Is there a significant difference in sound between a Racepipe exhaust with and without a muffler?

Yes, there is a significant difference. The version with a muffler provides a deep, full, and more controlled diesel sound, helping reduce harsh high-frequency noise and cabin resonance. The version without a muffler is louder and more aggressive, typically suited for track-oriented use.

Will a muffler affect performance?

The performance difference is generally negligible, as the system is still designed to maintain efficient exhaust flow.

Does the ECU need to be reprogrammed after installation?

Yes. ECU recalibration is typically required to ensure proper system operation after installation. Professional tuning is recommended.

Is this product legal?

This product is intended for off-road or competition use only. Use on public roads may not comply with local laws and regulations. Please check applicable rules before purchasing.

My car is an F-350 cab chassis, can I use it?

No. This product is only compatible with 2011–2019 F-250/F-350 Super Duty pickup trucks (crew cab, both short and long wheelbase). It is not suitable for cab & chassis commercial vehicles.

2011-2019 6.7L PowerStroke 4" CAT/DPF Delete Racepipe With Muffler For F250/350 Super Duty

Name: 2011-2019 6.7L PowerStroke 4" CAT/DPF Delete Racepipe With Muffler For F250/350 Super Duty
Brand: Vigor Diesel
SKU: 4508EXP446SUS
Price: 273.99 USD
Availability: InStock

SKU: 4508EXP446SUS

Quantity

Brand

Vigor Diesel

Exhaust Type

Diesel Particulate Filter (DPF) And Catalytic Converter (CAT) Delete With Muffler

Pipe Diameter

4 Inch

Fitment

2011-2019 Ford Powerstroke 6.7 Diesel. F-series F-250, F-350 & F-450 SuperDuty pickup truck. Crew cab short bed & crew cab long bed. *This will not fit the Cab & Chassis commercial style truck.

Materials

T-409 stainless steel

Thickness

2mm

Engine

6.7L Powerstroke

Optimized Exhaust Release: Vigor Diesel＊s design improves exhaust evacuation, helping the engine breathe easier and respond more efficiently.
Balanced Sound Control: Integrated muffler delivers increased performance without excessive exhaust noise during long off-road drives.
Reduced Backpressure: Removing restrictive emissions components supports steadier torque output under load.
Heat-Resistant Steel: T409 stainless steel offers superior resistance to thermal stress and corrosion.

6.7L PowerStroke 4" CAT/DPF Delete Racepipe With Muffler

This 6.7 Powerstroke DPF delete racepipe with muffler is designed for owners of the 2011-2019 6.7L Powerstroke F250/350 Super Duty. It aims to improve exhaust flow while minimizing vehicle noise, making it ideal for long-distance off-road driving, towing heavy loads, or any performance-oriented user who wants to reduce interior noise.

Key Features of This DPF Delete Race Pipe with Muffler

1. 4-inch Straight-Through Design

4-inch large-diameter pipe: Thicker than the original pipe, providing ample cross-sectional area to ensure smooth exhaust flow.
Maintaining a straight exhaust path: Keeps the exhaust path straight and smooth, reducing bending resistance.

This design provides consistent exhaust flow, laying the foundation for improved performance.

2. Integrated Muffler

Built-in muffler: Effectively reduces harsh high-frequency noise. This is a key difference from standard DPF delete pipes, achieving a balance between performance and comfort.

3. T-409 Stainless Steel

Made of 2mm thick T-409 stainless steel, far superior to the original aluminized steel, offering high temperature and corrosion resistance. Suitable for high-load diesel environments – withstands continuous high-temperature exhaust, and will not deform or rust over long-term use.

4. Direct-Mount Design

Developed specifically for the 6.7L PowerStroke platform, all pipe angles and lengths are precisely measured. Offers greater installation compatibility – standard original hangers, direct bolt fixation, no cutting or welding required. Key

Original Exhaust vs Vigor Diesel DPF Delete Muffler Solution

Comparison Dimensions	Original Exhaust System	Vigor Diesel 4" Muffler Racepipe
Exhaust Efficiency	Severely restricted by DPF and CAT	4-inch straight-through design for fast exhaust gas expulsion
Backpressure Level	Extremely high backpressure under heavy load	Significantly reduced backpressure for smoother engine breathing
Power Output	Restricted by emissions system	Potential gain of +24 HP / +38 lb-ft with hardware upgrade
Tuning Compatibility	Limited tuning space	Supports up to +150 HP maximum output
Temperature Control	Heat retention, rising EGT	Reduces exhaust temperatures by up to 220°F (122°C)
Sound Performance	Overly quiet with no character	Deep, powerful, and controllable diesel exhaust note
Maintenance Cost	High costs for DPF cleaning/DEF/replacement	Completely eliminates emissions-related maintenance expenses

Long-Term Cost Benefits – Visible Return on Investment

Estimated Savings Based on 300,000 Miles:

Fuel Efficiency Improvement (4-6%): Approximately $21,000 Savings
DPF Cleaning/Replacement Costs: Approximately $6,200 Savings
Total Cost Savings: Approximately $27,200
Net Savings After Excluding Kit + Tuner Costs: Up to $26,000

Estimated based on $5.00/gallon diesel; actual results may vary.

This is not consumption; this is an investment with a very high return on investment.

Peace of Mind Customer Support

Free Shipping within the US
Online Technical Support: Contact us anytime if you encounter any problems during installation
Phone & Email Support: Rapid response through multiple channels
45-Day No-Questions-Asked Returns: Shop with greater confidence

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