Flowmaster 43043 40 Series Muffler – Aggressive Sound, 3 Inch In/Out, Universal Fit for Pontiac Firebird

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. 40 Series - 3.00 Offset In / 3.00 Offset Out - Aggressive Sound Universal Muffler - Some adaptation may be required.

• Excellent Street/Strip and Off Road application
• Durable fully welded 16 gauge aluminized steel
• Aggressive Sound Exterior Exhaust Tone
• Noticeable interior resonance

Experience the distinctive and aggressive tone of the Flowmaster 43043 40 Series Muffler, designed to deliver that classic Flowmaster sound both inside and outside your vehicle. Crafted from durable 16-gauge aluminized steel and fully MIG welded, this muffler offers maximum longevity and resilience for street, strip, and off-road applications. Its universal design features a 3.00-inch offset inlet and outlet, allowing some adaptation to fit a variety of vehicles, making it a versatile upgrade for your Pontiac Firebird from 1975 to 1981. The 40 Series muffler is known for its deep, aggressive exterior exhaust tone that enhances the auditory experience without overwhelming the senses. Inside the vehicle, you’ll notice a noticeable resonance that complements the exterior sound, giving your Firebird a powerful presence on the road or track. Whether you're seeking improved exhaust sound or a performance upgrade, this muffler provides a balanced combination of durability and performance. Its construction ensures it withstands harsh conditions, offering reliable performance over time. Easy to install with some adaptation, the Flowmaster 43043 is an excellent choice for enthusiasts aiming to achieve that iconic muscle car sound while maintaining the durability and quality expected from Flowmaster products.

Features:

• Aggressive exterior exhaust tone for a commanding sound

• Constructed of fully MIG welded 16-gauge aluminized steel for durability

• Universal fitting with 3.00-inch offset inlet and outlet, adaptable for various applications

• Suitable for street, strip, and off-road use

• Noticeable interior resonance enhances driving experience

Fitments:
1967 Chevrolet Camaro RS
1967 Chevrolet Camaro SS
1967 Pontiac Firebird 326
1967 Pontiac Firebird 400
1967 Pontiac Firebird Base
1967 Pontiac Firebird HO
1967 Pontiac Firebird Sprint
1968 Chevrolet Camaro SS
1968 Pontiac Firebird 350
1968 Pontiac Firebird 400
1968 Pontiac Firebird Base
1968 Pontiac Firebird HO
1968 Pontiac Firebird Sprint
1969 Chevrolet Camaro Base
1969 Chevrolet Camaro RS
1969 Chevrolet Camaro SS
1969 Pontiac Firebird 350
1969 Pontiac Firebird 350 HO
1969 Pontiac Firebird 400
1969 Pontiac Firebird Base
1969 Pontiac Firebird Sprint
1969 Pontiac Firebird Trans Am
1970 Chevrolet Camaro Base
1970 Chevrolet Camaro RS
1970 Chevrolet Camaro SS
1970 Chevrolet Camaro Z28
1970 Pontiac Firebird Base
1970 Pontiac Firebird Esprit
1970 Pontiac Firebird Formula
1970 Pontiac Firebird Trans Am
1971 Chevrolet Camaro Base
1971 Chevrolet Camaro RS
1971 Chevrolet Camaro SS
1971 Chevrolet Camaro Z28
1971 Pontiac Firebird Base
1971 Pontiac Firebird Esprit
1971 Pontiac Firebird Formula
1971 Pontiac Firebird Trans Am
1972 Chevrolet Camaro Base
1972 Chevrolet Camaro RS
1972 Chevrolet Camaro SS
1972 Chevrolet Camaro Z28
1972 Pontiac Firebird Base
1972 Pontiac Firebird Esprit
1972 Pontiac Firebird Formula
1972 Pontiac Firebird Trans Am
1973 Chevrolet Camaro Base
1973 Chevrolet Camaro LT
1973 Chevrolet Camaro RS
1973 Chevrolet Camaro Z28
1973 Pontiac Firebird Base
1973 Pontiac Firebird Esprit
1973 Pontiac Firebird Formula
1973 Pontiac Firebird Trans Am
1974 Chevrolet Camaro Base
1974 Chevrolet Camaro LT
1974 Chevrolet Camaro Z28
1974 Pontiac Firebird Base
1974 Pontiac Firebird Esprit
1974 Pontiac Firebird Formula
1974 Pontiac Firebird Trans Am
1975 Chevrolet Camaro Base
1975 Chevrolet Camaro LT
1975 Chevrolet Camaro RS
1975 Pontiac Firebird Base
1975 Pontiac Firebird Esprit
1975 Pontiac Firebird Formula
1975 Pontiac Firebird Trans Am
1976 Chevrolet Camaro Base
1976 Chevrolet Camaro LT
1976 Chevrolet Camaro LT Rally Sport
1976 Chevrolet Camaro Rally Sport
1976 Pontiac Firebird Base
1976 Pontiac Firebird Esprit
1976 Pontiac Firebird Formula
1976 Pontiac Firebird Trans Am
1977 Chevrolet Camaro Base
1977 Chevrolet Camaro LT
1977 Chevrolet Camaro LT Rally Sport
1977 Chevrolet Camaro Rally Sport
1977 Chevrolet Camaro Z28
1977 Pontiac Firebird Base
1977 Pontiac Firebird Esprit
1977 Pontiac Firebird Formula
1977 Pontiac Firebird Trans Am
1978 Chevrolet Camaro Base
1978 Chevrolet Camaro LT
1978 Chevrolet Camaro LT Rally Sport
1978 Chevrolet Camaro Rally Sport
1978 Chevrolet Camaro Z28
1978 Pontiac Firebird Base
1978 Pontiac Firebird Esprit
1978 Pontiac Firebird Formula
1978 Pontiac Firebird Trans Am
1979 Chevrolet Camaro Base
1979 Chevrolet Camaro Berlinetta
1979 Chevrolet Camaro Rally Sport
1979 Chevrolet Camaro Z28
1979 Pontiac Firebird Base
1979 Pontiac Firebird Esprit
1979 Pontiac Firebird Formula
1979 Pontiac Firebird Trans Am
1980 Chevrolet Camaro Base
1980 Chevrolet Camaro Berlinetta
1980 Chevrolet Camaro Rally Sport
1980 Chevrolet Camaro Z28
1980 Pontiac Firebird Base
1980 Pontiac Firebird Esprit
1980 Pontiac Firebird Formula
1980 Pontiac Firebird Trans Am
1981 Chevrolet Camaro Berlinetta
1981 Chevrolet Camaro Sport
1981 Chevrolet Camaro Z28
1981 Pontiac Firebird Base
1981 Pontiac Firebird Esprit
1981 Pontiac Firebird Formula
1981 Pontiac Firebird Trans Am
1991 Chevrolet C1500 454 SS
1991 Chevrolet C1500 Cheyenne
1991 Chevrolet C1500 Silverado
1991 Chevrolet C1500 WT
1991 Chevrolet C2500 Cheyenne
1991 Chevrolet C2500 Silverado
1991 Chevrolet K2500 Cheyenne
1991 Chevrolet K2500 Silverado
1991 GMC C2500 Sierra
1991 GMC C2500 Sierra SLE
1991 GMC C2500 Sierra SLX
1991 GMC K2500 Sierra
1991 GMC K2500 Sierra SLE
1991 GMC K2500 Sierra SLX
1992 Chevrolet Blazer Cheyenne
1992 Chevrolet Blazer Silverado
1992 Chevrolet C1500 454 SS
1992 Chevrolet C1500 Cheyenne
1992 Chevrolet C1500 Silverado
1992 Chevrolet C1500 WT
1992 Chevrolet C2500 Cheyenne
1992 Chevrolet C2500 Silverado
1992 Chevrolet K2500 Cheyenne
1992 Chevrolet K2500 Silverado
1992 GMC C2500 Sierra
1992 GMC C2500 Sierra SLE
1992 GMC C2500 Sierra SLX
1992 GMC K2500 Sierra
1992 GMC K2500 Sierra SLE
1992 GMC K2500 Sierra SLX
1993 Chevrolet Blazer Cheyenne
1993 Chevrolet Blazer Silverado
1993 Chevrolet C1500 454 SS
1993 Chevrolet C2500 Cheyenne
1993 Chevrolet C2500 Silverado
1993 Chevrolet K2500 Cheyenne
1993 Chevrolet K2500 Silverado
1993 GMC C2500 Sierra
1993 GMC C2500 Sierra SLE
1993 GMC C2500 Sierra SLX
1993 GMC K2500 Sierra
1993 GMC K2500 Sierra SLE
1993 GMC K2500 Sierra SLX
1994 Chevrolet Blazer Base
1994 Chevrolet Blazer Silverado
1994 Chevrolet Blazer Silverado Sport
1994 Chevrolet C1500 Base
1994 Chevrolet C1500 Cheyenne
1994 Chevrolet C1500 Silverado
1994 Chevrolet C1500 WT
1994 Chevrolet C2500 Base
1994 Chevrolet C2500 Cheyenne
1994 Chevrolet C2500 Silverado
1994 Chevrolet C2500 WT
1994 Chevrolet K1500 Base
1994 Chevrolet K1500 Cheyenne
1994 Chevrolet K1500 Silverado
1994 Chevrolet K1500 WT
1994 Chevrolet K2500 Base
1994 Chevrolet K2500 Cheyenne
1994 Chevrolet K2500 Silverado
1994 Chevrolet K2500 WT
1994 GMC C1500 Sierra SL
1994 GMC C1500 Sierra SLE
1994 GMC C1500 Sierra SLT
1994 GMC C1500 Sierra Special
1994 GMC C2500 Sierra SL
1994 GMC C2500 Sierra SLE
1994 GMC C2500 Sierra SLT
1994 GMC K1500 Sierra SL
1994 GMC K1500 Sierra SLE
1994 GMC K1500 Sierra SLT
1994 GMC K1500 Sierra Special
1994 GMC K2500 Sierra SL
1994 GMC K2500 Sierra SLE
1994 GMC K2500 Sierra SLT
1995 Chevrolet C1500 Base
1995 Chevrolet C1500 Cheyenne
1995 Chevrolet C1500 Silverado
1995 Chevrolet C1500 WT
1995 Chevrolet C2500 Base
1995 Chevrolet C2500 Cheyenne
1995 Chevrolet C2500 Silverado
1995 Chevrolet C2500 WT
1995 Chevrolet K1500 Base
1995 Chevrolet K1500 Cheyenne
1995 Chevrolet K1500 Silverado
1995 Chevrolet K1500 WT
1995 Chevrolet K2500 Base
1995 Chevrolet K2500 Cheyenne
1995 Chevrolet K2500 Silverado
1995 Chevrolet K2500 WT
1995 Chevrolet Tahoe Base
1995 Chevrolet Tahoe LS
1995 Chevrolet Tahoe LT
1995 GMC C1500 Sierra SL
1995 GMC C1500 Sierra SLE
1995 GMC C1500 Sierra SLT
1995 GMC C1500 Sierra Special
1995 GMC C2500 Sierra SL
1995 GMC C2500 Sierra SLE
1995 GMC C2500 Sierra SLT
1995 GMC K1500 Sierra SL
1995 GMC K1500 Sierra SLE
1995 GMC K1500 Sierra SLS
1995 GMC K1500 Sierra SLT
1995 GMC K1500 Sierra Special
1995 GMC K2500 Sierra SL
1995 GMC K2500 Sierra SLE
1995 GMC K2500 Sierra SLT
1995 GMC Yukon Base
1995 GMC Yukon SLE
1995 GMC Yukon SLT
1996 Chevrolet C1500 Base
1996 Chevrolet C1500 Cheyenne
1996 Chevrolet C1500 Silverado
1996 Chevrolet C1500 WT
1996 Chevrolet C2500 Base
1996 Chevrolet C2500 Cheyenne
1996 Chevrolet C2500 Silverado
1996 Chevrolet K1500 Base
1996 Chevrolet K1500 Cheyenne
1996 Chevrolet K1500 Silverado
1996 Chevrolet K1500 WT
1996 Chevrolet K2500 Base
1996 Chevrolet K2500 Cheyenne
1996 Chevrolet K2500 Silverado
1996 GMC C1500 Sierra SL
1996 GMC C1500 Sierra SLE
1996 GMC C1500 Sierra SLT
1996 GMC C1500 Sierra Special
1996 GMC C2500 Sierra SL
1996 GMC C2500 Sierra SLE
1996 GMC C2500 Sierra SLT
1996 GMC K1500 Sierra SL
1996 GMC K1500 Sierra SLE
1996 GMC K1500 Sierra SLT
1996 GMC K1500 Sierra Special
1996 GMC K2500 Sierra SL
1996 GMC K2500 Sierra SLE
1996 GMC K2500 Sierra SLT
1997 Chevrolet C1500 Base
1997 Chevrolet C1500 Cheyenne
1997 Chevrolet C1500 Silverado
1997 Chevrolet C1500 WT
1997 Chevrolet C2500 Base
1997 Chevrolet C2500 Cheyenne
1997 Chevrolet C2500 Silverado
1997 Chevrolet K1500 Base
1997 Chevrolet K1500 Cheyenne
1997 Chevrolet K1500 Silverado
1997 Chevrolet K1500 WT
1997 Chevrolet K2500 Base
1997 Chevrolet K2500 Cheyenne
1997 Chevrolet K2500 Silverado
1997 GMC C1500 Sierra GT
1997 GMC C1500 Sierra SL
1997 GMC C1500 Sierra SLE
1997 GMC C1500 Sierra SLT
1997 GMC C1500 Sierra Special
1997 GMC C2500 Sierra SL
1997 GMC C2500 Sierra SLE
1997 GMC C2500 Sierra SLT
1997 GMC K1500 Sierra SL
1997 GMC K1500 Sierra SLE
1997 GMC K1500 Sierra SLT
1997 GMC K1500 Sierra Special
1997 GMC K2500 Sierra SL
1997 GMC K2500 Sierra SLE
1997 GMC K2500 Sierra SLT
1998 Chevrolet C1500 Cheyenne
1998 Chevrolet C1500 Silverado
1998 Chevrolet C1500 WT
1998 Chevrolet C2500 Cheyenne
1998 Chevrolet C2500 Silverado
1998 Chevrolet C2500 WT
1998 Chevrolet K1500 Cheyenne
1998 Chevrolet K1500 Silverado
1998 Chevrolet K1500 WT
1998 Chevrolet K2500 Cheyenne
1998 Chevrolet K2500 Silverado
1998 Chevrolet K2500 WT
1998 Chevrolet Tahoe Base
1998 Chevrolet Tahoe LS
1998 Chevrolet Tahoe LT
1998 GMC C1500 Sierra SL
1998 GMC C1500 Sierra SLE
1998 GMC C1500 Sierra SLT
1998 GMC C1500 Sierra Special
1998 GMC C2500 Sierra SL
1998 GMC C2500 Sierra SLE
1998 GMC C2500 Sierra SLT
1998 GMC K1500 Sierra SL
1998 GMC K1500 Sierra SLE
1998 GMC K1500 Sierra SLT
1998 GMC K1500 Sierra Special
1998 GMC K2500 Sierra SL
1998 GMC K2500 Sierra SLE
1998 GMC K2500 Sierra SLT
1998 GMC Yukon SLE
1998 GMC Yukon SLT
1999 Chevrolet C1500 LS
1999 Chevrolet K1500 LS
1999 Chevrolet Tahoe Base
1999 Chevrolet Tahoe LS
1999 Chevrolet Tahoe LT
1999 GMC C1500 Sierra SL
1999 GMC C1500 Sierra SLE
1999 GMC C1500 Sierra SLT
1999 GMC K1500 Sierra SL
1999 GMC K1500 Sierra SLE
1999 GMC K1500 Sierra SLT
1999 GMC Yukon SLE
1999 GMC Yukon SLT
2000 Ford Excursion Limited
2000 Ford Excursion XLT
2001 Ford Excursion Limited
2001 Ford Excursion XLT
2002 Ford Excursion Limited
2002 Ford Excursion XLT
2003 Ford Excursion Eddie Bauer
2003 Ford Excursion Limited
2003 Ford Excursion XLT
2004 Dodge Durango Limited
2004 Dodge Durango SLT
2004 Dodge Durango ST
2004 Ford Excursion Eddie Bauer
2004 Ford Excursion Limited
2004 Ford Excursion XLS
2004 Ford Excursion XLT
2005 Chrysler 300 C SRT8
2005 Dodge Durango Limited
2005 Dodge Durango SLT
2005 Dodge Durango ST
2005 Dodge Durango SXT
2005 Ford Excursion Eddie Bauer
2005 Ford Excursion Limited
2005 Ford Excursion XLT
2005 Ford F-250 Super Duty Harley-Davidson Edition
2005 Ford F-250 Super Duty King Ranch
2005 Ford F-250 Super Duty Lariat
2005 Ford F-250 Super Duty XL
2005 Ford F-250 Super Duty XLT
2005 Ford F-350 Super Duty Harley-Davidson Edition
2005 Ford F-350 Super Duty King Ranch
2005 Ford F-350 Super Duty Lariat
2005 Ford F-350 Super Duty XL
2005 Ford F-350 Super Duty XLT
2006 Chrysler 300 C SRT8
2006 Dodge Charger SRT8
2006 Dodge Durango Adventurer
2006 Dodge Durango Limited
2006 Dodge Durango SLT
2006 Dodge Durango SXT
2006 Dodge Magnum SRT8
2006 Ford F-250 Super Duty King Ranch
2006 Ford F-250 Super Duty Lariat
2006 Ford F-250 Super Duty XL
2006 Ford F-250 Super Duty XLT
2006 Ford F-350 Super Duty King Ranch
2006 Ford F-350 Super Duty Lariat
2006 Ford F-350 Super Duty XL
2006 Ford F-350 Super Duty XLT
2007 Chrysler 300 C SRT8
2007 Chrysler Aspen Limited
2007 Dodge Charger SRT8
2007 Dodge Durango Adventurer
2007 Dodge Durango Limited
2007 Dodge Durango SLT
2007 Dodge Durango SXT
2007 Dodge Magnum SRT8
2007 Dodge Ram 1500 SLT
2007 Dodge Ram 1500 ST
2007 Dodge Ram 1500 TRX4
2007 Ford F-250 Super Duty King Ranch
2007 Ford F-250 Super Duty Lariat
2007 Ford F-250 Super Duty XL
2007 Ford F-250 Super Duty XLT
2007 Ford F-350 Super Duty King Ranch
2007 Ford F-350 Super Duty Lariat
2007 Ford F-350 Super Duty XL
2007 Ford F-350 Super Duty XLT
2008 Chrysler 300 C SRT8
2008 Chrysler Aspen Limited
2008 Dodge Challenger SRT8
2008 Dodge Charger SRT8
2008 Dodge Durango Adventurer
2008 Dodge Durango Limited
2008 Dodge Durango SLT
2008 Dodge Durango SXT
2008 Dodge Magnum SRT8
2008 Dodge Ram 1500 SLT
2008 Dodge Ram 1500 ST
2008 Dodge Ram 1500 SXT
2009 Chrysler 300 C SRT8
2009 Chrysler Aspen Limited
2009 Dodge Challenger SRT8
2009 Dodge Charger SRT8
2009 Dodge Durango Limited
2009 Dodge Durango Limited Hybrid
2009 Dodge Durango SLT
2009 Dodge Ram 1500 SLT
2009 Dodge Ram 1500 ST
2009 Dodge Ram 1500 TRX
2009 Dodge Ram 1500 TRX4
2010 Chrysler 300 C SRT8
2010 Dodge Challenger SRT8
2010 Dodge Charger SRT8
2010 Dodge Ram 1500 SLT
2010 Dodge Ram 1500 ST
2010 Dodge Ram 1500 TRX
2010 Dodge Ram 1500 TRX4
2011 Dodge Challenger SRT8
2011 Ford Mustang GT
2012 Chrysler 300 SRT8
2012 Dodge Challenger SRT8
2012 Dodge Charger SRT8
2012 Ford Mustang Boss 302
2012 Ford Mustang GT
2013 Chrysler 300 SRT8
2013 Dodge Challenger SRT8
2013 Dodge Charger SRT8
2013 Ford Mustang Boss 302
2013 Ford Mustang GT
2014 Dodge Challenger SRT8
2014 Ford Mustang GT

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: false
Ltl Freight Required: false
Prop 65: N
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1