Muffler Flow FX 2.5"" In/Out SS Moderate Performance Flowmaster
SKU: 346462074

Muffler Flow FX 2.5"" In/Out SS Moderate Performance Flowmaster

Sale price$76.45 Regular price$84.95
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Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

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Description

Muffler Flow FX 2.5"" In/Out SS Moderate Performance FlowmasterOverview: Flowmaster's Flow FX series mufflers are for the enthusiast who is looking for an economically priced performance muffler that delivers a moderate sound level and tone, both inside and outside the vehicle. The large straight through smooth core offers up a different sound than that typical "chambered" sound that Flowmaster has become famous for. These new Flow FX mufflers have a compact 4. 00 inch diameter round body that will fit nicely on

Overview:

Flowmaster's Flow FX series mufflers are for the enthusiast who is looking for an economically priced performance muffler that delivers a moderate sound level and tone, both inside and outside the vehicle. The large straight-through smooth core offers up a different sound than that typical "chambered" sound that Flowmaster has become famous for. These new Flow FX mufflers have a compact 4.00 inch diameter round body that will fit nicely on just about any application and feature a fully welded 409S stainless steel case for increased durability.

Features:

  • Durable fully welded 409S stainless steel case
  • Flowmaster quality
  • Straight through design
  • Moderate exterior performance tone
  • Specs:

  • Body Diameter: 4
  • Body Height: 4
  • Body Length: 14
  • Body Material: 409 Stainless Steel
  • Body Width: 4
  • Brand: Flowmaster
  • Clamps Included: No
  • Color: Silver
  • Emission Code: 5
  • Exhaust Tip Quantity: 0
  • Finish: Natural
  • Fitment: Universal
  • Grade Type: Performance
  • Hanger Included: No
  • Heat Shield Attached: No
  • Inlet Connection: Slip-Fit
  • Inlet Diameter: 2.5
  • Inlet Inside Diameter: 2.5
  • Inlet Location: Center
  • Inlet Outside Diameter: 2.63
  • Inlet Quantity: 1
  • Inlet Type: Weld-On
  • Muffler Series: Flow FX
  • Muffler Type: Absorption
  • Outlet Connection: Slip-Fit
  • Outlet Inside Diameter: 2.5
  • Outlet Location: Center
  • Outlet Outside Diameter: 2.63
  • Outlet Quantity: 1
  • Outlet Type: Single
  • Overall Length: 20
  • Reversible: Yes
  • Shape: Round
  • Sound Level: Moderate
  • Tunable: No
  • Universal Or Specific Fit: Universal
  • Part Number: 71416
  • Emissions:

    • This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 346462074

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    4.6 ★★★★★
    Based on 1921 reviews
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    Verified Purchase
    The Sauce
    Carnegie, US
    ★★★★★ 3
    Ight
    Size: 2-pack
    Just get the Permatex for a better "spray on", both cans I bought required way too much effort in shaking between spraying. I did shake the can well before use.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on September 6, 2025
    J
    Verified Purchase
    Joshua Roland
    Boise, US
    ★★★★★ 5
    Best choice! Absolutely necessary for anything above basic stock bass.
    Bonded to services well, completely removed panel reverberation in my tacoma. Also really made the doors so much quieter even when closing. Very happy with the result. Used only one set on my 01 tacoma 4 door. Installed inside doors on exterior skin panel, over interior door panel access holes (sealing the door to provide backpressure to door speakers (left drains open)), roof panel, and back wall of cab. Achieved about 70% coverage and am very happy. 2 8in SKAR SVR8 at 1oh on walmart power acustic 2500 (only rated to ~800rms at 2oh, forum showed testing at 1oh worked about 1kw) in 6th order with blow through into cab. With cab gain, im over 130db between ~30 and ~50hz. This was a necessary addition!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 13, 2026
    R
    Verified Purchase
    Rob Chapman
    Massapequa, US
    ★★★★★ 5
    Nice and sticky
    Works as it should. No complaints.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 8, 2026
    N
    Verified Purchase
    Nick Wilson
    Omaha, US
    ★★★★★ 5
    Mak sure area is clean before you install
    This works amazing, easy to use, great quality. Sticks down great, I will be ordering more for sure.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 29, 2026
    S
    Sam
    Grantham, US
    ★★★★★ 3
    Looks good so far, will update once installed
    Have not installed this yet, so this is only a first impression review. I bought it to use in the wheel well area on my truck, so I’ll update later once I actually get it on and see if it makes a real difference. So far it looks good out of the box and seems straightforward enough. One thing I’d recommend is making sure you have a sound deadening roller for install, because I would not try putting this on without one. Too early for me to say how well it works for road noise since it is not installed yet, but I wanted to post my initial thoughts for now and will update later.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 2, 2026

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