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Exhaust Muffler MBRP Exhaust M1004S

4.437 product ratings
AllenAutomotive&Diesel (237)
96.8% positive feedback
Price:
$249.99
Free 2 day delivery
Get it by Wed, Nov 19
Returns:
30 days returns. Seller pays for return shipping.
Condition:
New
MBRP 4" Stainless Steel Muffler. Free Flowing Muffler - Not Restrictive. For: Cummins / Duramax / Powerstroke Diesel Trucks With 4" Exhaust. T409 Stainless Steel.

About this product

Product Identifiers

BrandMBRP Exhaust
Manufacturer Part NumberM1004S
eBay Product ID (ePID)227864039

Additional Product Features

NotesDescription--Exhaust Muffler
Sub TypeExhaust Muffler
Part TypeMufflers

All listings for this product

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item 9 MBRP Exhaust M1004S Armor Plus Quiet Tone Diesel Muffler
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MBRP 4" Quiet Tone Muffler T409 Stainless 4" Inlet/Outlet 30" Overall; M1004S
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Ratings and Reviews

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4.4
7 product ratings
  • 5 users rated this 5 out of 5 stars
  • 1 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 1 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

  • by packratfxr
    Dec 13, 2021

    Stainless muffler

    I wanted a second muffler on my home generator. I wanted it stainless steel and quiet. This one is well built and really cuts down the sound. Very fast service and it was just as advertised.

    Verified purchase: YesCondition: New

  • by justin3336
    Nov 15, 2019

    Straight pipe

    Went from straight pipe that was too loud and obnoxious to adding this muffler and it put the sound right where i like it. No droning at highway speeds. Quiet enough that i can hear my engine but still loud enough to hear the performance of the truck. can't compare to stock muffler though didn't have it when i swapped

    Verified purchase: YesCondition: New

  • by dpap2128_7wzb53e
    Aug 17, 2023

    Worked well

    It performed well at decreasing the drone from my truck while still sounding good.

    Verified purchase: YesCondition: New

  • by elecdealer
    Oct 23, 2025

    It’s not any quieter than the muffler th...

    It’s not any quieter than the muffler that came with the race profile kit, it just may slightly stifle the burbling sound when letting off the throttle.

    Verified purchase: YesCondition: New

  • by 8016jamesr
    Oct 13, 2025

    Great product and fastest shipper on EBa...

    Great product and fastest shipper on EBay .

    Verified purchase: YesCondition: New

  • by merc04
    Jan 16, 2024

    awesome

    sounds great, no more drone

    Verified purchase: YesCondition: New

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