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Flowmaster 40 Series Delta Flow Chambered Muffler 942042

Flowmaster 40 Series Delta Flow Chambered Muffler 942042
Flowmaster 40 Series Delta Flow Chambered Muffler 942042Flowmaster 40 Series Delta Flow Chambered Muffler 942042
$211.99 ea
NEWARRIVING SOONEstimated Ship Date 09/17/2025 (If Ordered Today)63 Available from HOLLEY PERFORMANCE PRODUCTS as of 08/31/2025
Model: 4005567
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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This two chamber design incorporates Flowmaster's Delta Flow® technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over standard 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Features:
  • Durable fully welded 16 gauge aluminized steel
  • Race proven Delta Flow technology
  • Excellent Street/Strip and Off Road application
  • No internal packing to blowout
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

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 Bel Air 1955 4.3L / 265 / V8
Chevrolet Bel Air 1956 4.3L / 265 / V8
Chevrolet Bel Air 1957 4.6L / 283 / V8
Chevrolet Bel Air 1958 4.6L / 283 / V8
Chevrolet Bel Air 1959 4.6L / 283 / V8
Chevrolet Bel Air 1960 4.6L / 283 / V8
Chevrolet Bel Air 1961 5.7L / 348 / V8
Chevrolet Bel Air 1962 5.3L / 327 / V8
Chevrolet Bel Air 1963 4.6L / 283 / V8
Chevrolet Bel Air 1964 4.6L / 283 / V8
Chevrolet Biscayne 1958 4.6L / 283 / V8
Chevrolet Biscayne 1959 4.6L / 283 / V8
Chevrolet Biscayne 1960 4.6L / 283 / V8
Chevrolet Biscayne 1961 5.7L / 348 / V8
Chevrolet Biscayne 1962 5.3L / 327 / V8
Chevrolet Biscayne 1963 5.3L / 327 / V8
Chevrolet Biscayne 1964 6.7L / 409 / V8
Chevrolet Chevy II 1962 3.2L / 194 / L6
Chevrolet Chevy II 1963 4.6L / 283 / V8
Chevrolet Chevy II 1964 4.6L / 283 / V8
Chevrolet Chevy II 1965 5.3L / 327 / V8
Chevrolet Chevy II 1966 5.3L / 327 / V8
Chevrolet Chevy II 1967 5.3L / 327 / V8
Chevrolet Del Ray 1958 4.6L / 283 / V8
Chevrolet El Camino 1959 4.6L / 283 / V8
Chevrolet El Camino 1960 4.6L / 283 / V8
Chevrolet El Camino 1964 4.6L / 283 / V8
Chevrolet Impala SS 1964 4.6L / 283 / V8
6.7L / 409 / V8
5.4L / 327 / V8
Chevrolet Impala 1959 4.6L / 283 / V8
Chevrolet Impala 1960 5.7L / 348 / V8
Chevrolet Impala 1961 6.7L / 409 / V8
Chevrolet Impala 1962 6.7L / 409 / V8
Chevrolet Impala 1964 5.4L / 327 / V8
Chevrolet Two-Ten Series 1955 4.3L / 265 / V8
Chevrolet Two-Ten Series 1956 4.3L / 265 / V8
Chevrolet Two-Ten Series 1957 4.3L / 265 / V8
Dodge Neon ACR 2001 2.0L / 122 / L4
Dodge Neon ACR 2002 2.0L / 122 / L4
Dodge Neon Base 2001 2.0L / 122 / L4
Dodge Neon ES 2000 2.0L / 122 / L4
Dodge Neon ES 2001 2.0L / 122 / L4
Dodge Neon ES 2002 2.0L / 122 / L4
Dodge Neon High Line 2000 2.0L / 122 / L4
Dodge Neon R/T 2004 2.0L / 122 / L4
Dodge Neon SE 2001 2.0L / 122 / L4
Dodge Neon SE 2002 2.0L / 122 / L4
Dodge Neon SE 2003 2.0L / 122 / L4
Dodge Neon SE 2004 2.0L / 122 / L4
Dodge Neon SE 2005 2.0L / 122 / L4
Dodge Neon SXT 2003 2.0L / 122 / L4
Dodge Neon SXT 2004 2.0L / 122 / L4
Dodge Neon SXT 2005 2.0L / 122 / L4
Ford Escort Base 1983 1.6L / 98 / L4
Ford Escort Base 1984 1.6L / 98 / L4
Ford Escort Base 1985 1.6L / 98 / L4
1.9L / 116 / L4
Ford Escort Base 1990 1.9L / 116 / L4
Ford Escort Base 1995 1.9L / 116 / L4
Ford Escort Base 1996 1.9L / 116 / L4
Ford Escort GLX 1983 1.6L / 98 / L4
Ford Escort GL 1983 1.6L / 98 / L4
Ford Escort GL 1984 1.6L / 98 / L4
Ford Escort GL 1985 1.9L / 116 / L4
1.6L / 98 / L4
Ford Escort GL 1986 1.9L / 116 / L4
Ford Escort GL 1987 1.9L / 116 / L4
Ford Escort GL 1988 1.9L / 116 / L4
Ford Escort GT Turbo 1984 1.6L / 98 / L4
Ford Escort GT Turbo 1985 1.6L / 98 / L4
Ford Escort GT 1983 1.6L / 98 / L4
Ford Escort GT 1984 1.6L / 98 / L4
Ford Escort GT 1985 1.6L / 98 / L4
Ford Escort GT 1986 1.9L / 116 / L4
Ford Escort GT 1987 1.9L / 116 / L4
Ford Escort GT 1988 1.9L / 116 / L4
Ford Escort GT 1989 1.9L / 116 / L4
Ford Escort GT 1990 1.9L / 116 / L4
Ford Escort LX Sport 1990 1.9L / 116 / L4
Ford Escort LX Sport 1995 1.9L / 116 / L4
Ford Escort LX 1983 1.6L / 98 / L4
Ford Escort LX 1984 1.6L / 98 / L4
Ford Escort LX 1985 1.6L / 98 / L4
Ford Escort LX 1986 1.9L / 116 / L4
Ford Escort LX 1988 1.9L / 116 / L4
Ford Escort LX 1989 1.9L / 116 / L4
Ford Escort LX 1990 1.9L / 116 / L4
Ford Escort LX 1995 1.9L / 116 / L4
Ford Escort LX 1996 1.9L / 116 / L4
Ford Escort L 1985 1.6L / 98 / L4
1.9L / 116 / L4
Ford Escort L 1986 1.9L / 116 / L4
Ford Escort Pony 1986 1.9L / 116 / L4
Ford Escort Pony 1987 1.9L / 116 / L4
Ford Escort Pony 1988 1.9L / 116 / L4
Ford Escort Pony 1989 1.9L / 116 / L4
Ford Escort Pony 1990 1.9L / 116 / L4
Ford Escort Sport 1996 1.9L / 116 / L4
Ford Probe Base 1991 2.2L / 133 / L4
Ford Probe Base 1992 2.2L / 133 / L4
Ford Probe Base 1993 2.0L / 122 / L4
Ford Probe Base 1994 2.0L / 122 / L4
Ford Probe Base 1995 2.0L / 122 / L4
Ford Probe Base 1996 2.0L / 122 / L4
Ford Probe GL 1989 2.2L / 133 / L4
Ford Probe GL 1990 2.2L / 133 / L4
Ford Probe GL 1991 2.2L / 133 / L4
Ford Probe GL 1992 2.2L / 133 / L4
Ford Probe GT 1989 2.2L / 133 / L4
Ford Probe GT 1990 2.2L / 133 / L4
Ford Probe GT 1991 2.2L / 133 / L4
Ford Probe GT 1992 2.2L / 133 / L4
Ford Probe LX 1989 2.2L / 133 / L4
Ford Probe SE 1993 2.0L / 122 / L4
Ford Probe SE 1994 2.0L / 122 / L4
Ford Probe SE 1995 2.0L / 122 / L4
Ford Probe SE 1996 2.0L / 122 / L4
Ford Thunderbird Base 1989 3.8L / 232 / V6
Ford Thunderbird Base 1990 3.8L / 232 / V6
Ford Thunderbird Base 1991 3.8L / 232 / V6
5.0L / 302 / V8
Ford Thunderbird Base 1992 3.8L / 232 / V6
5.0L / 302 / V8
Ford Thunderbird Base 2002 3.9L / 242 / V8
Ford Thunderbird Base 2003 3.9L / 242 / V8
Ford Thunderbird Base 2004 3.9L / 242 / V8
Ford Thunderbird LX 1989 3.8L / 232 / V6
Ford Thunderbird LX 1990 3.8L / 232 / V6
Ford Thunderbird LX 1991 5.0L / 302 / V8
3.8L / 232 / V6
Ford Thunderbird LX 1992 5.0L / 302 / V8
3.8L / 232 / V6
Ford Thunderbird LX 1993 5.0L / 302 / V8
3.8L / 232 / V6
Ford Thunderbird LX 1994 4.6L / 281 / V8
3.8L / 232 / V6
Ford Thunderbird LX 1995 4.6L / 281 / V8
3.8L / 232 / V6
Ford Thunderbird LX 1996 4.6L / 281 / V8
3.8L / 232 / V6
Ford Thunderbird LX 1997 4.6L / 281 / V8
3.8L / 232 / V6
Ford Thunderbird Pacific Coast Roadster 2004 3.9L / 242 / V8
Ford Thunderbird Super Coupe 1989 3.8L / 232 / V6
Ford Thunderbird Super Coupe 1990 3.8L / 232 / V6
Ford Thunderbird Super Coupe 1991 3.8L / 232 / V6
Ford Thunderbird Super Coupe 1992 3.8L / 232 / V6
Ford Thunderbird Super Coupe 1993 3.8L / 232 / V6
Ford Thunderbird Super Coupe 1994 3.8L / 232 / V6
Ford Thunderbird Super Coupe 1995 3.8L / 232 / 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
Inlet Position Center
Material Aluminized Steel
Mount Type Uses New Hangers (Not Included)
Muffler Series 40 Series Delta Flow
Muffler Type Chambered
Outlet Connection Type Pipe Connection
Outlet Diameter (in) 2
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 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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