4.00" Block off Plate - 304540-1

4.00" Exhaust Cutout Block-Off Plate – Direct Replacement | Part #304540-1

The Granatelli Motor Sports 4.00" Exhaust Cutout Block-Off Plate (Part #304540-1) is designed to provide a secure, dependable seal for compatible 4.00-inch exhaust cutout systems. Whether you're deleting an exhaust cutout, replacing a damaged plate, or completing a custom exhaust project, this precision-built replacement offers the fit and durability needed for long-lasting performance.

Built for high-performance exhaust applications, the 304540-1 helps seal the exhaust cutout opening while maintaining a clean, factory-quality appearance. Its rugged construction is designed to withstand the extreme temperatures and harsh conditions commonly found in street, off-road, and racing environments.

Features & Benefits

• Direct replacement block-off plate for compatible 4.00" exhaust cutout systems
• Seals the exhaust cutout opening when the cutout assembly is not installed
• Precision-manufactured for excellent fit and reliable sealing
• Heavy-duty construction built for high-temperature exhaust systems
• Ideal for exhaust repairs, maintenance, and custom fabrication projects
• Provides a clean, finished look to your exhaust system

Package Contents

• One (1) 4.00" Exhaust Cutout Block-Off Plate

Note: This product includes the block-off plate only. Gasket, mounting hardware, Y-pipe, exhaust cutout assembly, electric motor, wiring components, and all other accessories are sold separately.

Designed for Dependable Fitment

Whether you're restoring an existing exhaust system or fabricating a custom setup, the 304540-1 provides a simple and effective solution for closing an unused exhaust cutout opening. Precision construction ensures dependable fitment and lasting durability for years of reliable service.

Trusted Granatelli Motor Sports Engineering

For decades, Granatelli Motor Sports has developed innovative performance products trusted by enthusiasts and professional builders worldwide. Every replacement component is engineered to meet high standards of quality, reliability, and performance, giving you confidence in every installation.