Redline Restomotive® 1957-2002 GM Car & Truck 2.5" Exhaust Pipe Donut / Seal

The 1957-2002 GM Car & Truck 2.5" Exhaust Pipe Donut / Seal is a high-temperature gasket designed to ensure a tight, leak-proof connection between exhaust pipe flanges in classic and modern GM vehicles. Perfect for ball-and-socket or flange-style connections, this exhaust seal absorbs heat and vibration while maintaining proper backpressure and exhaust flow. Built from high-quality, heat-resistant materials, it fits 2.5-inch diameter exhaust systems and is ideal for both restoration and custom applications.

• Fits 1957-2002 GM cars and trucks with 2.5" diameter exhaust systems
• Measures 2.5" ID x 3" OD x 5/8" thick
• Seals exhaust flanges or ball-and-socket joints to prevent leaks
• Made from durable, heat-resistant materials for long-term reliability
• Helps maintain proper exhaust backpressure and engine efficiency
• Reduces noise, fumes, and undercarriage vibration
• Perfect for restorations, maintenance, or custom exhaust upgrades

Installation:
Difficulty: 2/5 – Requires basic tools and access to exhaust flange connections.
Instructions: Remove the old donut or seal and clean the flange surfaces thoroughly. Insert the new donut between the exhaust flanges or into the ball joint. Reassemble and tighten bolts evenly to compress the seal and ensure a snug fit. Start the engine and inspect for any leaks or rattles, adjusting as necessary.

Redline Restomotive® has established itself as a premier brand in the world of classic car restoration, providing enthusiasts with high-quality parts that meet the exacting standards of original manufacturer specifications. Dedicated to the preservation of American automotive history, Redline Restomotive® combines advanced manufacturing techniques with an in-depth understanding of vintage vehicles. The result is a range of products that seamlessly blend into the design and function of classic cars, giving restorers and collectors the assurance that each part reflects the era’s style, quality, and performance.

Crafted for both durability and aesthetic accuracy, Redline Restomotive® parts are ideal for those who value authenticity in their restoration projects. Whether restoring a car for display, personal enjoyment, or roadworthiness, customers rely on Redline Restomotive® for parts that not only fit perfectly but also contribute to the overall integrity and longevity of the vehicle. Each item is carefully engineered to replicate the fit, finish, and functionality of original components, making Redline Restomotive® a trusted name in restoration circles.

The extensive product catalog from Redline Restomotive® covers a wide variety of categories, allowing classic car owners to source everything from essential mechanical parts to subtle interior details. This comprehensive approach enables a cohesive restoration experience, where customers can confidently maintain both the exterior and interior authenticity of their vehicles. With Redline Restomotive®, every detail matters, providing the perfect balance between innovation and tradition for classic car preservation.

For more information or to explore their product offerings, you can visit retailers such as Muscle Cars & Classics, which feature a comprehensive selection of Redline Restomotive® products.

Vehicle Fitment:

Reviews:

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