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Flowmaster 50 Series Big Block Mufflers

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  • List Price:
    $219.99 - $236.81
  • Our Price:
    $169.99 - $182.99
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(14 Reviews)
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    Features

    Description

    Increased power, torque and mileage are vital for today's trucks, SUVs and RVs. That's why Flowmaster makes a 50 Series Big Block Muffler that cranks-out extra force at the pedal for towing. Plus, the efficiency of the Flowmaster 50 series Big Block reduces under-hood temperatures, lengthening the life of critical engine components.

    Don't forget the famous Flowmaster sound you get with the 50 Series Big Block Muffler. It's a milder tone-quieter than the 40 Series-but with plenty of the famous Flowmaster roar. Interior resonance is greatly reduced by the large H-chamber design, which not only makes for a calmer cab but also handles your big engine under heavy loads.

    The 50 Series Big Block Muffler boasts the quality construction you'd expect from Flowmaster. Each Flowmaster Muffler is built with 16-gauge aluminized steel for corrosion resistance and fully mig-welded for maximum durability. Best yet, your Flowmaster 50 Series Big Block Muffler boasts a 3-year warranty.

    Notes

    Flowmaster 50 Series Big Block Mufflers Customer Reviews

    Average Rating

    14 Customer Reviews

    Flowmaster for '05 Silverado

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    Price/Value
    Quality

    Reviewed by Roland R (North Las Vegas, NV) Reviewed for a 2005 Chevy Silverado — Jun 19, 2013 10:09 AM

    Exactly the tone I wanted and not overly loud. Wanted to also reduce back pressure and perhaps improve mileage; have not yet been able to confirm that. The muffler fit well with the included length of pipe and looked strong and durable.

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    Truck muffler

    1 of 2 people found the following review helpful.
    Appearance
    Ease of Installation
    Price/Value
    Quality

    Reviewed by Douglas H (miamisburg, OH) Reviewed for a 2012 GMC Sierra — Apr 11, 2013 9:08 PM

    Just like you described. No complaints.

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    great muffler

    0 of 2 people found the following review helpful.
    Appearance
    Ease of Installation
    Price/Value
    Quality

    Reviewed by Stephen M (Marcellus, NY) Reviewed for a 2011 Chevy Silverado — Jun 21, 2012 6:07 AM

    I picked up more power and mpgs. Great buy and simple install.

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    2011 Chevy 2500 6.0l

    4 of 5 people found the following review helpful.
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    Ease of Installation
    Price/Value
    Quality

    Reviewed by Matthew L (Olathe, KS) Reviewed for a 2011 Chevy Silverado — Jan 12, 2012 5:32 PM

    Piece of cake install, even for a home mechanic. Only had to make 2 cuts to remove factory muffller and slipped new flowmaster rite into place. Sounds sweet.......

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    Great sound

    4 of 4 people found the following review helpful.
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    Ease of Installation
    Price/Value
    Quality

    Reviewed by Jason C (Foley, AL) — Apr 26, 2011 8:45 PM

    Easy to install. Had it installed in less than a hour. Sound is great. Very subtle. NO resonance. If anything it could of been a touch louder but the vehicle is used as a family people mover. Overall very satisfied.

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    Just Awesome

    5 of 5 people found the following review helpful.
    Appearance
    Ease of Installation
    Price/Value
    Quality

    Reviewed by dustin t (Elkins, AR) Reviewed for a 1999 Chevy Silverado — Mar 11, 2011 5:07 AM

    I have the Spectre air intake system, and the Airaid throttle body spacer installed on 1999 Silverado 5.3L. I just thought I was getting the full advantage from them, that was until I installed this Muffler. It really opened things up, faster throttle response, and better high RPM performance. It sounds great, nice deep tone, and not so loud you have to worry about getting pulled over. This is a must have for anybody looking to really get the most out of there Engine. Best of all it took only about 1.5Hrs. to install. Weld right up with no extension pipes, on 1999-2002 Chevy Silverados.

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    Installed on 2003 GMC 2500HD 6.0

    5 of 5 people found the following review helpful.
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    Ease of Installation
    Price/Value
    Quality

    Reviewed by Jonathan V (Saint Paul, MN) Reviewed for a 2003 GMC C/K 2500 — Mar 02, 2011 6:43 AM

    I installed this muffler on my truck. The only other engine mods I have on is a Spectre CAI. I highly advise getting it welded, as the clamps just couldn't secure the muffler properly. The shop charged me $150 to weld it- a ripoff, but it's worth it. Flowmaster says that the GM 6.0 is the hardest motor to quiet down, so I advise getting this muffler. According to Flowmaster, this is the biggest, quietest muffler they produce. The sound is great. Very powerful, not too loud, either. There is a noticeable drone at around 2000 rpm, but I got used to it fast. It sounds great on the inside, and even better on the outside. I did certainly feel a power boost all across the rpm band, but no improvement in mpg's. And as usual, AutoAnything was terrific.

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    50 Series Flowmaster Dual In & Single Out

    2 of 2 people found the following review helpful.
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    Ease of Installation
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    Quality

    Reviewed by Dale J F (Cheyenne, WY) Reviewed for a 2005 Cadillac Escalade — Dec 25, 2010 6:47 AM

    Sound was Great and 1 MPG increase in mileage. Muffler attachment did match exhaust pipe. A little fabrication required but well worth it. Very Happy with purchase!

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    Titan Power & Sound

    7 of 7 people found the following review helpful.
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    Price/Value
    Quality

    Reviewed by Lawrence B (Weaverville, CA) Reviewed for a 2005 Nissan Titan — Dec 15, 2009 9:31 PM

    This muffler is exactly what I expected and exactly as advertised. It has a very mellow sound and yet the inside cab of the truck is much quieter than the Volant series I had on before. I used the 3 inch in and 3 inch out to a single tail pipe to maintain departure angle for off-roading. Recommend this product and this retailer. Quick delivery.

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    2008 Tundra Giddy-Up

    20 of 22 people found the following review helpful.

    Reviewed by Royston J (Fort Worth, TX) Reviewed for a 2008 Toyota Tundra — Feb 12, 2008 8:10 PM

    Perfect rumble, not irritating. I think this would be the answer for anyone wanting to keep the sound close to stock until you get on it then the gates of hell open up :-0

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