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Flowmaster 40 Series Chambered Muffler 42441

Flowmaster 40 Series Chambered Muffler 42441
Flowmaster 40 Series Chambered Muffler 42441Flowmaster 40 Series Chambered Muffler 42441
$157.99 ea
NEWARRIVING SOONEstimated Ship Date 05/20/2025 (If Ordered Today)100 Available from HOLLEY PERFORMANCE PRODUCTS as of 04/30/2025
Model: 4005041
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:
  • Excellent Street/Strip and Off Road application
  • Noticeable interior resonance
  • Aggressive Sound Exterior Exhaust Tone
  • Durable fully welded 16 gauge aluminized steel
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 Years Engine
Chevrolet S10 Blazer 1983 2.8L / 173 / V6
1.9L / 119 / L4
2.0L / 122 / L4
Chevrolet S10 Blazer 1984 2.8L / 173 / V6
1.9L / 119 / L4
2.0L / 122 / L4
2.2L / 134 / L4
Chevrolet S10 Blazer 1985 2.8L / 173 / V6
2.5L / 151 / L4
Chevrolet S10 Blazer 1986 2.8L / 173 / V6
2.5L / 151 / L4
Chevrolet S10 Blazer 1987 2.8L / 173 / V6
2.5L / 151 / L4
Chevrolet S10 Blazer 1988 2.8L / 173 / V6
2.5L / 151 / L4
4.3L / 262 / V6
Chevrolet S10 Blazer 1989 2.8L / 173 / V6
4.3L / 262 / V6
Chevrolet S10 Blazer 1990 4.3L / 262 / V6
Chevrolet S10 Blazer 1991 4.3L / 262 / V6
Chevrolet S10 Blazer 1992 4.3L / 262 / V6
Chevrolet S10 Blazer 1993 4.3L / 262 / V6
Chevrolet S10 Blazer 1994 4.3L / 262 / V6
Chevrolet S10 1983 1.9L / 119 / L4
2.8L / 173 / V6
2.2L / 134 / L4
2.0L / 122 / L4
Chevrolet S10 1984 1.9L / 119 / L4
2.8L / 173 / V6
2.2L / 134 / L4
2.0L / 122 / L4
Chevrolet S10 1985 2.5L / 151 / L4
1.9L / 119 / L4
2.8L / 173 / V6
2.2L / 134 / L4
Chevrolet S10 1986 2.5L / 151 / L4
2.8L / 173 / V6
Chevrolet S10 1987 2.5L / 151 / L4
2.8L / 173 / V6
Chevrolet S10 1988 2.5L / 151 / L4
4.3L / 262 / V6
2.8L / 173 / V6
Chevrolet S10 1989 2.5L / 151 / L4
4.3L / 262 / V6
2.8L / 173 / V6
Chevrolet S10 1990 2.5L / 151 / L4
4.3L / 262 / V6
2.8L / 173 / V6
Chevrolet S10 1991 2.5L / 151 / L4
4.3L / 262 / V6
2.8L / 173 / V6
Chevrolet S10 1992 2.5L / 151 / L4
4.3L / 262 / V6
2.8L / 173 / V6
Chevrolet S10 1993 2.5L / 151 / L4
4.3L / 262 / V6
2.8L / 173 / V6
Chevrolet S10 1994 4.3L / 262 / V6
2.2L / 134 / L4
Chevrolet S10 1995 4.3L / 262 / V6
2.2L / 134 / L4
Chevrolet S10 1996 4.3L / 262 / V6
2.2L / 134 / L4
Chevrolet S10 1997 4.3L / 262 / V6
2.2L / 134 / L4
Ford Explorer 1991 4.0L / 245 / V6
Ford Explorer 1992 4.0L / 245 / V6
Ford Explorer 2001 4.0L / 245 / V6
Ford Explorer 2002 4.0L / 245 / V6
Ford Explorer 2003 4.0L / 245 / V6
Ford Explorer 2004 4.0L / 245 / V6
Ford Explorer 2005 4.0L / 245 / V6
Ford Explorer 2006 4.0L / 245 / V6
Ford Explorer 2007 4.0L / 245 / V6
Ford Explorer 2008 4.0L / 245 / V6
Ford Explorer 2009 4.0L / 245 / V6
Ford Explorer 2010 4.0L / 245 / V6
Ford F-150 1975 5.0L / 302 / V8
7.5L / 460 / V8
5.9L / 360 / V8
4.9L / 300 / L6
6.4L / 390 / V8
Ford F-150 1976 5.0L / 302 / V8
7.5L / 460 / V8
5.9L / 360 / V8
4.9L / 300 / L6
6.4L / 390 / V8
Ford F-150 1977 5.0L / 302 / V8
6.6L / 400 / V8
7.5L / 460 / V8
4.9L / 300 / L6
5.8L / 351 / V8
Ford F-150 1978 5.0L / 302 / V8
6.6L / 400 / V8
7.5L / 460 / V8
4.9L / 300 / L6
5.8L / 351 / V8
Ford F-150 1979 5.0L / 302 / V8
6.6L / 400 / V8
7.5L / 460 / V8
4.9L / 300 / L6
5.8L / 351 / V8
Ford F-150 1980 5.0L / 302 / V8
4.9L / 300 / L6
5.8L / 351 / V8
Ford F-150 1981 5.0L / 302 / V8
4.9L / 300 / L6
5.8L / 351 / V8
Ford F-150 1982 5.0L / 302 / V8
4.9L / 300 / L6
5.8L / 351 / V8
Ford F-150 1983 5.0L / 302 / V8
4.9L / 300 / L6
5.8L / 351 / V8
Ford F-150 1984 5.0L / 302 / V8
4.9L / 300 / L6
6.9L / 420 / V8
5.8L / 351 / V8
Ford F-150 1985 5.0L / 302 / V8
4.9L / 300 / L6
5.8L / 351 / V8
Ford F-150 1986 5.0L / 302 / V8
4.9L / 300 / L6
5.8L / 351 / V8
Ford F-250 1975 6.4L / 390 / V8
5.9L / 360 / V8
4.9L / 300 / L6
7.5L / 460 / V8
Ford F-250 1976 6.4L / 390 / V8
5.9L / 360 / V8
4.9L / 300 / L6
7.5L / 460 / V8
Ford F-250 1977 5.0L / 302 / V8
6.6L / 400 / V8
5.8L / 351 / V8
4.9L / 300 / L6
7.5L / 460 / V8
Ford F-250 1978 5.0L / 302 / V8
6.6L / 400 / V8
5.8L / 351 / V8
4.9L / 300 / L6
7.5L / 460 / V8
Ford F-250 1979 6.6L / 400 / V8
5.8L / 351 / V8
4.9L / 300 / L6
7.5L / 460 / V8
Ford F-250 1980 5.0L / 302 / V8
6.6L / 400 / V8
5.8L / 351 / V8
4.9L / 300 / L6
Ford F-250 1981 5.0L / 302 / V8
6.6L / 400 / V8
5.8L / 351 / V8
4.9L / 300 / L6
Ford F-250 1982 5.0L / 302 / V8
6.6L / 400 / V8
5.8L / 351 / V8
4.9L / 300 / L6
Ford F-250 1983 5.0L / 302 / V8
5.8L / 351 / V8
4.9L / 300 / L6
7.5L / 460 / V8
Ford F-250 1984 5.0L / 302 / V8
5.8L / 351 / V8
4.9L / 300 / L6
7.5L / 460 / V8
Ford F-250 1985 5.0L / 302 / V8
5.8L / 351 / V8
4.9L / 300 / L6
7.5L / 460 / V8
Ford F-250 1986 5.0L / 302 / V8
5.8L / 351 / V8
4.9L / 300 / L6
7.5L / 460 / V8
Ford F-350 1975 5.9L / 360 / V8
7.5L / 460 / V8
6.4L / 390 / V8
5.0L / 302 / V8
4.9L / 300 / L6
Ford F-350 1976 5.9L / 360 / V8
7.5L / 460 / V8
6.4L / 390 / V8
5.0L / 302 / V8
4.9L / 300 / L6
Ford F-350 1977 7.5L / 460 / V8
5.8L / 351 / V8
5.0L / 302 / V8
6.6L / 400 / V8
4.9L / 300 / L6
Ford F-350 1978 7.5L / 460 / V8
5.8L / 351 / V8
5.0L / 302 / V8
6.6L / 400 / V8
4.9L / 300 / L6
Ford F-350 1979 7.5L / 460 / V8
5.8L / 351 / V8
6.6L / 400 / V8
4.9L / 300 / L6
Ford F-350 1980 5.8L / 351 / V8
5.0L / 302 / V8
6.6L / 400 / V8
4.9L / 300 / L6
Ford F-350 1981 5.8L / 351 / V8
6.6L / 400 / V8
4.9L / 300 / L6
Ford F-350 1982 5.8L / 351 / V8
6.6L / 400 / V8
4.9L / 300 / L6
Ford F-350 1983 7.5L / 460 / V8
5.8L / 351 / V8
4.9L / 300 / L6
Ford F-350 1984 7.5L / 460 / V8
5.8L / 351 / V8
4.9L / 300 / L6
Ford F-350 1985 7.5L / 460 / V8
5.8L / 351 / V8
4.9L / 300 / L6
Ford F-350 1986 7.5L / 460 / V8
5.8L / 351 / V8
4.9L / 300 / L6
GMC Jimmy 1992 4.3L / 262 / V6
GMC Jimmy 1993 4.3L / 262 / V6
GMC Jimmy 1994 4.3L / 262 / V6
GMC Jimmy 1995 4.3L / 262 / V6
GMC Jimmy 1996 4.3L / 262 / V6
GMC Jimmy 1997 4.3L / 262 / V6
GMC S15 Jimmy 1983 2.0L / 122 / L4
2.8L / 173 / V6
1.9L / 119 / L4
GMC S15 Jimmy 1984 2.0L / 122 / L4
2.8L / 173 / V6
1.9L / 119 / L4
GMC S15 Jimmy 1985 2.5L / 151 / L4
2.8L / 173 / V6
GMC S15 Jimmy 1986 2.5L / 151 / L4
2.8L / 173 / V6
GMC S15 Jimmy 1987 2.5L / 151 / L4
2.8L / 173 / V6
GMC S15 Jimmy 1988 2.5L / 151 / L4
4.3L / 262 / V6
2.8L / 173 / V6
GMC S15 Jimmy 1989 4.3L / 262 / V6
2.8L / 173 / V6
GMC S15 Jimmy 1990 4.3L / 262 / V6
GMC S15 Jimmy 1991 4.3L / 262 / V6
GMC S15 1983 2.0L / 122 / L4
1.9L / 119 / L4
2.8L / 173 / V6
GMC S15 1984 2.0L / 122 / L4
1.9L / 119 / L4
2.2L / 134 / L4
2.8L / 173 / V6
GMC S15 1985 1.9L / 119 / L4
2.2L / 134 / L4
2.8L / 173 / V6
2.5L / 151 / L4
GMC S15 1986 2.8L / 173 / V6
2.5L / 151 / L4
GMC S15 1987 2.8L / 173 / V6
2.5L / 151 / L4
GMC S15 1988 4.3L / 262 / V6
2.8L / 173 / V6
2.5L / 151 / L4
GMC S15 1989 4.3L / 262 / V6
2.8L / 173 / V6
2.5L / 151 / L4
GMC S15 1990 4.3L / 262 / V6
2.8L / 173 / V6
2.5L / 151 / L4
GMC Sonoma 1991 2.8L / 173 / V6
4.3L / 262 / V6
2.5L / 151 / L4
GMC Sonoma 1992 2.8L / 173 / V6
4.3L / 262 / V6
2.5L / 151 / L4
GMC Sonoma 1993 2.8L / 173 / V6
4.3L / 262 / V6
2.5L / 151 / L4
GMC Sonoma 1994 2.2L / 134 / L4
4.3L / 262 / V6
GMC Sonoma 1995 2.2L / 134 / L4
4.3L / 262 / V6
GMC Sonoma 1996 2.2L / 134 / L4
4.3L / 262 / V6
GMC Sonoma 1997 2.2L / 134 / L4
4.3L / 262 / V6

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
Muffler Series Original 40 Series
Muffler Type Chambered
Outlet Connection Type Pipe Connection
Outlet Diameter (in) 2.25
Outlet Position Center
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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