1. Mufflers
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  3. 4 Inch Inlet Diameter
  4. 14 Inch Body Length
  5. 4 Inch Outlet Diameter
  6. 6 Round x 20 Long Inch
MagnaFlow Stainless Steel, Straight-Through Universal Muffler - Race Series - Polished Finish

MagnaFlow Stainless Steel, Straight-Through Universal Muffler - Race Series - Polished Finish

Item # MF14163
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Shipping Weight: 11 lbs
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MF14163 - 4 Inch Outlet Diameter MagnaFlow 4 Inch Inlet Diameter
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Featuring a single, perforated core larger than standard, straight-through mufflers, this muffler boosts engine performance on racing vehicles. An external sound dampener reduces exhaust noise to accommodate decibel-level regulations at racetracks. Fastest Shipping and Guaranteed Lowest Prices for MagnaFlow Stainless Steel, Straight-Through Universal Muffler - Race Series - Polished Finish. Read our customer reviews of MagnaFlow mufflers. Call 800-298-8924 for expert service or order your mufflers part number MF14163 by MagnaFlow online at etrailer.com.
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MagnaFlow Mufflers - MF14163

  • 4 Inch Inlet Diameter
  • MagnaFlow
  • 14 Inch Body Length
  • 4 Inch Outlet Diameter
  • 6 Round x 20 Long Inch
  • Gas Engine
  • Round
  • Polished Finish

Featuring a single, perforated core larger than standard, straight-through mufflers, this muffler boosts engine performance on racing vehicles. An external sound dampener reduces exhaust noise to accommodate decibel-level regulations at racetracks.


Features:

  • Recommended for high-performance, customized race cars
  • Unrestricted exhaust flow increases horsepower, torque and fuel efficiency, improving engine performance
    • Stainless steel, perforated core runs straight through from inlet to outlet
      • Core is larger than those of MagnaFlow's standard, straight-through mufflers, allowing more exhaust to pass through
    • Linear design excludes baffles, chambers and louvers that impede airflow
  • Regulated exhaust noise permits use in racing venues
    • External sound dampener included to curb decibel level
    • Stainless steel mesh and acoustic fiber insulate the core to absorb exhaust noise, shield high exhaust temperatures and prevent blowouts
    • Acoustic materials deliver a smooth, deep tone that is louder than MagnaFlow's standard and Street Series straight-through mufflers
  • Lap-joint welding provides durable construction - also prevents distortion and cracking
  • 100% Stainless steel composition resists corrosion
    • Polished finish gives the muffler a mirror-like finish
  • Reversible muffler functions in both directions; can be flipped around for custom installation
  • Welding required for installation
  • Made in USA


Specs:

  • Muffler shape: round
  • Overall dimensions: 6" round x 20" long
    • Body length: 14"
  • Inlet/outlet diameter: 4"
  • Inlet/outlet position: center/center
  • Core diameter: 4"
  • Lifetime warranty


Internal muffler diagram of straight-through, perforated core, mesh and acoustic fiber

A. Designed for high-performance, customized race cars, this muffler's stainless steel, perforated core runs straight through from the inlet to the outlet, allowing the exhaust to pass through without restriction. The core is larger than those of MagnaFlow's standard, straight-through mufflers, so it allows even more exhaust to pass through. It contains no baffles, chambers or louvers that would restrict airflow. When air flows unimpeded through the exhaust system, horsepower, torque and fuel efficiency increase. All these factors lead to improved engine performance.

B. and C. Many racing venues now maintain decibel-level restrictions. To meet these standards, this muffler has an external sound dampener that regulates exhaust noise. Additionally, stainless steel mesh (B) and acoustic fiber (C) insulate the core. These materials absorb sound waves, shield high temperatures and prevent hazardous blowouts. The resulting tone is a smooth, deep growl, specific to MagnaFlow.

D. The inlets and outlets are lap-joint welded to the muffler body for durable construction that eliminates distortion and cracking.

E. All materials are made from 100-percent stainless steel with a polished finish, making this muffler corrosion resistant and giving it a mirror-like finish.



14163 MagnaFlow Polished Stainless Steel Universal Muffler - Race Series, Round Shape





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Ask the Experts about this MagnaFlow Mufflers

  • Muffler Compatible with 540 CI BBC Motor with Blower and 4 Inch Exhaust
    That is an impressive engine. The MagnaFlow Stainless Steel, Straight-Through Universal Muffler - Satin Finish # MF12594 is the best we can offer for your 4 inch pipe. This has 3 inch diameter outlets with the internal core being a Y-pipe. It is 28 inches long, 5 inches tall and 11 inches wide. The body length is 22 inches. If you want a 4 inch to 4 inch your best option is the MagnaFlow Stainless Steel, Straight-Through Universal Muffler - Race Series - Polished Finish # MF14163....
    view full answer...
  • Best Magnaflow Muffler for 1978 Ford F-150 with True Dual Exhaust
    If you have the 3 inch pipes, the MagnaFlow Stainless Steel, Straight-Through Universal Muffler # MF12867 will be a great option for the rumble and performance that won't be too loud for a conversation. Without knowing your pipe diameter, here are some other options: # MF14161 for 3-1/2 inch pipes # MF14163 for 4 inch pipes These muffler options require welding for installation but they are designed to curb the decibel level while giving you a smooth deep tone that is still louder...
    view full answer...




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Info for this part was:

Written by:
Lindsey S
Edited By:
Leah B

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