Diamond Eye Performance Diamond Eye Muffler Replacement Pipe 4in 30in LENGTH SS MR400-SS
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Diamond Eye Muffler Replacement Pipe 4in 30in LENGTH SS MR400-SS

DEP510210
841963117684
Muffler Delete Pipes
2 Units In Stock - Ships Next Business Day
$ 149.24
$ 149.24

SKU: 510210 | UPC: 841963117684

Diamond Eye Muffler Replacement Pipe 4in 30in SS MR400-SS Universal 4" Exhaust Fit

Replace your stock muffler with the Diamond Eye MR400-SS stainless steel straight pipe measuring 4 inches diameter by 30 inches long. This universal component fits 4" exhaust systems on heavy-duty diesel trucks including Ford Super Duty, Chevy Silverado HD, GMC Sierra HD, and Ram trucks for improved exhaust flow and deeper exhaust note. Mandrel-bent construction ensures smooth unrestricted flow and easy installation.

Key Features

  • Stainless Steel Build – 16-gauge 409 stainless resists corrosion and withstands high heat
  • Mandrel Bent Design – Eliminates crimps for maximum exhaust flow
  • 4 Inch Diameter – Matches turbo-back and downpipe systems precisely
  • 30 Inch Length – Standard size bolts directly in muffler position
  • Straight-Through Flow – Delivers aggressive exhaust tone and performance gains
  • USA Made Quality – Crafted with advanced CNC equipment

Specifications

Detail Value
Brand Diamond Eye
Type Muffler Replacement Pipe
Compatibility Universal 4" Exhaust Systems Diesel Trucks
Material 16ga 409 Stainless Steel
Diameter 4" Inlet / 4" Outlet
Length 30"
Weight 9 lbs
Country of Origin USA
Warranty Limited Lifetime

Whats Included

  • 1 x MR400-SS 4" x 30" Muffler Replacement Pipe

Product Notes

  • Polished stainless finish available on select units
  • Bolt-on replacement no welding required
  • Enhances throttle response through better scavenging

This Part Fits

Year Range Make Model Notes
1999-2023 Ford F-250 Super Duty, F-350, F-450, F-550 4" Exhaust Muffler Position Powerstroke
2001-2023 Chevrolet / GMC Silverado 2500HD / 3500HD, Sierra 2500HD / 3500HD 4" Exhaust Muffler Position Duramax
2003-2023 Dodge / Ram 2500, 3500, 4500, 5500 4" Exhaust Muffler Position Cummins / HEMI

Why Choose Diamond Eye?

  • CNC mandrel bending machines for precise tubing
  • 60,000+ sq ft manufacturing complex in USA
  • R&D center with dyno testing equipment
  • Industry-experienced team ensures reliability
  • Large warehouse for fast order fulfillment

Frequently Asked Questions

  • Q: Is the MR400-SS a direct muffler replacement?
  • A: Yes it bolts in place of most 4" mufflers on diesel trucks
  • Q: What gauge steel is used?
  • A: 16-gauge 409 stainless steel for strength and durability
  • Q: Will it change my exhaust sound?
  • A: Straight pipe design produces a louder deeper tone with more flow

Shipping & Handling

  • Method: UPS Ground / FedEx
  • Availability: In stock – ships same or next business day
  • Packaging: Sturdy cardboard box 32in x 6in x 6in approx 10 lbs shipped

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Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

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