of mind with every installation.

Construction & Design

This silicone coupler features a multi-layer design that combines flexibility with strength. The inner layer is made from smooth silicone to facilitate unrestricted airflow, while the reinforced polyester fabric layers provide structural integrity and resistance to pressure. The coupler’s precise manufacturing process ensures a consistent, high-quality fit that aligns perfectly with standard 2.75-inch and 3-inch diameter hoses or pipes. Its vibrant red color is achieved through a durable, heat-resistant dye that maintains its appearance over time.

The coupler’s flexible nature allows for easy installation, accommodating slight misalignments and movement within the piping system. Its high-temperature resistance ensures it remains pliable and intact even under extreme engine conditions, making it suitable for high-performance applications. The design emphasizes longevity, withstanding the harsh environment of the engine bay without cracking or hardening.

Installation & Fitment

The Mishimoto 2.75-inch to 3-inch Silicone Transition Coupler is designed for easy, bolt-on installation. It fits securely over 2.75-inch and 3-inch diameter hoses or pipes, with a snug, slip-fit that requires no additional clamps or adapters. The flexible silicone material allows for straightforward positioning, and the coupler’s reinforced construction ensures it stays in place once installed. No cutting, drilling, or special tools are necessary, making it an ideal upgrade for DIY enthusiasts and professional mechanics alike.

• Simply slide the coupler over the respective hoses or pipes and secure with clamps if needed.
• Ensure the surfaces are clean and free of debris for optimal sealing.
• Check for proper fitment and seal before operating the vehicle.

What's Included

• One Mishimoto 2.75-inch to 3-inch Silicone Transition Coupler in red

Ideal For

• Performance upgrades involving turbo or intercooler piping
• Replacing worn or damaged hoses in the intake or boost system
• Custom engine bay modifications requiring a reliable transition between pipe sizes
• Enthusiasts seeking durable, heat-resistant silicone couplers with vibrant styling