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Flowmaster 50 Series Delta Flow Chambered Muffler 9425502

Flowmaster 50 Series Delta Flow Chambered Muffler 9425502
Flowmaster 50 Series Delta Flow Chambered Muffler 9425502Flowmaster 50 Series Delta Flow Chambered Muffler 9425502
$254.99 ea
NEWARRIVING SOONEstimated Ship Date 07/08/2025 (If Ordered Today)30 Available from HOLLEY PERFORMANCE PRODUCTS as of 06/17/2025
Model: 4005597
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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The three chamber design utilizes Flowmaster's Delta Flow® technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Features:
  • Improved Horsepower, Torque and Engine Efficiency
  • Excellent choice for Street Rod cars and trucks
  • Mild interior resonance
  • Moderate Sound
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

Videos:

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 Blazer Custom Deluxe 1987 5.0L / 305 / V8
Chevrolet Blazer Silverado 1987 5.0L / 305 / V8
Chevrolet C10 Custom 1981 5.0L / 305 / V8
Chevrolet C10 Custom 1982 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C10 Custom 1983 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C10 Custom 1984 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C10 Custom 1985 5.0L / 305 / V8
5.7L / 350 / V8
4.3L / 262 / V6
Chevrolet C10 Custom 1986 5.0L / 305 / V8
5.7L / 350 / V8
4.3L / 262 / V6
Chevrolet C10 Deluxe 1981 5.0L / 305 / V8
Chevrolet C10 Scottsdale 1982 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C10 Scottsdale 1984 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C10 Scottsdale 1985 5.7L / 350 / V8
4.3L / 262 / V6
5.0L / 305 / V8
Chevrolet C10 Scottsdale 1986 5.7L / 350 / V8
4.3L / 262 / V6
5.0L / 305 / V8
Chevrolet C10 Silverado 1982 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C10 Silverado 1983 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C10 Silverado 1984 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C10 Silverado 1985 4.3L / 262 / V6
5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C10 Silverado 1986 4.3L / 262 / V6
5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C1500 Cheyenne 1988 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C1500 Cheyenne 1989 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C1500 Cheyenne 1990 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C1500 Cheyenne 1991 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C1500 Cheyenne 1992 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C1500 Scottsdale 1988 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C1500 Scottsdale 1989 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C1500 Scottsdale 1990 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C1500 Silverado 1988 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C1500 Silverado 1989 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C1500 Silverado 1990 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C1500 Silverado 1991 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C1500 Silverado 1992 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C1500 WT 1990 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C1500 WT 1991 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C1500 WT 1992 5.7L / 350 / V8
Chevrolet C20 Cheyenne 1980 6.6L / 400 / V8
5.7L / 350 / V8
Chevrolet C20 Custom Deluxe 1980 5.7L / 350 / V8
6.6L / 400 / V8
Chevrolet C20 Custom 1981 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C20 Custom 1982 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C20 Custom 1983 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C20 Custom 1984 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C20 Custom 1985 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C20 Custom 1986 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C20 Deluxe 1981 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C20 Scottsdale 1980 6.6L / 400 / V8
5.7L / 350 / V8
Chevrolet C20 Scottsdale 1982 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C20 Scottsdale 1984 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C20 Scottsdale 1985 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C20 Scottsdale 1986 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C20 Silverado 1980 6.6L / 400 / V8
5.7L / 350 / V8
Chevrolet C20 Silverado 1982 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C20 Silverado 1983 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C20 Silverado 1984 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C20 Silverado 1985 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet C20 Silverado 1986 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K20 Cheyenne 1980 5.7L / 350 / V8
Chevrolet K20 Custom Deluxe 1980 5.7L / 350 / V8
Chevrolet K20 Custom 1981 5.7L / 350 / V8
Chevrolet K20 Custom 1982 5.7L / 350 / V8
Chevrolet K20 Custom 1983 5.7L / 350 / V8
Chevrolet K20 Custom 1984 5.7L / 350 / V8
Chevrolet K20 Custom 1985 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K20 Custom 1986 5.7L / 350 / V8
Chevrolet K20 Deluxe 1981 5.7L / 350 / V8
Chevrolet K20 Scottsdale 1980 5.7L / 350 / V8
Chevrolet K20 Scottsdale 1982 5.7L / 350 / V8
Chevrolet K20 Scottsdale 1984 5.7L / 350 / V8
Chevrolet K20 Scottsdale 1985 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K20 Scottsdale 1986 5.7L / 350 / V8
Chevrolet K20 Silverado 1980 5.7L / 350 / V8
Chevrolet K20 Silverado 1982 5.7L / 350 / V8
Chevrolet K20 Silverado 1983 5.7L / 350 / V8
Chevrolet K20 Silverado 1985 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K20 Silverado 1986 5.7L / 350 / V8
Chevrolet K2500 Base 1994 5.7L / 350 / V8
Chevrolet K2500 Base 1995 5.7L / 350 / V8
Chevrolet K2500 Cheyenne 1988 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet K2500 Cheyenne 1989 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet K2500 Cheyenne 1990 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet K2500 Cheyenne 1991 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet K2500 Cheyenne 1992 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet K2500 Cheyenne 1993 5.7L / 350 / V8
Chevrolet K2500 Cheyenne 1994 5.7L / 350 / V8
Chevrolet K2500 Cheyenne 1995 5.7L / 350 / V8
Chevrolet K2500 Scottsdale 1988 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K2500 Scottsdale 1989 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K2500 Scottsdale 1990 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K2500 Silverado 1988 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K2500 Silverado 1989 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K2500 Silverado 1990 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K2500 Silverado 1991 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K2500 Silverado 1992 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K2500 Silverado 1993 5.7L / 350 / V8
Chevrolet K2500 Silverado 1994 5.7L / 350 / V8
Chevrolet K2500 Silverado 1995 5.7L / 350 / V8
Chevrolet K2500 WT 1994 5.7L / 350 / V8
Chevrolet K2500 WT 1995 5.7L / 350 / V8
Chevrolet K3500 Cheyenne 1988 5.7L / 350 / V8
Chevrolet K3500 Cheyenne 1989 5.7L / 350 / V8
Chevrolet K3500 Cheyenne 1990 5.7L / 350 / V8
Chevrolet K3500 Cheyenne 1991 5.7L / 350 / V8
Chevrolet K3500 Cheyenne 1992 5.7L / 350 / V8
Chevrolet K3500 Scottsdale 1988 5.7L / 350 / V8
Chevrolet K3500 Scottsdale 1989 5.7L / 350 / V8
Chevrolet K3500 Scottsdale 1990 5.7L / 350 / V8
Chevrolet K3500 Silverado 1988 5.7L / 350 / V8
Chevrolet K3500 Silverado 1989 5.7L / 350 / V8
Chevrolet K3500 Silverado 1990 5.7L / 350 / V8
Chevrolet K3500 Silverado 1991 5.7L / 350 / V8
Chevrolet K3500 Silverado 1992 5.7L / 350 / V8
Chevrolet K5 Blazer Cheyenne 1980 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K5 Blazer Custom Deluxe 1980 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet K5 Blazer Custom 1981 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K5 Blazer Custom 1982 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K5 Blazer Custom 1983 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K5 Blazer Custom 1984 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K5 Blazer Custom 1985 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K5 Blazer Custom 1986 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K5 Blazer Deluxe 1981 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet K5 Blazer Scottsdale 1984 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet K5 Blazer Silverado 1980 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet K5 Blazer Silverado 1981 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet K5 Blazer Silverado 1982 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet K5 Blazer Silverado 1983 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet K5 Blazer Silverado 1984 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet K5 Blazer Silverado 1985 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet K5 Blazer Silverado 1986 5.7L / 350 / V8
5.0L / 305 / V8
GMC C1500 Sierra SLE 1988 5.7L / 350 / V8
GMC C1500 Sierra SLE 1989 5.7L / 350 / V8
GMC C1500 Sierra SLE 1990 5.7L / 350 / V8
GMC C1500 Sierra SLE 1991 5.7L / 350 / V8
GMC C1500 Sierra SLE 1992 5.7L / 350 / V8
GMC C1500 Sierra SLX 1988 5.7L / 350 / V8
GMC C1500 Sierra SLX 1989 5.7L / 350 / V8
GMC C1500 Sierra SLX 1990 5.7L / 350 / V8
GMC C1500 Sierra SLX 1991 5.7L / 350 / V8
GMC C1500 Sierra SLX 1992 5.7L / 350 / V8
GMC C1500 Sierra 1988 5.7L / 350 / V8
GMC C1500 Sierra 1989 5.7L / 350 / V8
GMC C1500 Sierra 1990 5.7L / 350 / V8
GMC C1500 Sierra 1991 5.7L / 350 / V8
GMC C1500 Sierra 1992 5.7L / 350 / V8
GMC Jimmy Base 1980 5.0L / 305 / V8
5.7L / 350 / V8
GMC Jimmy Base 1981 5.0L / 305 / V8
5.7L / 350 / V8
GMC Jimmy Base 1982 5.0L / 305 / V8
5.7L / 350 / V8
GMC Jimmy Base 1983 5.0L / 305 / V8
5.7L / 350 / V8
GMC Jimmy Base 1984 5.0L / 305 / V8
5.7L / 350 / V8
GMC Jimmy Base 1985 5.0L / 305 / V8
5.7L / 350 / V8
GMC Jimmy Base 1986 5.0L / 305 / V8
5.7L / 350 / V8
GMC Jimmy Base 1987 5.0L / 305 / V8
GMC K2500 Sierra SLE 1991 5.7L / 350 / V8
GMC K2500 Sierra SLE 1992 5.7L / 350 / V8
GMC K2500 Sierra SLE 1993 5.7L / 350 / V8
GMC K2500 Sierra SLE 1994 5.7L / 350 / V8
GMC K2500 Sierra SLE 1995 5.7L / 350 / V8
GMC K2500 Sierra SLT 1994 5.7L / 350 / V8
GMC K2500 Sierra SLT 1995 5.7L / 350 / V8
GMC K2500 Sierra SLX 1988 5.7L / 350 / V8
GMC K2500 Sierra SLX 1989 5.7L / 350 / V8
GMC K2500 Sierra SLX 1990 5.7L / 350 / V8
GMC K2500 Sierra SLX 1991 5.7L / 350 / V8
GMC K2500 Sierra SLX 1992 5.7L / 350 / V8
GMC K2500 Sierra SLX 1993 5.7L / 350 / V8
GMC K2500 Sierra SL 1994 5.7L / 350 / V8
GMC K2500 Sierra SL 1995 5.7L / 350 / V8
GMC K2500 Sierra 1993 5.7L / 350 / V8
GMC K3500 Sierra SLE 1988 5.7L / 350 / V8
GMC K3500 Sierra SLE 1989 5.7L / 350 / V8
GMC K3500 Sierra SLE 1990 5.7L / 350 / V8
GMC K3500 Sierra SLE 1991 5.7L / 350 / V8
GMC K3500 Sierra SLE 1992 5.7L / 350 / V8
GMC K3500 Sierra SLX 1988 5.7L / 350 / V8
GMC K3500 Sierra SLX 1989 5.7L / 350 / V8
GMC K3500 Sierra SLX 1990 5.7L / 350 / V8
GMC K3500 Sierra SLX 1991 5.7L / 350 / V8
GMC K3500 Sierra SLX 1992 5.7L / 350 / V8
GMC K3500 Sierra 1988 5.7L / 350 / V8
GMC K3500 Sierra 1989 5.7L / 350 / V8
GMC K3500 Sierra 1990 5.7L / 350 / V8
GMC K3500 Sierra 1991 5.7L / 350 / V8
GMC K3500 Sierra 1992 5.7L / 350 / V8

Specifications:

Automotive Item Grade High Performance
Body Height (in) 4
Body Length (in) 17
Body Width (in) 9.75
California Proposition 65 Required No
Color Black
Emission Code 5
Finish Paint
Fitment Universal
Inlet Connection Type Pipe Connection
Inlet Diameter (in) 2.5
Inlet Position Center
Material Aluminized Steel
Mount Type Uses New Hangers (Not Included)
Muffler Series 50 Series Delta Flow
Muffler Type Chambered
Outlet Connection Type Pipe Connection
Outlet Diameter (in) 2
Outlet Position Dual
Overall Length (in) 23, 23
Part Type Exhaust Muffler
Product Type Street Mufflers
Reversible No
Shape Oval
Sound Level Moderate Sound
Type of Muffler Chambered
Vehicle Type 4/6 CYL Engine, Classic Muscle Car, Truck/SUV, Street Rod, Late Model Muscle Car, Street/Strip
Warranty Time 36 Months

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