Diamond Eye Performance MR400-SS 4-Inch 409 Stainless Steel Muffler Replacement Pipe

Diamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace. Mandrel bending and fabrication parameters are extensive, and a variety of tooling allows us to offer tube processing from 3/8" to 5"OD in both aluminized and stainless steel. Diamond Eye Manufacturing is located on a 23-acre complex and has immediate plans for expansion. Currently, the company utilizes over 60,000 sq. ft. for manufacturing components. Separate from the manufacturing facility, our Warehouse Distribution Center utilizes highly efficient shipping methods and a substantial amount of inventory to ensure rapid response times for delivering customer orders in a timely fashion. Our new state of the art Research and Development Center was established to keep pace with the ever changing automotive performance aftermarket. We have taken great care to outfit the facility with an array of testing equipment to provide our engineers with the information needed to design the best systems available. Many of the employees here at Diamond Eye Manufacturing have several years of experience within the industry. This wealth of knowledge and experience is tapped and transformed into results. Our promise to you is simply this, we will provide you with the highest level of customer service, quality parts, and best prices available to keep you competitive! Exhaust Muffler, PERFORMANCE DIESEL EXHAUST PART-4in. 409 STAINLESS STEEL PERFORMANCE MUFFLER REP Made in USA, Increased Performance, Aggressive Sound, Affordable

The Diamond Eye Performance MR400-SS muffler replacement pipe is designed for performance diesel exhaust applications requiring durable 4-inch tubing and a direct replacement solution. Constructed from 409 stainless steel, this component provides dependable resistance to corrosion and heat while supporting long-term use in demanding exhaust environments. Its polished, fabricated design reflects Diamond Eye Performance’s focus on quality manufacturing and consistent fitment.

Built for increased performance and an aggressive exhaust sound, the MR400-SS is an affordable choice for replacing a worn or damaged muffler section. Diamond Eye Performance uses CNC mandrel bending and precision fabrication processes to produce exhaust components with smooth bends and reliable dimensional consistency. The company’s extensive tooling supports high-quality exhaust manufacturing for automotive performance applications.

This muffler replacement pipe is made in the USA and is supplied as one component. It is intended for off-road and performance use where applicable and is not CARB approved. Confirm vehicle compatibility, exhaust configuration, and local emissions requirements before installation. Professional installation is recommended to ensure proper alignment, secure connections, and leak-free performance.

What's Included: One Diamond Eye Performance MR400-SS 4-inch 409 stainless steel muffler replacement pipe.

Features:

• 409 Stainless Steel Construction: Provides durable performance and resistance to corrosion and exhaust heat.
• 4-Inch Exhaust Application: Designed for compatible performance diesel exhaust systems using 4-inch tubing.
• Aggressive Exhaust Sound: Supports a more assertive exhaust tone when used in a performance exhaust system.
• Made in the USA: Manufactured by Diamond Eye Performance using precision fabrication and CNC mandrel bending processes.

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1