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Magnaflow 24" Diesel Muffler 12774
PART#
12774 | SKU MAG12774
★★★★★
Vehicle Fitment For:
Universal - 5" Inlet/Outlet, 24" Length (Satin Finish)
$270.00
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Description
THE WIDE OPEN PERFORMANCE DIFFERENCE!
MagnaFlow Diesel Performance mufflers are 100% stainless steel and lap-joint welded for solid construction and rugged reliability even in the most extreme conditions. They feature a free-flowing, straight-through perforated stainless steel core, stainless mesh wrap and acoustical fiber fill to deliver that smooth, deep tone. Mufflers are packed tight with this acoustical material unlike some others' products to ensure long life and no sound degradation over time. Backed by a Lifetime Warranty.
Specifications:
Inlet/Outlet Size: 5in./5in.
Body Shape: 7in. Round
Core Size: 4in.
Body Length: 24in.
Material: 409 Stainless Steel - Satin Finish
Body Shape: 7in. Round
Inlet/Outlet Size: 5in./5in.
Body Length: 24in.
Overall Length: 30in.
Core Size: 4in.
Position: Center/Center
MagnaFlow Diesel Performance mufflers are 100% stainless steel and lap-joint welded for solid construction and rugged reliability even in the most extreme conditions. They feature a free-flowing, straight-through perforated stainless steel core, stainless mesh wrap and acoustical fiber fill to deliver that smooth, deep tone. Mufflers are packed tight with this acoustical material unlike some others' products to ensure long life and no sound degradation over time. Backed by a Lifetime Warranty.
Specifications:
Inlet/Outlet Size: 5in./5in.
Body Shape: 7in. Round
Core Size: 4in.
Body Length: 24in.
Material: 409 Stainless Steel - Satin Finish
Body Shape: 7in. Round
Inlet/Outlet Size: 5in./5in.
Body Length: 24in.
Overall Length: 30in.
Core Size: 4in.
Position: Center/Center
Manufacturer Warranty*:
Lifetime
Lifetime
Instructions & Tech Info
Installation Info
Recommended Specialty Tool
Reviews For MagnaFlow 12774
Overall Rating
/5
2 Reviews
Rating Snapshot
2
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0
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Verified Buyer
Quiet
Matt (Jersey) | February 20th, 2026
Bought a new to me truck with a 5” exhaust that was a little loud idling at home while warming up, and had a bad drone on the highway. This muffler cut that nonsense right out. Had to trim an existing hanger for it to fit, but besides that, I’m extremely happy.
Verified Buyer
Exactly what I was looking for
Brad (Pennsylvania) | March 22nd, 2024
Bought my 06 Cummins a month ago, it came with a 5 inch straight pipe axle dump. It was way too loud inside of the cab and would drone through rattling your insides. Saw a YouTube video where the guy had the same problem and installed this muffler. I still have the axle dump and get the perfect amount of throaty drone and turbo whistle that I want. Went from waking up the neighborhood to just the next door neighbors instead. Order number 2222727
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Specifications For MagnaFlow 12774
MPN
12774
SKU
MAG12774
GTIN
841380015471
ID
13616
Manufacturer Name
MagnaFlow
Shipping Weight
22.00 lb.
Shipping Length
32 in.
Shipping Width
8 in.
Shipping Height
8 in.
Fuel Type
Diesel / Gas
Manufacturer Warranty*
Lifetime
Prop 65
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Internal
L0R0
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