SKU: 49036131203

Muffler Flow FX 3.5" Center In/3.5" Center Out SS Moderate Flowmaster

$143.95 $159.95
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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Description

Muffler Flow FX 3.5" Center In/3.5" Center Out SS Moderate FlowmasterOverview: Flowmaster's Flow FX series mufflers deliver a moderate performance tone for the enthusiast looking for an exhaust note that is different from the "chambered" muffler sound. The interior features a large 3. 50 inch "straight through" stainless steel perforated core, surrounded with high temperature sound absorption materials delivering a deep traditional mellow tone. The internal flow design is reversible, so the muffler can be installed in

Overview:

Flowmaster's Flow FX series mufflers deliver a moderate performance tone for the enthusiast looking for an exhaust note that is different from the "chambered" muffler sound. The interior features a large 3.50-inch "straight-through" stainless steel perforated core, surrounded with high-temperature sound absorption materials delivering a deep traditional mellow tone. The internal flow design is reversible, so the muffler can be installed in either direction to best suit the vehicle application and offsets needed. Features include fully MIG-welded "bright" 409 stainless steel construction with the Flow FX logo embossed on both sides of the case. The Flow FX line of mufflers are perfect for the person looking for a show quality performance muffler at an economical price point and in a compact sized case.

Features:

  • Fits most 1964-1972 GM A-Bodies with V8 engines and aftermarket long tube headers.
  • Includes Hangers and Hardware for Easy Installation
  • Mandrel-bent 16-Gauge Aluminized Steel Tubing
  • Two Exit Style Choices: Slash Cut or Turndown
  • Moderate to Aggressive Exterior Exhaust Tone
  • Built-in Balance Pipe Equalizes Pressures
  • Super 40 Series Performance Mufflers
  • Flowmaster Quality & Reliability
  • Crossmember-Back System

    • Specs:

  • Body Height: 5
  • Body Length: 18
  • Body Material: 409 Stainless Steel
  • Body Width: 8
  • Brand: Flowmaster
  • Clamping Type: Flat Band
  • 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: 3.5
  • Inlet Inside Diameter: 3.5
  • Inlet Location: Center
  • Inlet Outside Diameter: 3.63
  • Inlet Quantity: 1
  • Inlet Type: Weld-On
  • Muffler Series: Flow FX
  • Muffler Type: Absorption
  • Outlet Connection: Slip-Fit
  • Outlet Inside Diameter: 3.5
  • Outlet Location: Center
  • Outlet Outside Diameter: 3.63
  • Outlet Quantity: 1
  • Overall Length: 24
  • Reversible: Yes
  • Shape: Oval
  • Sound Level: Moderate
  • Tunable: No
  • Universal Or Specific Fit: Universal
  • Part Number: 74151

    • 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: 49036131203

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    4.0 ★★★★★
    Based on 1836 reviews
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    C
    Verified Purchase
    CGB
    Massapequa, US
    ★★★★★ 4
    You have to reposition to stay cool
    Size: Queen
    It's okay...it isn't much better than other cooling pillows I have had. If I had known you can't wash this pillow, only the outside cover, I would not have paid so much. The cover is cool to touch but the heat from your head will penetrate the pillow and I am constantly having to turn it over. So it is ok but way overpriced.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on August 14, 2025
    F
    Verified Purchase
    Francoara B Bauer
    Dallas, US
    ★★★★★ 5
    I like my Sujo FlexCool pillow
    Size: Queen
    It cools nicely and it is possible to add or remove fill to optimize preferred comfort. Quality made and very comfortable for me after I added some of the fill provided with the pillow.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 5, 2025
    S
    Secret Garden
    Whiting, US
    ★★★★★ 3
    This was not for me
    Size: King
    Hmm… I didn’t hate this pillow but I was not blown away either. I’ve been using Sleep Number pillow, and since the price range was similar, I thought this might be a great alternative, especially when it’s hot. Even though I was able to adjust the filling, I couldn’t find the right shape/density. And I found that this pillow felt hotter when I was sleeping. After trying it for a few weeks, I went back to my Sleep Number pillow. The quality was fine. But I guess everyone is different, just like some people prefer a softer mattress and others don't.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on October 13, 2024
    D
    Verified Purchase
    D. Spurrier
    Cuba, US
    ★★★★★ 5
    Best pillow ever.
    Size: King
    How much did I like this pillow? My wife and I both loved it so much that we purchased another one. I think that says it all! The pillow arrives in a large box (king size pillow). It does NOT arrive all flattened and squished in a vacuum bag like some others do. I did place it on my back porch to air out for a while, just because that's what I do with any new bedding. I did not have any issue with scent or odors from either of my pillows. Its clearly well constructed with high quality materials. It comes with a smaller bag of extra stuffing if you want a slightly firmer pillow. We have not used any of the extra stuffing... we think the pillows are perfect as is! When I ordered the first pillow, I thought the price was a bit on the high side. After using it, I had no hesitation purchasing a second. This pillow is well worth the price. If anything, I feel this pillow is a great value at its price. Its not too hard, not too soft. Its the goldilocks pillow! I give this pillow my highest possible recommendation. Its simply a great pillow.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 5, 2024
    M
    Verified Purchase
    moshe
    Birmingham, US
    ★★★★★ 5
    Super comfy
    Color: Soft, Size: Queen(28"×16"×5.9")
    Absolutely love this pillow! It’s incredibly soft, supportive, and stays cool throughout the night. I’ve been sleeping much better since getting it. Great quality, perfect firmness, and definitely worth every penny.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 19, 2026

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