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Flowmaster 50 Series Big Block Chambered Muffler 527504

Flowmaster 50 Series Big Block Chambered Muffler 527504
Flowmaster 50 Series Big Block Chambered Muffler 527504Flowmaster 50 Series Big Block Chambered Muffler 527504
$450.99 ea
NEWARRIVING SOONEstimated Ship Date 08/27/2025 (If Ordered Today)66 Available from HOLLEY PERFORMANCE PRODUCTS as of 08/08/2025
Model: 4005069
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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The 50 Series Big Block muffler is made for more than just big cubic inch engine applications. Its large case size with internal tuning chamber provides mileage and power gains along with maximum sound control for a quiet interior tone, even under heavy loads. Well suited to heavy duty vehicles such as full size trucks, SUV's, RVs, and tow vehicles. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Features:
  • Improved Horsepower, Torque and Engine Efficiency
  • Recommended for SUV/trucks/motorhomes/tow vehicles
  • Minimal interior resonance
  • Mild to stock exterior exhaust tone
Universal Muffler - Some adaptation may be required.
Installation Notes:
Universal Muffler - Some adaptation may be required.
About Flowmaster

Manufacturer of performance exhaust systems, mufflers, performance air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.

Downloads:

Download Name File Size
fm_warranty_general.pdf88.58KB
527504.pdf71.77KB

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Engine
Chevrolet C2500 Base 1996 7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet C2500 Base 1997 7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet C2500 Base 1999 7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet C2500 Cheyenne 1996 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C2500 Cheyenne 1997 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C2500 Cheyenne 1998 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C2500 LS 1999 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C2500 Silverado 1996 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C2500 Silverado 1997 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C2500 Silverado 1998 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C2500 WT 1998 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C3500 Base 1996 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C3500 Base 1997 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C3500 Base 1999 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C3500 Cheyenne 1996 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C3500 Cheyenne 1997 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C3500 Cheyenne 1998 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C3500 LS 1999 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C3500 Silverado 1996 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C3500 Silverado 1997 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet C3500 Silverado 1998 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet K2500 Base 1996 7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet K2500 Base 1997 7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet K2500 Base 1999 7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet K2500 Cheyenne 1996 7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet K2500 Cheyenne 1997 7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet K2500 Cheyenne 1998 7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet K2500 LS 1999 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet K2500 Silverado 1996 7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet K2500 Silverado 1997 7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet K2500 Silverado 1998 7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet K2500 WT 1998 7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet K3500 Base 1996 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet K3500 Base 1997 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet K3500 Base 1999 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet K3500 Cheyenne 1996 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet K3500 Cheyenne 1997 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet K3500 Cheyenne 1998 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet K3500 LS 1999 5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet K3500 Silverado 1996 7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet K3500 Silverado 1997 7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet K3500 Silverado 1998 7.4L / 454 / V8
5.7L / 350 / V8
GMC C2500 Suburban Base 1996 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Suburban Base 1997 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Suburban Base 1998 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Suburban Base 1999 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Suburban SLE 1996 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Suburban SLE 1997 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Suburban SLE 1998 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Suburban SLE 1999 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Suburban SLT 1996 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Suburban SLT 1997 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Suburban SLT 1998 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Suburban SLT 1999 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Sierra SLE 1996 7.4L / 454 / V8
5.7L / 350 / V8
GMC C2500 Sierra SLE 1997 7.4L / 454 / V8
5.7L / 350 / V8
GMC C2500 Sierra SLE 1998 7.4L / 454 / V8
5.7L / 350 / V8
GMC C2500 Sierra SLE 1999 7.4L / 454 / V8
5.7L / 350 / V8
GMC C2500 Sierra SLT 1996 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Sierra SLT 1997 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Sierra SLT 1998 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Sierra SLT 1999 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Sierra SL 1996 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Sierra SL 1997 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Sierra SL 1998 5.7L / 350 / V8
7.4L / 454 / V8
GMC C2500 Sierra SL 1999 5.7L / 350 / V8
7.4L / 454 / V8
GMC C3500 Sierra SLE 1996 7.4L / 454 / V8
5.7L / 350 / V8
GMC C3500 Sierra SLE 1997 7.4L / 454 / V8
5.7L / 350 / V8
GMC C3500 Sierra SLE 1998 7.4L / 454 / V8
5.7L / 350 / V8
GMC C3500 Sierra SLE 1999 7.4L / 454 / V8
5.7L / 350 / V8
GMC C3500 Sierra SLT 1996 5.7L / 350 / V8
7.4L / 454 / V8
GMC C3500 Sierra SLT 1997 5.7L / 350 / V8
7.4L / 454 / V8
GMC C3500 Sierra SLT 1998 5.7L / 350 / V8
7.4L / 454 / V8
GMC C3500 Sierra SLT 1999 5.7L / 350 / V8
7.4L / 454 / V8
GMC C3500 Sierra SL 1996 7.4L / 454 / V8
5.7L / 350 / V8
GMC C3500 Sierra SL 1997 7.4L / 454 / V8
5.7L / 350 / V8
GMC C3500 Sierra SL 1998 7.4L / 454 / V8
5.7L / 350 / V8
GMC C3500 Sierra SL 1999 7.4L / 454 / V8
5.7L / 350 / V8
GMC K2500 Sierra SLE 1996 5.7L / 350 / V8
7.4L / 454 / V8
GMC K2500 Sierra SLE 1997 5.7L / 350 / V8
7.4L / 454 / V8
GMC K2500 Sierra SLE 1998 5.7L / 350 / V8
7.4L / 454 / V8
GMC K2500 Sierra SLE 1999 5.7L / 350 / V8
7.4L / 454 / V8
GMC K2500 Sierra SLT 1996 5.7L / 350 / V8
7.4L / 454 / V8
GMC K2500 Sierra SLT 1997 5.7L / 350 / V8
7.4L / 454 / V8
GMC K2500 Sierra SLT 1998 5.7L / 350 / V8
7.4L / 454 / V8
GMC K2500 Sierra SLT 1999 5.7L / 350 / V8
7.4L / 454 / V8
GMC K2500 Sierra SL 1996 5.7L / 350 / V8
7.4L / 454 / V8
GMC K2500 Sierra SL 1997 5.7L / 350 / V8
7.4L / 454 / V8
GMC K2500 Sierra SL 1998 5.7L / 350 / V8
7.4L / 454 / V8
GMC K2500 Sierra SL 1999 5.7L / 350 / V8
7.4L / 454 / V8
GMC K3500 Sierra SLE 1996 5.7L / 350 / V8
7.4L / 454 / V8
GMC K3500 Sierra SLE 1997 5.7L / 350 / V8
7.4L / 454 / V8
GMC K3500 Sierra SLE 1998 5.7L / 350 / V8
7.4L / 454 / V8
GMC K3500 Sierra SLE 1999 5.7L / 350 / V8
7.4L / 454 / V8
GMC K3500 Sierra SLT 1996 7.4L / 454 / V8
5.7L / 350 / V8
GMC K3500 Sierra SLT 1997 7.4L / 454 / V8
5.7L / 350 / V8
GMC K3500 Sierra SLT 1998 7.4L / 454 / V8
5.7L / 350 / V8
GMC K3500 Sierra SLT 1999 7.4L / 454 / V8
5.7L / 350 / V8
GMC K3500 Sierra SL 1996 7.4L / 454 / V8
5.7L / 350 / V8
GMC K3500 Sierra SL 1997 7.4L / 454 / V8
5.7L / 350 / V8
GMC K3500 Sierra SL 1998 7.4L / 454 / V8
5.7L / 350 / V8
GMC K3500 Sierra SL 1999 7.4L / 454 / V8
5.7L / 350 / V8
Hummer H2 Base 2003 6.0L / 364 / V8
Hummer H2 Base 2004 6.0L / 364 / V8
Hummer H2 Base 2005 6.0L / 364 / V8
Hummer H2 Base 2006 6.0L / 364 / V8

Specifications:

Automotive Item Grade High Performance
Body Height (in) 5
Body Length (in) 22
Body Width (in) 12
California Proposition 65 Required No
Color Black
Emission Code 5
Finish Paint
Fitment Universal
Inlet Connection Type Pipe Connection
Inlet Diameter (in) 2.75
Inlet Position Dual
Material Aluminized Steel
Mount Type Uses New Hangers (Not Included)
Muffler Series 50 Series Big Block
Muffler Type Chambered
Outlet Connection Type Pipe Connection
Outlet Diameter (in) 2.5
Outlet Position Dual
Overall Length (in) 28, 28
Part Type Exhaust Muffler
Product Type Street Mufflers
Reversible No
Shape Oval
Sound Level Mild Sound
Type of Muffler Chambered
Vehicle Type Truck/SUV
Warranty Time 36 Months

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