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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