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Mel's Manufacturing Twister Muffler - 5"in x 5"Out - 18" - 12" - 51600

Thoroughbred Sku #: MMF51600
Manufacturer Sku #: 51600

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Shipping Restrictions:
This part is NOT available to ship to the state of California.


$97.95

Product Details

Product Name: Mel's Manufacturing Twister Muffler
Manufacturer: Mel's Manufacturing
Manufacturer Part #: 51600
Thoroughbred Diesel Part #: MMF51600
Fitment Notes: 5" in x 5" Out - 18" - 12"

Mel's Manufacturing Twister Muffler 5" in x 5" Out - 18" - 12". Race Muffler That Fits In Tight Places Reduces Noise To Meet Most Track Requirements Works as a Resonator on Noisy Diesel Applications Insignificant Loss Of Horsepower From Open Headers Great Fit For Street-Legal High Performance Vehicles.

The Mel's Manufacturing F5 Series Twister Resonator features a continuous spiral design which is less restrictive than glass-packed designs helping to minimize turbulence which increases horsepower over other spiral designs. The dual flow path cancels noise and creates a vacuum effect accelerating the exhaust through the muffler.

The Twister Muffler 51299 / 51600 by Mel's Manufacturing is a universal muffler add-on for any 4 or 5" exhaust system. The Twister muffler uses a high-flow dual-path system to keep your exhaust quiet enough for the street but doesn't restrict the flow like your OE muffler would.

It's designed to meet most track requirements and works as a resonator on diesel applications. Mel's Manufacturing has tested these vs open headers and has found an insignificant loss of power when adding the twister muffler system!

Features:

  • Low interior resonance
  • High quality at an affordable price
  • Expertly made from premium materials

Notes: To ensure precise fit, please check catalytic converter shape, length and inlet diameter: the latter should match your exhaust pipe diameter
Notes: Installation may involve welding and cutting

  • Welded construction for strength & durability
  • Continuous spiral design minimizes turbulance for greater flow which increases HP over other spiral baffle designs
  • Spiral design is less restrictive than glass packed designs
  • Dual flow path cancels noise and creates a vacuum effect that accelerates the exhaust through the muffler.

Specifications:

  • Style: High Flow "Twister"
  • Sound: Minimal volume reduction; very good at eliminating mid-range drone
  • Material: Aluminized Steel

Reviews

  • How to tell which way it goes? i got mine around a yr ago and it didn’t come with a mark/arrow for direction.

    Rhone Schmidt | 3/11/2026

    Spirals will angle from the front towards the back.

  • Is this stainless or aluminized?

    Steffen Olsen | 3/2/2026

    Aluminized

  • Does this have any effect on power ? 23 L5p 2500

    David leib | 2/25/2026

    Insignificant Loss Of Horsepower

  • Will this work on a 5.0 V8? Just put on an MBRP race exhaust and the drone is insane!!

    W | 9/21/2025

    No, the exhaust system on that engine is not 5".

  • I've got a 2006 Dodge 3500 with 5.9 Cummins. The previous owner removed any muffler and the exhaust is merely pipe. Around town its fine. At highway speeds the sound level in the cab is a bit much. I have HEARD these trucks running without mufflers may not like to have them re-installed. Something to do with the ECU or something. I'm not an expert on that. I think that may be bunk.I sure would like to quiet my truck down a bit. Used for hauling and form some hours at that when it is used.

    Jerome Casey | 9/11/2024

    The twister muffler is a great way to tone down the drone noise in the cab. It will not hurt the performance.

  • I have a straight 5 inch exhaust on my Cummins. My neighbor hates me when warming up my truck. Will this thing slide into my exhaust to reduce the noise

    Roger Mallett | 10/23/2023

    Yes

  • Is there a certain direction that this goes on or does it not matter what way it is pointing ?

    Rhone Schmidt | 4/3/2025

    Yes, product will be marked.

  • How loud are they? I have straight pipe now 4" with an 8" tip. I want to hear myself think! I want to tone it down 25-30 percent at least without restricting it if possible

    Stephen Vest | 3/4/2025

    This item will help with DB’s in the cab , but it will not restrict flow.

  • How loud is this muffler?

    Tim Adamcryk | 11/21/2023

    We do not have a sound bite.