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  See more parts for Buick Skylark
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Flowmaster 40 Series Muffler - 2.25 Offset In / 2.25 Offset Out - Aggressive Sound - 42443
Flowmaster 40 Series Muffler - 2.25 Offset In / 2.25 Offset Out - Aggressive Sound - 42443 - Image 2 Flowmaster 40 Series Muffler - 2.25 Offset In / 2.25 Offset Out - Aggressive Sound - 42443 - Image 3 Flowmaster 40 Series Muffler - 2.25 Offset In / 2.25 Offset Out - Aggressive Sound - 42443 - Image 4 Flowmaster 40 Series Muffler - 2.25 Offset In / 2.25 Offset Out - Aggressive Sound - 42443 - Image 5 Flowmaster 40 Series Muffler - 2.25 Offset In / 2.25 Offset Out - Aggressive Sound - 42443 - Image 6

The Original 40 Series Muffler is your go-to choice if you're after that classic Flowmaster sound. With its bold exterior and interior tone, this muffler really makes a statement. Crafted from 16-gauge aluminized steel and fully MIG welded, it’s built to last and handle whatever you throw at it.

Features:

  • Durable, fully welded 16-gauge aluminized steel
  • Aggressive sound for an exterior exhaust tone
  • Noticeable interior resonance that enhances your driving experience
  • Perfect for street/strip and off-road applications

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
  • 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: 40 Series
  • Muffler Type: Reflection
  • Outlet Connection Type: Pipe Connection
  • Outlet Diameter (in): 2.25
  • Outlet Position: Offset
  • Overall Length (in): 19
  • Product Type: Street Mufflers
  • Shape: Oval
  • Sound Level: Aggressive Sound
  • Type of Muffler: Chambered

Notes:

  • This is a universal muffler and not a direct fit; some adaptation may be required.
Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle Make/Model
Buick Skylark 1975-1977 Base
Buick Skylark 1975-1977 SR
Buick Skylark 1976-1977 S
Chevrolet C10 1975-1981 Cheyenne
Chevrolet C10 1975-1986 Scottsdale
Chevrolet C10 1975-1980 Custom Deluxe
Chevrolet C10 1975-1986 Silverado
Chevrolet C10 1975-1986 Custom
Chevrolet C10 1978-1980 Big Ten
Chevrolet C10 1981 Deluxe
Chevrolet C10 Pickup 1973-1974 Base
Chevrolet C10 Suburban 1973-1974 Base
Chevrolet C10 Suburban 1975-1980, 1982-1986 Silverado
Chevrolet C10 Suburban 1975-1980 Custom Deluxe
Chevrolet C10 Suburban 1975-1980, 1982, 1984-1986 Scottsdale
Chevrolet C10 Suburban 1981-1986 Custom
Chevrolet C10 Suburban 1981 Deluxe
Chevrolet C20 Suburban 1973-1974 Base
Chevrolet C20 Suburban 1975-1980 Custom Deluxe
Chevrolet C20 Suburban 1975-1977, 1979-1980, 1982-1986 Silverado
Chevrolet C20 Suburban 1975-1980, 1982, 1984-1986 Scottsdale
Chevrolet C20 Suburban 1981-1986 Custom
Chevrolet C20 Suburban 1981 Deluxe
Chevrolet Camaro 1967-1972, 2010-2013 SS
Chevrolet Camaro 1967-1980 Base
Chevrolet Camaro 1967-1974, 1977-1981 Z28
Chevrolet Camaro 1967-1973, 1975 RS
Chevrolet Camaro 1973-1978, 2010-2013 LT
Chevrolet Camaro 1976-1978 LT Rally Sport
Chevrolet Camaro 1976-1980 Rally Sport
Chevrolet Camaro 1979-1981 Berlinetta
Chevrolet Camaro 1981 Sport
Chevrolet Camaro 2010-2013 LS
Chevrolet Camaro 2011-2012 1LT
Chevrolet Camaro 2011-2012 2SS
Chevrolet Camaro 2011-2012 1SS
Chevrolet Caprice 1966-1972 Base
Chevrolet Caprice 1973, 1994-1996 Classic
Chevrolet Caprice 1973 Estate
Chevrolet Caprice 1994 Classic LS
Chevrolet Impala 1994-1996 SS
Chevrolet K10 Pickup 1973-1974 Base
Chevrolet K10 Suburban 1973-1974 Base
Chevrolet K10 Suburban 1975-1980, 1982, 1984-1986 Scottsdale
Chevrolet K10 Suburban 1975-1980 Custom Deluxe
Chevrolet K10 Suburban 1975-1977, 1979-1980, 1982-1983, 1985-1986 Silverado
Chevrolet K10 Suburban 1981 Deluxe
Chevrolet K10 Suburban 1981-1986 Custom
Chevrolet K20 Suburban 1973-1974 Base
Chevrolet K20 Suburban 1975-1977, 1979-1980, 1982-1983, 1985-1986 Silverado
Chevrolet K20 Suburban 1975-1980, 1982, 1984-1986 Scottsdale
Chevrolet K20 Suburban 1975-1980 Custom Deluxe
Chevrolet K20 Suburban 1981-1986 Custom
Chevrolet K20 Suburban 1981 Deluxe
Chevrolet K5 Blazer 1976 Base
Chevrolet K5 Blazer 1976-1978 Cheyenne
Chevrolet K5 Blazer 1977-1978 Custom Deluxe
Chevrolet K5 Blazer 1978 Silverado
Chrysler 300 2005-2013 Base
Chrysler 300 2005-2010 C SRT8
Chrysler 300 2005-2011, 2013 Touring
Chrysler 300 2005-2013 C
Chrysler 300 2005-2012 Limited
Chrysler 300 2006 C Heritage
Chrysler 300 2007-2010, 2012-2013 C Lujo
Chrysler 300 2007 C Heritage Edition II
Chrysler 300 2008-2009 LX
Chrysler 300 2009 Signature Series
Chrysler 300 2010, 2012-2013 S
Chrysler 300 2012-2013 C Luxury
Chrysler 300 2012-2013 SRT8
Chrysler 300 2013 SRT8 Core
Dodge Challenger 2009-2014 SXT
Dodge Challenger 2009-2011 SE
Dodge Challenger 2009-2014 SRT8
Dodge Challenger 2009-2010, 2014 Base
Dodge Challenger 2009-2014 R/T
Dodge Challenger 2011-2012, 2014 SRT
Dodge Challenger 2011-2013 SXT Plus
Dodge Challenger 2012-2014 R/T Classic
Dodge Challenger 2013-2014 Rallye Redline
Dodge Charger 2006-2010 SE
Dodge Charger 2006-2007 Base
Dodge Charger 2006-2010 SRT8
Dodge Charger 2006 Daytona R/T
Dodge Charger 2006-2010 Pursuit
Dodge Charger 2006-2010 SXT
Dodge Charger 2006-2010 R/T
Dodge Charger 2007-2008 SRT8 Super Bee
Dodge Magnum 2005-2008 SXT
Dodge Magnum 2005-2008 SE
Dodge Magnum 2005 SXT Special Edition
Dodge Magnum 2005-2008 R/T
Dodge Magnum 2006-2008 SRT8
Dodge Magnum 2006-2007 Base
Ford Bronco 1987-1996 Eddie Bauer
Ford Bronco 1987-1993 Custom
Ford Bronco 1987-1992, 1994-1996 XLT
Ford Bronco 1990-1996 XL
Ford Bronco 1992 XLT Nite
Ford Bronco 1993 XLT Lariat
Ford Bronco 1995-1996 XLT Sport
Ford Bronco II 1987-1990 XLT
Ford Bronco II 1987-1990 Eddie Bauer
Ford Bronco II 1987-1990 XL
Ford Bronco II 1988-1990 XL Sport
Ford Bronco II 1989-1990 XLT Plus
Ford Mustang 1986 SVO
Ford Mustang 1986-2008 GT
Ford Mustang 1986-1993 LX
Ford Mustang 1993, 1995 SVT Cobra R
Ford Mustang 1993-1999, 2001, 2003-2004 SVT Cobra
Ford Mustang 1995 GTS
Ford Mustang 1995, 2001, 2005-2013 Base
Ford Mustang 2001 Equipado
Ford Mustang 2001 GT Bullitt
Ford Mustang 2003 SVT Cobra 10th Anniversary
Ford Mustang 2004 GT Base
Ford Mustang 2004 GT Equipado
Ford Mustang 2007-2008 Shelby GT
Ford Mustang 2007-2009 Lujo
Ford Mustang 2008 Shelby GT500
Ford Mustang 2008-2009 Bullitt
Ford Mustang 2009-2013 Shelby
Ford Mustang 2012 ST
GMC C15 1975-1978 High Sierra
GMC C15 1975-1978 Sierra Grande
GMC C15 1975-1978 Base
GMC C15 1975-1978 Sierra Classic
GMC C15 1977-1978 Heavy Half
GMC C15 1977 Indy Hauler
GMC C15 1978 Street Coupe
GMC C15 Suburban 1975-1978 Base
GMC C15 Suburban 1975-1978 High Sierra
GMC C15 Suburban 1975-1978 Sierra Grande
GMC C15 Suburban 1975-1978 Sierra Classic
GMC C1500 1979-1986 Sierra Classic
GMC C1500 1979-1986 Base
GMC C1500 1979-1982 Sierra Grande
GMC C1500 1979-1982 Street Coupe
GMC C1500 1979-1980 Heavy Half
GMC C1500 1979-1986 High Sierra
GMC C1500 Suburban 1979-1986 Base
GMC C1500 Suburban 1979-1982 Sierra Grande
GMC C1500 Suburban 1979-1986 Sierra Classic
GMC C1500 Suburban 1979-1986 High Sierra
GMC Jimmy 1976-1978 Sierra Classic
GMC Jimmy 1976-1978 Base
GMC Jimmy 1976-1978 High Sierra
GMC Jimmy 1976-1978 Sierra Grande
GMC Jimmy 1978 Street Coupe
GMC K15 1975-1978 Sierra Grande
GMC K15 1975-1978 High Sierra
GMC K15 1975-1978 Sierra Classic
GMC K15 1975-1978 Base
GMC K15 1977 Indy Hauler
GMC K15 Suburban 1975-1978 Sierra Grande
GMC K15 Suburban 1975-1978 Base
GMC K15 Suburban 1975-1978 Sierra Classic
GMC K15 Suburban 1975-1978 High Sierra
GMC K1500 1979-1986 High Sierra
GMC K1500 1979-1986 Base
GMC K1500 1979-1982 Sierra Grande
GMC K1500 1979-1986 Sierra Classic
GMC K1500 Suburban 1979-1986 Sierra Classic
GMC K1500 Suburban 1979-1986 Base
GMC K1500 Suburban 1979-1986 High Sierra
GMC K1500 Suburban 1979-1982 Sierra Grande
Oldsmobile Cutlass 1980 Base
Oldsmobile Cutlass 1980-1981 Brougham
Oldsmobile Cutlass 1980-1981 LS
Oldsmobile Cutlass 1981 Supreme
Oldsmobile Cutlass Calais 1978-1984 Base
Oldsmobile Cutlass Calais 1983-1984 Hurst
Oldsmobile Cutlass Cruiser 1980-1981 Brougham
Oldsmobile Cutlass Cruiser 1980-1983 Base
Oldsmobile Cutlass Salon 1978-1979, 1985-1986 442
Oldsmobile Cutlass Salon 1978-1980 Brougham
Oldsmobile Cutlass Salon 1978-1980, 1985-1987 Base
Oldsmobile Cutlass Salon 1979 Hurst
Oldsmobile Cutlass Supreme 1978-1987 Brougham
Oldsmobile Cutlass Supreme 1978-1988 Base
Oldsmobile Cutlass Supreme 1981, 1985 LS
Oldsmobile Cutlass Supreme 1987 442
Oldsmobile Cutlass Supreme 1988 Classic
Oldsmobile Cutlass Supreme 1988 Indy 500 Pace Car
Oldsmobile Cutlass Supreme 1988 Classic Brougham
Oldsmobile Cutlass Supreme 1988 International
Oldsmobile Cutlass Supreme 1988 SL
Pontiac Firebird 1967-1969 400
Pontiac Firebird 1967-1969 Sprint
Pontiac Firebird 1967-1981, 1993-2002 Base
Pontiac Firebird 1967 326
Pontiac Firebird 1967-1968 HO
Pontiac Firebird 1968-1969 350
Pontiac Firebird 1969 350 HO
Pontiac Firebird 1969-1981, 1993-2002 Trans Am
Pontiac Firebird 1970-1981, 1993-2002 Formula
Pontiac Firebird 1970-1981 Esprit
Pontiac Firebird 1994 Trans Am GT

Flowmaster Banner

Who is Flowmaster?

Flowmaster is an aftermarket company that was founded in 1983. The company specializes in manufacturing high-performance exhaust systems for various vehicles. This includes classic muscle cars, modern sedans, trucks, jeeps, off-road vehicles, and more. 

It has since revolutionized the industry and has continued its tradition to produce high-quality exhaust parts. Today, Flowmaster has been the go-to brand of many car builders and enthusiasts worldwide and has been the market leader for years.

Pushing the Boundaries of Exhaust Design

Flowmaster has been the pioneer when it comes to developing mufflers. They produce mufflers that are quiet enough to be used legally on the streets but, at the same time, does not restrict the performance of the engine. This is why more and more people are choosing Flowmaster for their car builds as they can enjoy their vehicles on and off the streets.

An Exhaust For Any Style

The company provides its customers with the ability to choose the type of muffler they want. They offer five sound categories of their exhaust system, from quiet and discrete to something more aggressive and gives that racy sound. They can also choose between 12 designs of chambered mufflers, including their exclusively-designed “laminar-flow” muffler or “straight-through.”They also have a custom-built exhaust system for that one-of car builds.

Passionate Development Team

Flowmaster is composed of people who have years of experience in developing quality exhaust systems. Using the knowledge they acquired over the years, they improved their designs and matched it with the ever-growing technological advancement of vehicles today. 

Tried and Tested

With hundreds of installs under its belt, Flowmaster has proven itself to be a brand that delivers what it promised. In addition, all their exhaust systems are designed and dyno-tested, ensuring that they can maximize your vehicle’s performance once installed. 

Purchase Flowmaster at Vivid Racing

If you are in the market for an upgrade in your vehicle’s exhaust that would provide you with that distinct sound and improved performance, then Flowmaster is the brand for you. To know more about Flowmaster, visit Vivid Racing and check out their list of products that fit your requirement.




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