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Flowmaster 40 Series Chambered Muffler 42443

Flowmaster 40 Series Chambered Muffler 42443
Flowmaster 40 Series Chambered Muffler 42443Flowmaster 40 Series Chambered Muffler 42443
$143.99 ea
NEWARRIVING SOONEstimated Ship Date 12/10/2024 (If Ordered Today)100 Available from HOLLEY PERFORMANCE PRODUCTS as of 11/22/2024
Model: 3241439
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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The Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Features:
  • Durable fully welded 16 gauge aluminized steel
  • Aggressive Sound Exterior Exhaust Tone
  • Noticeable Interior Resonance
  • Excellent Street/Strip and Off Road application
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
street_applications.pdf190.94KB

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 C10 Suburban 1973 5.7L / 350 / V8
Chevrolet C10 Suburban 1974 5.7L / 350 / V8
Chevrolet C10 Suburban 1975 5.7L / 350 / V8
7.4L / 454 / V8
4.1L / 250 / L6
Chevrolet C10 Suburban 1976 5.7L / 350 / V8
7.4L / 454 / V8
4.1L / 250 / L6
Chevrolet C10 Suburban 1977 5.7L / 350 / V8
7.4L / 454 / V8
5.0L / 305 / V8
4.1L / 250 / L6
Chevrolet C10 Suburban 1978 5.7L / 350 / V8
7.4L / 454 / V8
5.0L / 305 / V8
4.1L / 250 / L6
Chevrolet C10 Suburban 1979 5.7L / 350 / V8
7.4L / 454 / V8
5.0L / 305 / V8
4.1L / 250 / L6
Chevrolet C10 Suburban 1980 5.7L / 350 / V8
7.4L / 454 / V8
4.1L / 250 / L6
Chevrolet C10 Suburban 1981 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C10 Suburban 1982 6.2L / 379 / V8
5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C10 Suburban 1983 6.2L / 379 / V8
5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C10 Suburban 1984 6.2L / 379 / V8
5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C10 Suburban 1985 6.2L / 379 / V8
5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet C10 Suburban 1986 6.2L / 379 / V8
5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet K10 Suburban 1973 5.7L / 350 / V8
Chevrolet K10 Suburban 1974 5.7L / 350 / V8
Chevrolet K10 Suburban 1975 4.1L / 250 / L6
5.7L / 350 / V8
Chevrolet K10 Suburban 1976 4.1L / 250 / L6
5.7L / 350 / V8
Chevrolet K10 Suburban 1977 4.1L / 250 / L6
5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K10 Suburban 1978 4.1L / 250 / L6
5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K10 Suburban 1979 4.1L / 250 / L6
5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K10 Suburban 1980 4.1L / 250 / L6
5.7L / 350 / V8
Chevrolet K10 Suburban 1981 5.0L / 305 / V8
5.7L / 350 / V8
Chevrolet K10 Suburban 1982 5.7L / 350 / V8
6.2L / 379 / V8
Chevrolet K10 Suburban 1983 5.0L / 305 / V8
5.7L / 350 / V8
6.2L / 379 / V8
Chevrolet K10 Suburban 1984 5.7L / 350 / V8
6.2L / 379 / V8
Chevrolet K10 Suburban 1985 5.7L / 350 / V8
6.2L / 379 / V8
Chevrolet K10 Suburban 1986 5.0L / 305 / V8
5.7L / 350 / V8
6.2L / 379 / V8
Chevrolet K5 Blazer 1976 6.6L / 400 / V8
5.7L / 350 / V8
Chevrolet K5 Blazer 1977 6.6L / 400 / V8
5.7L / 350 / V8
Chevrolet K5 Blazer 1978 6.6L / 400 / V8
5.7L / 350 / V8
Ford Bronco 1987 5.0L / 302 / V8
5.8L / 351 / V8
Ford Bronco 1988 5.0L / 302 / V8
5.8L / 351 / V8
Ford Bronco 1989 5.0L / 302 / V8
5.8L / 351 / V8
Ford Bronco 1990 5.0L / 302 / V8
5.8L / 351 / V8
Ford Bronco 1991 5.0L / 302 / V8
5.8L / 351 / V8
Ford Bronco 1992 5.0L / 302 / V8
5.8L / 351 / V8
Ford Bronco 1993 5.0L / 302 / V8
5.8L / 351 / V8
Ford Bronco 1994 5.0L / 302 / V8
5.8L / 351 / V8
Ford Bronco 1995 5.0L / 302 / V8
5.8L / 351 / V8
Ford Bronco 1996 5.0L / 302 / V8
5.8L / 351 / V8
GMC C15 Suburban Base 1975 7.4L / 454 / V8
GMC C15 Suburban 1975 5.7L / 350 / V8
4.1L / 250 / L6
7.4L / 454 / V8
GMC C15 Suburban 1976 5.7L / 350 / V8
4.1L / 250 / L6
7.4L / 454 / V8
GMC C15 Suburban 1977 5.7L / 350 / V8
4.1L / 250 / L6
7.4L / 454 / V8
5.0L / 305 / V8
GMC C15 Suburban 1978 5.7L / 350 / V8
4.1L / 250 / L6
7.4L / 454 / V8
5.0L / 305 / V8
GMC C15/C1500 Suburban 1973
GMC C15/C1500 Suburban 1974
GMC C1500 Suburban 1979 5.7L / 350 / V8
7.4L / 454 / V8
5.0L / 305 / V8
4.1L / 250 / L6
GMC C1500 Suburban 1980 5.7L / 350 / V8
7.4L / 454 / V8
4.1L / 250 / L6
GMC C1500 Suburban 1981 5.7L / 350 / V8
5.0L / 305 / V8
GMC C1500 Suburban 1982 6.2L / 379 / V8
5.7L / 350 / V8
5.0L / 305 / V8
GMC C1500 Suburban 1983 6.2L / 379 / V8
5.7L / 350 / V8
5.0L / 305 / V8
GMC C1500 Suburban 1984 6.2L / 379 / V8
5.7L / 350 / V8
5.0L / 305 / V8
GMC C1500 Suburban 1985 6.2L / 379 / V8
5.7L / 350 / V8
5.0L / 305 / V8
GMC C1500 Suburban 1986 6.2L / 379 / V8
5.7L / 350 / V8
5.0L / 305 / V8
GMC Jimmy 1976 5.7L / 350 / V8
6.6L / 400 / V8
GMC Jimmy 1977 5.7L / 350 / V8
6.6L / 400 / V8
GMC Jimmy 1978 5.7L / 350 / V8
6.6L / 400 / V8
GMC K15 Suburban 1975 5.7L / 350 / V8
4.1L / 250 / L6
GMC K15 Suburban 1976 5.7L / 350 / V8
4.1L / 250 / L6
GMC K15 Suburban 1977 5.0L / 305 / V8
5.7L / 350 / V8
4.1L / 250 / L6
GMC K15 Suburban 1978 5.0L / 305 / V8
5.7L / 350 / V8
4.1L / 250 / L6
GMC K15/K1500 Suburban 1973
GMC K15/K1500 Suburban 1974
GMC K1500 Suburban 1979 5.0L / 305 / V8
5.7L / 350 / V8
4.1L / 250 / L6
GMC K1500 Suburban 1980 5.7L / 350 / V8
4.1L / 250 / L6
GMC K1500 Suburban 1981 5.7L / 350 / V8
GMC K1500 Suburban 1982 5.0L / 305 / V8
6.2L / 379 / V8
5.7L / 350 / V8
GMC K1500 Suburban 1983 6.2L / 379 / V8
5.7L / 350 / V8
GMC K1500 Suburban 1984 6.2L / 379 / V8
5.7L / 350 / V8
GMC K1500 Suburban 1985 6.2L / 379 / V8
5.7L / 350 / V8
GMC K1500 Suburban 1986 6.2L / 379 / V8
5.7L / 350 / V8

Specifications:

Automotive Item Grade High Performance
Body Height (in) 4
Body Length (in) 13
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) 2.25
Inlet Position Offset
Material Aluminized Steel
Mount Type Uses New Hangers (Not Included)
Muffler Series Original 40 Series
Muffler Type Chambered
Outlet Connection Type Pipe Connection
Outlet Diameter (in) 2.25
Outlet Position Offset
Overall Length (in) 19, 19
Part Type Exhaust Muffler
Product Type Street Mufflers
Reversible No
Shape Oval
Sound Level Aggressive Sound
Type of Muffler Chambered
Vehicle Type Classic Muscle Car, Truck/SUV, Street Rod, Late Model Muscle Car, Street/Strip
Warranty Time 36 Months

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