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  3. FORD 6089347

FORD 6089347 Flow Master Exhaust Muffler SN95 4TH

fits model: Gt, Mk4, Mustang. make: Ford. year: 1999–2004.

6089347 Ford Mustang Gt Flow Master Exhaust Muffler Sn95 4th Gen Mk4 99-04

( Part Type: Flow Exhaust Muffler ), ( Country Of Manufacture: Us ), ( Manufacturer Part Number: 6089347 ), ( Manufacturer Warranty: No Warranty ), ( Year Range: 1999 2000 2001 2002 2003 2004 99 00 01 02 03 04 )

Review FORD Flow Master Exhaust Muffler 4th Gen fits MUSTANG GT MK4 1999–2004

The Ford 6089347 Flow Master Exhaust Muffler is a high-performance replacement part designed specifically for the Ford Mustang GT models from the 4th generation (SN95) produced between 1999 and 2004. This muffler is an essential component of the exhaust system, responsible for reducing exhaust noise while maintaining optimal engine performance.

This Flow Master exhaust muffler is engineered with a unique design that sets it apart from other aftermarket alternatives. Its mandrel-bent tubing ensures a perfect fit and minimal exhaust restriction for improved engine breathing. In turn, this leads to enhanced power output and a more responsive driving experience.

The muffler's core component is a 409 stainless steel construction, which is both durable and corrosion-resistant. This material guarantees long-lasting performance even in the harshest driving conditions. Moreover, the design features a double-wall construction, which not only reduces exhaust noise but also adds an extra layer of insulation.

The Ford 6089347 Flow Master Exhaust Muffler is CARB-legal, ensuring compliance with emission regulations in California and other states with similar regulations. This muffler is also a direct replacement for the original equipment, making installation straightforward and hassle-free.

In summary, the Ford 6089347 Flow Master Exhaust Muffler is an excellent upgrade for mustang GT owners looking to enhance their vehicle's performance and exhaust note. Its mandrel-bent tubing, 409 stainless steel construction, and double-wall design deliver improved power output, durability, and noise reduction, making it a worthwhile investment for any enthusiast.

Pros and Cons of buying a Ford 6089347 Mustang GT Flowmaster Exhaust Muffler for SN95 4th Gen Mk4 (99-04)

Introduction:

The Ford 6089347 Mustang GT Flowmaster Exhaust Muffler is a popular aftermarket exhaust component designed for SN95 4th Gen Mk4 Mustangs produced between 1999 and 2004. This muffler is known for enhancing the vehicle's performance and sound. In this analysis, we will discuss the primary advantages and disadvantages of purchasing this exhaust muffler to help you make an informed decision.

Pros:

1. Improved Performance: The Flowmaster exhaust muffler is designed to reduce back pressure, allowing for better engine efficiency and increased power output.

2. Enhanced Sound: This muffler is famous for its distinctive exhaust note, which is louder and more aggressive than the stock exhaust. Many Mustang enthusiasts prefer this sound, as it adds to the performance car's character.

3. Durability: Flowmaster exhaust components are known for their high-quality materials and robust construction, ensuring that the muffler lasts longer than the stock component.

4. Easy Installation: The exhaust muffler is relatively easy to install, as it is a direct replacement for the stock component, requiring minimal modifications to the exhaust system.

Cons:

1. Increased Noise: The primary disadvantage of this exhaust muffler is the increased noise level, which can be a concern for some drivers, especially those who prefer a quieter ride.

2. Cost: Upgrading to a high-performance exhaust system like the Flowmaster muffler can be costly, with prices ranging from $500 to $1,000, depending on the retailer and shipping costs.

3. Maintenance: Exhaust systems, in general, require regular maintenance, and the Flowmaster muffler is no exception. It may require occasional cleaning or repair to ensure optimal performance.

Conclusion:

In conclusion, the Ford 6089347 Mustang GT Flowmaster Exhaust Muffler offers several advantages, including improved performance, enhanced sound, durability, and easy installation. However, it also comes with some disadvantages, such as increased noise and cost. Ultimately, the decision to purchase this exhaust muffler depends on your personal preferences and priorities as a Mustang owner. If you value increased power, aggressive sound, and a customized driving experience, the Flowmaster exhaust muffler is worth considering. However, if you prefer a quieter ride or are budget-conscious, this upgrade may not be for you.

Recommendation:

My recommendation would be to carefully evaluate your priorities and preferences before making a decision. Consider attending a local car show or speaking with fellow Mustang enthusiasts to hear their experiences with the Flowmaster exhaust muffler. Additionally, research various retailers to find the best price and shipping options. If you decide that the benefits outweigh the drawbacks, the Ford 6089347 Mustang GT Flowmaster Exhaust Muffler can significantly enhance your driving experience.

part # 6089347 prices

  • $101.88-$123.49

specifications mufflermooch:

  • for models: Gt, Mk4, Mustang
  • for makes: Ford
  • for years: 1999-2004
  • part type: Flow Exhaust Muffler
  • country of manufacture: Us
  • manufacturer part number: 6089347
  • manufacturer warranty: No Warranty
  • year range: 1999 2000 2001 2002 2003 2004 99 00 01 02 03 04

general mufflermooch:

  • Car Truck Parts Accessories > Exhaust Emission Systems > Mufflers Resonators
  • condition: Used

returns mufflermooch:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Buyer

seller mufflermooch:

  • # reviews: 3250
  • rating: 97.1%

offer mufflermooch:

  • quantity: 1
  • sold: 0
  • availability: In Stock
  • started: January 17, 2026
  • options: Ship-to-home

shipping mufflermooch:

  • type: Fixed
  • cost: $40.00
  • service: Standard
  • transit: 7-13 Days
  • class: Standard

payments mufflermooch:

  • other
  • wallet: Google-pay
  • credit card: Visa
for models: gt, mk4, mustang, for makes: ford, for years: 1999-2004, part type: flow exhaust muffler, country of manufacture: us, manufacturer warranty: no warranty, year range: 1999 2000 2001 2002 2003 2004 99 00 01 02 03 04,
category: auto parts > car truck parts accessories > exhaust emission systems > mufflers resonators, sku: 11505314132845762,

Ford 6089347 Is Similar To:

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5 offers $101.88–$123.49 USD
  • Offer #1: $123.49 price + $75.00 delivery = $198.49* total. Confirm fitment with your dealer or mechanic. Ford Mustang GT Flow Master Exhaust Muffler 99-04 This is a used item with normal wear.+$75.00 shipping
  • Offer #2: $101.88 price + $40.00 delivery = $141.88* total. Also fits: THUNDERBIRD 02 Neiman Marcus & base model; Assembly. Model: FORD THUNDERBIRD.+$40.00 shipping
  • Offer #3: $101.88 price + $40.00 delivery = $141.88* total.+$40.00 shipping
  • Offer #4: $56.99 price + free delivery = $56.99* total. The distance between the tail pipe and the bumper should be above 2cm to avoid scalding by hot exhaust bumper. This Muffler Tip Can Not Only Reduce Exhaust Noise, Also Can Release The Exhaust Gas Safely and Effectively.FREE SHIPPING
  • Offer #5: $118.74 price + $40.00 delivery = $158.74* total. Ford Mustang GT Flow Master Exhaust Muffler 4th Gen MK4 99-04 This is a used item with normal wear.+$40.00 shipping