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Flowmaster Exhaust Muffler 42443 product image 1
Flowmaster Exhaust Muffler 42443 product image 2
Flowmaster Exhaust Muffler 42443 product image 3

Flowmaster Exhaust Muffler 42443

SKU: 42443

$101.95

Flowmaster Exhaust Muffler 42443

Limited 3 Year Warranty
Flowmaster Exhaust Muffler 42443

Noticeable Interior Resonance
Flowmaster Exhaust Muffler 42443

Aggressive Sound Exterior Exhaust Tone
Flowmaster Exhaust Muffler 42443

Durable Fully Welded 16 Gauge Aluminized Steel
Flowmaster Exhaust Muffler 42443

Excellent Street Or Strip And Off Road Application

Verified U.S. Supplier

Fitment Data Included

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In stock 131

Emissions & Compliance

Emissions Compliance Exempt
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Flowmaster Exhaust Muffler 42443

$101.95

$101.95

2-1/4 Inch

Inlet Diameter

2-1/4 Inch

Outlet Diameter

Aluminized Steel

Material

Product Description

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.

Specifications

Inlet Diameter (IN)
2-1/4 Inch
Outlet Diameter (IN)
2-1/4 Inch
Material
Aluminized Steel
Shape
Oval
Inlet Position
Offset Single
Outlet Position
Offset Single
Universality
Semi-Universal
Estimated Install Time (Hours)
1
Case Diameter (IN)
9-1/2 Inch X 4 Inch
Case Length (IN)
13 Inch
Overall Length (IN)
19 Inch
Color/ Finish
Black Painted
Wall Type
Single Wall
Includes Tip
Without Tip
Tip Length (IN)
Without Tip
Tip Diameter (IN)
Without Tip
Tip Finish
Without Tip
Tip Material
Without Tip

Fitment / Application

1967-1969 Chevrolet Caprice L6; 4.1L/4097; GAS; 1BBL
1967 Chevrolet Caprice V8; 4.6L/4638; GAS; 2BBL
1967-1969 Chevrolet Caprice L6; 4.1L/4098; GAS; 1BBL
1967 Chevrolet Caprice V8; 4.6L/4638; GAS; 4BBL
1968 Chevrolet Caprice V8; 5.0L/5031; GAS; 2BBL
1970-1973 Chevrolet Caprice V8; 5.7L/350; GAS; 2BBL
1970-1972 Chevrolet Caprice V8; 7.4L/7441; GAS; 4BBL
1970-1971 Chevrolet Caprice V8; 6.6L/6588; GAS; 4BBL
1970-1971 Chevrolet Caprice V8; 5.7L/350; GAS; 4BBL
1970-1971 Chevrolet Caprice V8; 7.4L/7439; GAS; 4BBL
1970-1973 Chevrolet Caprice V8; 6.6L/400; GAS; 2BBL
1970-1973 Chevrolet Caprice V8; 6.6L/400; GAS; 4BBL; Rochester
1972 Chevrolet Caprice V8; 6.6L/6588; GAS; 4BBL; VIN S
1972 Chevrolet Caprice V8; 6.6L/6588; GAS; 4BBL; VIN U
1972-1973 Chevrolet Caprice V8; 5.7L/350; GAS; 4BBL; VIN K
1972-1973 Chevrolet Caprice V8; 5.7L/350; GAS; 4BBL; VIN L
1972 Chevrolet Caprice V8; 7.4L/7439; GAS; 4BBL; VIN V
1972 Chevrolet Caprice V8; 7.4L/7439; GAS; 4BBL; VIN W
1972-1973 Chevrolet Caprice V8; 5.7L/350; GAS; 4BBL; VIN J
1973-1974 Chevrolet C10 Suburban L6; 4.8L/4801; GAS; 1BBL
1973 Chevrolet C10 Suburban V8; 5.0L/5031; GAS; 2BBL
1973-1974 Chevrolet C10 Suburban V8; 5.7L/350; LPG; 4BBL
1973-1974 Chevrolet C10 Suburban V8; 5.7L/350; LPG; 4BBL; VIN W
1973-1974 Chevrolet C10 Suburban L6; 4.1L/4097; GAS; 1BBL
1973-1974 Chevrolet C10 Suburban L6; 4.8L/4786; GAS; 1BBL
1973-1974 Chevrolet C10 Suburban V8; 7.4L/7439; GAS; 4BBL; VIN L
1973-1974 Chevrolet C10 Suburban V8; 7.4L/7441; GAS; 4BBL
1973-1974 Chevrolet C10 Suburban L6; 4.1L/4098; GAS; 1BBL
1973-1977, 1981-1984 Chevrolet C10 Suburban V8; 5.7L/350; GAS; 4BBL
1973-1974 Chevrolet C10 Suburban V8; 5.7L/350; LPG; 2BBL
1973-1974 Chevrolet C10 Suburban V8; 5.7L/350; LPG; 2BBL; VIN W
1973-1974 Chevrolet C10 Suburban L6; 4.1L/4097; LPG; 1BBL
1973-1974 Chevrolet C10 Suburban V8; 7.4L/7439; GAS; 4BBL; VIN Z
1973 Chevrolet Caprice V8; 7.4L/7439; GAS; 4BBL; VIN Y
1973 Chevrolet Caprice V8; 7.4L/7441; GAS; 4BBL; VIN X
1973 Chevrolet Caprice V8; 5.7L/350; GAS; 4BBL; VIN T
1973 Chevrolet Caprice V8; 7.4L/7441; GAS; 4BBL; VIN Y
1973 Chevrolet Caprice V8; 6.6L/400; GAS; 4BBL
1973 Chevrolet Caprice V8; 7.4L/7439; GAS; 4BBL; VIN X
1973-1974 Chevrolet K10 Suburban V8; 5.7L/350; LPG; 2BBL
1973-1974 Chevrolet K10 Suburban V8; 5.7L/350; LPG; 4BBL
1973-1974 Chevrolet K10 Suburban V8; 5.7L/350; LPG; 4BBL; VIN W
1973-1974 Chevrolet K10 Suburban L6; 4.1L/4098; GAS; 1BBL
1973-1974 Chevrolet K10 Suburban V8; 5.7L/350; LPG; 2BBL; VIN W
1973-1974 Chevrolet K10 Suburban L6; 4.1L/4097; GAS; 1BBL
1973-1974, 1976-1979, 1981-1984 Chevrolet K10 Suburban V8; 5.7L/350; GAS; 4BBL
1973-1974 Chevrolet K10 Suburban L6; 4.1L/4097; LPG; 1BBL
1973 Chevrolet K10 Suburban V8; 5.0L/5031; GAS; 2BBL
1973-1974 GMC C15/C1500 Suburban V8; 7.4L/7439; GAS; 4BBL; VIN Z
1973-1974 GMC C15/C1500 Suburban L6; 4.1L/4097; GAS; 1BBL
1973-1974 GMC C15/C1500 Suburban V8; 5.7L/350; GAS; 4BBL
1973-1974 GMC C15/C1500 Suburban V8; 5.7L/350; LPG; 2BBL
1973-1974 GMC C15/C1500 Suburban V8; 5.7L/350; LPG; 4BBL; VIN W
1973-1974 GMC C15/C1500 Suburban L6; 4.1L/4098; GAS; 1BBL
1973-1974 GMC C15/C1500 Suburban L6; 4.8L/4801; GAS; 1BBL
1973-1974 GMC C15/C1500 Suburban V8; 7.4L/7441; GAS; 4BBL
1973-1974 GMC C15/C1500 Suburban V8; 5.7L/350; LPG; 2BBL; VIN W
1973-1974 GMC C15/C1500 Suburban V8; 7.4L/7439; GAS; 4BBL; VIN L
1973-1974 GMC C15/C1500 Suburban V8; 5.7L/350; LPG; 4BBL
1973-1974 GMC C15/C1500 Suburban L6; 4.8L/4786; GAS; 1BBL
1973-1974 GMC C15/C1500 Suburban L6; 4.1L/4097; LPG; 1BBL
1973 GMC C15/C1500 Suburban V8; 5.0L/5031; GAS; 2BBL
1973-1974 GMC K15/K1500 Suburban V8; 5.7L/350; LPG; 2BBL; VIN W
1973-1974 GMC K15/K1500 Suburban L6; 4.1L/4097; GAS; 1BBL
1973 GMC K15/K1500 Suburban V8; 5.0L/5031; GAS; 2BBL
1973-1974 GMC K15/K1500 Suburban V8; 5.7L/350; GAS; 4BBL
1973-1974 GMC K15/K1500 Suburban V8; 5.7L/350; LPG; 2BBL
1973-1974 GMC K15/K1500 Suburban V8; 5.7L/350; LPG; 4BBL
1973-1974 GMC K15/K1500 Suburban L6; 4.1L/4097; LPG; 1BBL
1973-1974 GMC K15/K1500 Suburban L6; 4.1L/4098; GAS; 1BBL
1973-1974 GMC K15/K1500 Suburban V8; 5.7L/350; LPG; 4BBL; VIN W
1974 Chevrolet C10 Suburban L6; 4.8L/4801; LPG; 1BBL
1974 Chevrolet C10 Suburban V8; 5.7L/350; GAS; 2BBL; Rochester
1974-1976 Chevrolet C10 Suburban V8; 5.7L/350; GAS; 2BBL
1974, 1976 Chevrolet K10 Suburban V8; 5.7L/350; GAS; 2BBL
1974 Chevrolet K10 Suburban V8; 5.7L/350; GAS; 2BBL; Rochester
1974 GMC C15/C1500 Suburban L6; 4.8L/4801; LPG; 1BBL
1974 GMC C15/C1500 Suburban V8; 5.7L/350; GAS; 2BBL
1974 GMC C15/C1500 Suburban V8; 5.7L/350; GAS; 2BBL; Rochester
1974 GMC K15/K1500 Suburban V8; 5.7L/350; GAS; 2BBL
1974 GMC K15/K1500 Suburban V8; 7.4L/7439; GAS; 4BBL; VIN Z
1974 GMC K15/K1500 Suburban V8; 7.4L/7439; GAS; 4BBL; VIN L
1974 GMC K15/K1500 Suburban V8; 5.7L/350; GAS; 2BBL; Rochester
1975-1976 Buick Skylark V8; 5.7L/5733; GAS; 4BBL
1975-1976 Buick Skylark V8; 5.7L/5733; GAS; 2BBL
1975-1976 Buick Skylark V8; 4.3L/260; GAS; 2BBL
1975-1980 Chevrolet C10 Suburban V8; 7.4L/454; GAS; 4BBL
1975-1980 Chevrolet C10 Suburban L6; 4.1L/250; GAS; 1BBL
1975-1980 Chevrolet K10 Suburban L6; 4.1L/250; GAS; 1BBL
1975-1978 GMC K15 Suburban L6; 4.1L/250; GAS; 1BBL
1976-1978 GMC C15 Suburban V8; 7.4L/454; GAS; 4BBL
1976-1977 GMC C15 Suburban V8; 5.7L/350; GAS; 4BBL
1976-1978 GMC C15 Suburban L6; 4.1L/250; GAS; 1BBL
1976 GMC C15 Suburban V8; 5.7L/350; GAS; 2BBL
1976 GMC K15 Suburban V8; 5.7L/350; GAS; 2BBL
1976-1978 GMC K15 Suburban V8; 5.7L/350; GAS; 4BBL
1977 Buick Skylark V8; 4.9L/301; GAS; 2BBL
1977 Buick Skylark V8; 5.7L/350; GAS; 4BBL; Oldsmobile
1977 Buick Skylark V8; 5.0L/305; GAS; 2BBL
1977 Buick Skylark V8; 5.7L/350; GAS; 4BBL; Chevrolet
1977-1979 Chevrolet C10 Suburban V8; 5.0L/305; GAS; 2BBL
1977-1979 Chevrolet K10 Suburban V8; 5.0L/305; GAS; 2BBL
1977-1978 GMC C15 Suburban V8; 5.0L/305; GAS; 2BBL
1977-1978 GMC K15 Suburban V8; 5.0L/305; GAS; 2BBL
1978-1979 Chevrolet C10 Suburban V8; 5.7L/350; DIESEL; MFI; IFI
1978-1979 Chevrolet C10 Suburban V8; 5.7L/350; GAS; 4BBL; Rochester
1978 GMC C15 Suburban V8; 5.7L/350; GAS; 4BBL; Rochester
1978 GMC C15 Suburban V8; 5.7L/350; DIESEL; MFI; IFI
1978 Oldsmobile Cutlass Salon V8; 5.0L/305; GAS; 4BBL; LG4 ENG.
1978 Oldsmobile Cutlass Supreme V8; 5.7L/350; GAS; 4BBL
1979 GMC C1500 Suburban V8; 5.7L/350; GAS; 4BBL; Rochester
1979-1980 GMC C1500 Suburban L6; 4.1L/250; GAS; 1BBL
1979 GMC C1500 Suburban V8; 5.0L/305; GAS; 2BBL
1979 GMC C1500 Suburban V8; 5.7L/350; DIESEL; MFI; IFI
1979-1980 GMC C1500 Suburban V8; 7.4L/454; GAS; 4BBL
1979, 1982-1983 GMC K1500 Suburban V8; 5.7L/350; GAS; 4BBL
1979-1980 GMC K1500 Suburban L6; 4.1L/250; GAS; 1BBL
1979 GMC K1500 Suburban V8; 5.0L/305; GAS; 2BBL
1979 Oldsmobile Cutlass Calais V8; 5.7L/350; GAS; 4BBL
1979-1980 Oldsmobile Cutlass Salon V8; 5.0L/305; GAS; 4BBL
1979 Oldsmobile Cutlass Salon V8; 5.7L/350; GAS; 4BBL
1980 Chevrolet C10 Suburban V8; 5.7L/350; DIESEL; MFI
1980 Chevrolet C10 Suburban V8; 5.7L/350; GAS; 4BBL; Rochester; VIN L
1980 Chevrolet C10 Suburban V8; 7.4L/454; GAS; 4BBL; Chevrolet
1980 Chevrolet C10 Suburban V8; 5.7L/350; GAS; 4BBL; Rochester; VIN M
1980, 1985-1986 Chevrolet K10 Suburban V8; 5.7L/350; GAS; 4BBL; VIN M
1980, 1985-1986 Chevrolet K10 Suburban V8; 5.7L/350; GAS; 4BBL; VIN L
1980 GMC C1500 Suburban V8; 7.4L/454; GAS; 4BBL; Chevrolet
1980-1981 GMC C1500 Suburban V8; 5.7L/350; GAS; 4BBL; Rochester; VIN M
1980 GMC C1500 Suburban V8; 5.7L/350; DIESEL; MFI
1980-1981 GMC C1500 Suburban V8; 5.7L/350; GAS; 4BBL; Rochester; VIN L
1980-1981 GMC K1500 Suburban V8; 5.7L/350; GAS; 4BBL; VIN L
1980-1981 GMC K1500 Suburban V8; 5.7L/350; GAS; 4BBL; VIN M
1980 Oldsmobile Cutlass V8; 5.7L/350; DIESEL; MFI; IFI
1980 Oldsmobile Cutlass V8; 5.7L/350; GAS; 4BBL; Rochester
1980 Oldsmobile Cutlass V8; 5.0L/305; GAS; 4BBL
1980 Oldsmobile Cutlass Calais V8; 5.0L/305; GAS; 4BBL
1980 Oldsmobile Cutlass Calais V8; 5.7L/350; GAS; 4BBL; Rochester
1980 Oldsmobile Cutlass Calais V8; 5.7L/350; DIESEL; MFI; IFI
1980 Oldsmobile Cutlass Cruiser V8; 5.7L/350; DIESEL; MFI; IFI
1980, 1982 Oldsmobile Cutlass Cruiser V8; 5.0L/305; GAS; 4BBL
1980 Oldsmobile Cutlass Cruiser V8; 5.7L/350; GAS; 4BBL; Rochester
1980, 1985 Oldsmobile Cutlass Salon V8; 5.7L/350; DIESEL; MFI
1980 Oldsmobile Cutlass Supreme V8; 5.7L/350; GAS; 4BBL; Rochester
1980 Oldsmobile Cutlass Supreme V8; 5.7L/350; DIESEL; MFI; IFI
1980 Oldsmobile Cutlass Supreme V8; 5.0L/305; GAS; 4BBL
1981-1986 Chevrolet C10 Suburban V8; 5.0L/305; GAS; 4BBL
1981, 1983, 1986 Chevrolet K10 Suburban V8; 5.0L/305; GAS; 4BBL
1981-1986 GMC C1500 Suburban V8; 5.0L/305; GAS; 4BBL
1981 Oldsmobile Cutlass V8; 5.7L/350; DIESEL; MFI
1981, 1983-1984 Oldsmobile Cutlass Calais V8; 5.7L/350; DIESEL; MFI
1981-1983 Oldsmobile Cutlass Cruiser V8; 5.7L/350; DIESEL; MFI
1981-1982 Oldsmobile Cutlass Cruiser V8; 5.0L/307; GAS; 4BBL
1981-1985 Oldsmobile Cutlass Supreme V8; 5.7L/350; DIESEL; MFI
1982-1986 Chevrolet C10 Suburban V8; 6.2L/379; DIESEL; MFI
1982-1986 Chevrolet K10 Suburban V8; 6.2L/379; DIESEL; MFI
1982-1986 GMC C1500 Suburban V8; 6.2L/379; DIESEL; MFI
1982-1984 GMC C1500 Suburban V8; 5.7L/350; GAS; 4BBL
1982-1983 GMC K1500 Suburban V8; 6.2L/379; DIESEL; MFI
1982 GMC K1500 Suburban V8; 5.0L/305; GAS; 4BBL
1982 Oldsmobile Cutlass Calais V8; 5.0L/307; GAS; 4BBL
1982 Oldsmobile Cutlass Supreme V8; 5.0L/307; GAS; 4BBL
1985-1986 Chevrolet C10 Suburban V8; 5.7L/350; GAS; 4BBL; VIN L
1985-1986 Chevrolet C10 Suburban V8; 5.7L/350; GAS; 4BBL; VIN M
1985-1986 GMC C1500 Suburban V8; 5.7L/350; GAS; 4BBL; VIN M
1985-1986 GMC C1500 Suburban V8; 5.7L/350; GAS; 4BBL; VIN L
1986 Ford Mustang L4; 2.3L/140; GAS; 1BBL; Carter
1986-1987 Ford Mustang V8; 5.0L/302; GAS; MFI
1987-1996 Ford Bronco V8; 5.0L/302; GAS; MFI
1987 Ford Bronco V8; 5.8L/5753; GAS; 4BBL
1987 Oldsmobile Cutlass Salon V8; 5.0L/307; GAS; 4BBL
1988-1996 Ford Bronco V8; 5.8L/5753; GAS; MFI
1988-1992 Ford Mustang V8; 5.0L/302; GAS; MFI; LX
1988-1992 Ford Mustang V8; 5.0L/302; GAS; MFI; GT
1993-1995 Chevrolet Camaro V6; 3.4L/207; GAS; MFI
1993 Ford Mustang V8; 5.0L/302; GAS; MFI; VIN E; GT
1993-1995 Ford Mustang V8; 5.0L/302; GAS; MFI; VIN D; GT
1993 Ford Mustang V8; 5.0L/302; GAS; MFI; VIN E; SVT Cobra R
1993-1995 Ford Mustang V8; 5.0L/302; GAS; MFI; VIN D; SVT Cobra
1993 Ford Mustang V8; 5.0L/302; GAS; MFI; VIN E; LX
1993 Ford Mustang V8; 5.0L/302; GAS; MFI; VIN E; SVT Cobra
1993 Ford Mustang V8; 5.0L/302; GAS; MFI; VIN D; SVT Cobra R
1993 Ford Mustang V8; 5.0L/302; GAS; MFI; VIN D; LX
1993-1995 Pontiac Firebird V6; 3.4L/207; GAS; MFI
1994-1995 Ford Mustang V8; 5.0L/302; GAS; MFI; VIN T; SVT Cobra
1994-1995 Ford Mustang V8; 5.0L/302; GAS; MFI; VIN T; GT
1995-2002 Chevrolet Camaro V6; 3.8L/3800; GAS; MFI
1995 Ford Mustang V8; 5.0L/302; GAS; MFI; VIN D; GTS
1995 Ford Mustang V8; 5.0L/302; GAS; MFI; VIN T; GTS
1995-2002 Pontiac Firebird V6; 3.8L/3800; GAS; MFI
1996-1999, 2001, 2003-2004 Ford Mustang V8; 4.6L/281; GAS; MFI; SOHC; GT
1996-1999, 2001, 2003-2004 Ford Mustang V8; 4.6L/281; GAS; MFI; DOHC; GT
2000, 2002 Ford Mustang V8; 4.6L/281; GAS; MFI
2001 Ford Mustang V8; 4.6L/281; GAS; MFI; DOHC; GT Bullitt
2001 Ford Mustang V8; 4.6L/281; GAS; MFI; SOHC; GT Bullitt
2003-2004 Ford Mustang V8; 4.6L/281; GAS; MFI; DOHC; Mach 1
2003-2004 Ford Mustang V8; 4.6L/281; GAS; MFI; DOHC; Supercharged; Mach 1
2003-2004 Ford Mustang V8; 4.6L/281; GAS; MFI; DOHC; Supercharged; GT
2003-2004 Ford Mustang V8; 4.6L/281; GAS; MFI; SOHC; Mach 1

Installation & Documents



Installation Guide
Warranty Information