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3 Inch Round T304 Stainless Muffler with a 14 Inch Body for Deep Exhaust Tone
The R300-14 is a 3 inch round weld on muffler with a 14 inch body, built from T304 stainless steel for use in performance exhaust fabrication and custom builds. The 14 inch body length of the R300-14 provides more internal muffler volume than shorter body options, which translates to a deeper tone with more pronounced attenuation at the frequencies that make exhaust systems droning and fatiguing at highway speed. This makes this muffler a strong choice for street driven performance builds where sound quality over the long haul matters as much as peak noise level at wide open throttle.
T304 stainless steel construction gives this muffler the durability to outlast the vehicle it is installed on in most cases. The round body profile keeps fabrication straightforward, and the weld on 3 inch connections match the most common tube diameter in high performance V8 exhaust systems. Whether you are fabricating a complete custom cat back system for a Chevrolet Camaro, Ford Mustang, Dodge Challenger, or any other 3 inch performance exhaust platform, this muffler is a quality universal muffler from a manufacturer that builds complete exhaust systems every day.
Key Features
- 3 inch inlet and outlet for 3 inch exhaust system applications
- 14 inch body length for greater internal volume and deeper tone
- Round body profile for straightforward fabrication integration
- T304 stainless steel construction for lasting corrosion resistance
- Weld on installation for a permanent, vibration free connection
- Universal fitment for custom and replacement exhaust builds
What's Included
- 1 x 3 inch round weld on muffler with 14 inch body
Specifications
| Specification | Detail |
|---|---|
| Part Number (MPN) | R300-14 |
| UPC | Contact us for UPC |
| Inlet Diameter | 3 inch |
| Outlet Diameter | 3 inch |
| Body Shape | Round |
| Body Length | 14 inch |
| Material | T304 Stainless Steel |
| Installation Type | Weld On |
| Fitment | Universal |
Frequently Asked Questions
What exhaust diameter does this muffler fit?
This muffler is designed for 3 inch exhaust systems, with a 3 inch inlet and 3 inch outlet for direct weld connection to 3 inch exhaust tubing.
How does a 14 inch body compare to a 10 inch body muffler?
A longer body provides more internal muffler volume. Greater volume generally produces more sound attenuation and a lower, deeper tone character compared to a shorter body muffler on the same system.
Is this muffler louder or quieter than a 10 inch body muffler?
The 14 inch body typically produces a quieter, deeper tone than the 10 inch version because the additional volume attenuates more of the higher frequency exhaust tones that create a raspy or tinny sound.
How is this muffler installed?
This muffler is welded into the exhaust system at both the inlet and outlet connections. Professional welding of the 3 inch connections to adjacent exhaust tubing creates the permanent installation.
What is T304 stainless steel?
T304 is an austenitic stainless steel alloy commonly used in performance exhaust applications for its corrosion resistance, high temperature strength, and ability to be welded cleanly. It provides long service life in the demanding thermal and chemical environment of an exhaust system.
Can I use this muffler in a dual exhaust system?
Yes. For a dual exhaust layout, two mufflers would be used. This muffler is sold as a single unit.
What kind of tone does this muffler produce?
The round body and 14 inch length deliver a full, deep exhaust note that is well suited to V8 applications. Actual tone depends on the entire exhaust system, catalytic converter, and engine combination.
Does this muffler work with clamps?
This muffler is designed for weld on installation. Band clamps can be used at the connections for temporary fitment during fabrication, but welding is the recommended permanent installation method.
How does this muffler compare to the R300-10?
This muffler has the same 3 inch connections as the R300-10 but a 14 inch body versus 10 inches. The longer body provides more volume for deeper tone and slightly more sound attenuation.
Installation Instructions
- Allow the vehicle exhaust system to cool before beginning fabrication.
- Determine the muffler position in the exhaust system, allowing clearance for the 14 inch round body.
- Cut the 3 inch exhaust tubing at the inlet and outlet positions with allowance for weld joints.
- Position the muffler with the inlet toward the engine.
- Verify round body clearance to surrounding undercarriage components and the floor pan.
- Tack weld at multiple points before completing full circumference welds at both connections.
- Use T304 compatible filler material for clean, strong welds.
- Check for exhaust leaks at the weld joints after first startup.
Prop 65 Warning
WARNING: This product can expose you to chemicals including Chromium and Nickel, which are known to the State of California to cause cancer, birth defects or reproductive harm. For more information go to www.P65Warnings.ca.gov.
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