Flowmaster 8042543 40 Series Muffler 409S - 2.5" Offset In / Out

Flowmaster 8042543 40 Series Muffler 409S - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound

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 409S stainless steel and fully MIG welded for maximum durability.

Features:

• Durable fully welded 409 stainless steel
• Aggressive and powerful exterior exhaust tone
• Noticeable interior resonance
• Excellent Street/Strip and Off Road application
• Premium Flowmaster quality

Product Specification:

• Body Height (inches): 4.00
• Body Length (inches): 13.00
• Body Width (inches): 9.75
• Finish: Gray
• Inlet diameter (inches): 2.50
• Inlet position: Offset
• Material: Stainless Steel
• Muffler series: 40 Series
• Outlet diameter (inches): 2.50
• Outlet position: Offset
• Shape: Flowmaster® Case
• Sound level: Aggressive Sound

Fitments:

• 1973 Chevrolet Blazer Base V8, 5.0L
• 1973-1974 Chevrolet Blazer Base V8, 5.7L
• 1973 Chevrolet Blazer Base V8, 7.4L
• 1978-1980 Chevrolet C10 Big Ten V8, 5.0L
• 1978-1980 Chevrolet C10 Big Ten V8, 5.7L
• 1978-1980 Chevrolet C10 Big Ten V8, 7.4L
• 1978-1979 Chevrolet C10 Big Ten V8, 5.7L
• 1980 Chevrolet C10 Big Ten V8, 6.6L
• 1975-1980 Chevrolet C10 Cheyenne V8, 5.7L
• 1975-1980 Chevrolet C10 Cheyenne V8, 7.4L
• 1976-1980 Chevrolet C10 Cheyenne V8, 6.6L
• 1976-1980 Chevrolet C10 Cheyenne V8, 5.0L
• 1978-1980 Chevrolet C10 Cheyenne V8, 5.7L
• 1975-1980 Chevrolet C10 Custom Deluxe V8, 7.4L
• 1976-1980 Chevrolet C10 Custom Deluxe V8, 6.6L
• 1976-1980 Chevrolet C10 Custom Deluxe V8, 5.0L
• 1978-1980 Chevrolet C10 Custom Deluxe V8, 5.7L
• 1975-1980 Chevrolet C10 Custom Deluxe V8, 5.7L
• 1975-1980 Chevrolet C10 Scottsdale V8, 5.7L
• 1975-1980 Chevrolet C10 Scottsdale V8, 7.4L
• 1976-1980 Chevrolet C10 Scottsdale V8, 6.6L
• 1976-1980 Chevrolet C10 Scottsdale V8, 5.0L
• 1978-1980 Chevrolet C10 Scottsdale V8, 5.7L
• 1976-1980 Chevrolet C10 Silverado V8, 6.6L
• 1976-1980 Chevrolet C10 Silverado V8, 5.0L
• 1979-1980 Chevrolet C10 Silverado V8, 5.7L
• 1975-1980 Chevrolet C10 Silverado V8, 5.7L
• 1975-1980 Chevrolet C10 Silverado V8, 7.4L
• 1988-1993 Chevrolet C1500 Cheyenne V8, 5.0L
• 1988-1993 Chevrolet C1500 Cheyenne V6, 4.3L
• 1988-1990 Chevrolet C1500 Scottsdale V6, 4.3L
• 1988-1990 Chevrolet C1500 Scottsdale V8, 5.0L
• 1988-1993 Chevrolet C1500 Silverado V8, 5.0L
• 1988-1993 Chevrolet C1500 Silverado V6, 4.3L
• 1990-1993 Chevrolet C1500 WT V8, 5.0L
• 1990-1993 Chevrolet C1500 WT V6, 4.3L
• 1975-1980 Chevrolet C20 Cheyenne V8, 5.7L
• 1975-1980 Chevrolet C20 Cheyenne V8, 7.4L
• 1976-1980 Chevrolet C20 Cheyenne V8, 6.6L
• 1977-1980 Chevrolet C20 Cheyenne V8, 5.0L
• 1975-1980 Chevrolet C20 Custom Deluxe V8, 7.4L
• 1976-1980 Chevrolet C20 Custom Deluxe V8, 6.6L
• 1977-1980 Chevrolet C20 Custom Deluxe V8, 5.0L
• 1975-1980 Chevrolet C20 Custom Deluxe V8, 5.7L
• 1975-1980 Chevrolet C20 Scottsdale V8, 5.7L
• 1975-1980 Chevrolet C20 Scottsdale V8, 7.4L
• 1976-1980 Chevrolet C20 Scottsdale V8, 6.6L
• 1977-1980 Chevrolet C20 Scottsdale V8, 5.0L
• 1975-1980 Chevrolet C20 Silverado V8, 5.7L
• 1975-1980 Chevrolet C20 Silverado V8, 7.4L
• 1976-1980 Chevrolet C20 Silverado V8, 6.6L
• 1977-1980 Chevrolet C20 Silverado V8, 5.0L
• 1988-1993 Chevrolet C2500 Cheyenne V8, 5.0L
• 1988-1993 Chevrolet C2500 Cheyenne V6, 4.3L
• 1988-1990 Chevrolet C2500 Scottsdale V8, 5.0L
• 1988-1990 Chevrolet C2500 Scottsdale V6, 4.3L
• 1988-1993 Chevrolet C2500 Silverado V8, 5.0L
• 1988-1993 Chevrolet C2500 Silverado V6, 4.3L
• 1975-1980 Chevrolet C30 Cheyenne V8, 5.7L
• 1975-1980 Chevrolet C30 Cheyenne V8, 7.4L
• 1976-1979 Chevrolet C30 Cheyenne V8, 6.6L
• 1978-1979 Chevrolet C30 Cheyenne V8, 5.0L
• 1978 Chevrolet C30 Cheyenne V8, 5.7L
• 1975-1980 Chevrolet C30 Custom Deluxe V8, 5.7L
• 1975-1980 Chevrolet C30 Custom Deluxe V8, 7.4L
• 1976-1979 Chevrolet C30 Custom Deluxe V8, 6.6L
• 1978-1979 Chevrolet C30 Custom Deluxe V8, 5.0L
• 1978 Chevrolet C30 Custom Deluxe V8, 5.7L
• 1975-1980 Chevrolet C30 Scottsdale V8, 5.7L
• 1975-1980 Chevrolet C30 Scottsdale V8, 7.4L
• 1976-1979 Chevrolet C30 Scottsdale V8, 6.6L
• 1978-1979 Chevrolet C30 Scottsdale V8, 5.0L
• 1978 Chevrolet C30 Scottsdale V8, 5.7L
• 1975-1980 Chevrolet C30 Silverado V8, 5.7L
• 1975-1980 Chevrolet C30 Silverado V8, 7.4L
• 1976-1979 Chevrolet C30 Silverado V8, 6.6L
• 1979 Chevrolet C30 Silverado V8, 5.0L
• 2010-2013 Chevrolet Camaro SS V8, 6.2L
• 1968 Chevrolet Chevelle 300 V8, 6.5L
• 1968 Chevrolet Chevelle 300 V8, 5.0L
• 1968 Chevrolet Chevelle 300 V8, 5.4L
• 1968 Chevrolet Chevelle 300 Deluxe V8, 5.4L
• 1968-1969 Chevrolet Chevelle 300 Deluxe V8, 5.0L
• 1969 Chevrolet Chevelle 300 Deluxe V8, 5.7L
• 1968-1969 Chevrolet Chevelle 300 Deluxe V8, 6.5L
• 1964-1967 Chevrolet Chevelle Base V8, 5.4L
• 1968-1972 Chevrolet Chevelle Base V8, 5.0L
• 1964-1967 Chevrolet Chevelle Base V8, 4.6L
• 1967 Chevrolet Chevelle Base V8, 6.5L
• 1970-1972 Chevrolet Chevelle Base V8, 5.7L
• 1970 Chevrolet Chevelle Base V8, 6.6L
• 1970-1972 Chevrolet Chevelle Base V8, 6.6L
• 1971-1972 Chevrolet Chevelle Base V8, 7.4L
• 1968-1972 Chevrolet Chevelle Concours V8, 5.0L
• 1970 Chevrolet Chevelle Concours V8, 6.6L
• 1967-1969 Chevrolet Chevelle Concours V8, 6.5L
• 1972 Chevrolet Chevelle Concours V8, 6.6L
• 1969-1972 Chevrolet Chevelle Concours V8, 5.7L
• 1967 Chevrolet Chevelle Concours V8, 4.6L
• 1967-1968 Chevrolet Chevelle Concours V8, 5.4L
• 1969 Chevrolet Chevelle Concours Estate V8, 6.5L
• 1969-1972 Chevrolet Chevelle Concours Estate V8, 5.0L
• 1970-1972 Chevrolet Chevelle Concours Estate V8, 6.6L
• 1969-1972 Chevrolet Chevelle Concours Estate V8, 5.7L
• 1965-1967 Chevrolet Chevelle Deluxe V8, 5.4L
• 1965-1967 Chevrolet Chevelle Deluxe V8, 4.6L
• 1967 Chevrolet Chevelle Deluxe V8, 6.5L
• 1969-1972 Chevrolet Chevelle Greenbrier V8, 5.7L
• 1970 Chevrolet Chevelle Greenbrier V8, 6.6L
• 1969 Chevrolet Chevelle Greenbrier V8, 6.5L
• 1970-1972 Chevrolet Chevelle Greenbrier V8, 6.6L
• 1969-1972 Chevrolet Chevelle Greenbrier V8, 5.0L
• 1968-1970 Chevrolet Chevelle Malibu V8, 6.5L
• 1968-1972 Chevrolet Chevelle Malibu V8, 5.0L
• 1968 Chevrolet Chevelle Malibu V8, 5.4L
• 1970-1971 Chevrolet Chevelle Malibu V8, 6.6L
• 1969-1972 Chevrolet Chevelle Malibu V8, 5.7L
• 1970-1972 Chevrolet Chevelle Malibu V8, 7.4L
• 1970-1972 Chevrolet Chevelle Malibu V8, 6.6L
• 1971-1972 Chevrolet Chevelle Nomad V8, 7.4L
• 1968-1969 Chevrolet Chevelle Nomad V8, 6.5L
• 1968-1972 Chevrolet Chevelle Nomad V8, 5.0L
• 1969-1972 Chevrolet Chevelle Nomad V8, 5.7L
• 1968 Chevrolet Chevelle Nomad V8, 5.4L
• 1970 Chevrolet Chevelle Nomad V8, 6.6L
• 1970-1972 Chevrolet Chevelle Nomad V8, 6.6L
• 1971 Chevrolet Chevelle SS V8, 6.6L
• 1965-1970 Chevrolet Chevelle SS V8, 6.5L
• 1965 Chevrolet Chevelle SS V8, 5.4L
• 1965 Chevrolet Chevelle SS V8, 4.6L
• 1975-1980 Chevrolet K10 Cheyenne V8, 5.7L
• 1975-1980 Chevrolet K10 Cheyenne V8, 6.6L
• 1976-1980 Chevrolet K10 Cheyenne V8, 7.4L
• 1977-1979 Chevrolet K10 Cheyenne V8, 5.0L
• 1977-1979 Chevrolet K10 Custom Deluxe V8, 5.0L
• 1975-1980 Chevrolet K10 Custom Deluxe V8, 5.7L
• 1975-1980 Chevrolet K10 Custom Deluxe V8, 6.6L
• 1976-1980 Chevrolet K10 Custom Deluxe V8, 7.4L
• 1975-1980 Chevrolet K10 Scottsdale V8, 5.7L
• 1975-1980 Chevrolet K10 Scottsdale V8, 6.6L
• 1976-1980 Chevrolet K10 Scottsdale V8, 7.4L
• 1977-1979 Chevrolet K10 Scottsdale V8, 5.0L
• 1975-1980 Chevrolet K10 Silverado V8, 5.7L
• 1975-1980 Chevrolet K10 Silverado V8, 6.6L
• 1976-1980 Chevrolet K10 Silverado V8, 7.4L
• 1977-1979 Chevrolet K10 Silverado V8, 5.0L
• 1988-1993 Chevrolet K1500 Cheyenne V8, 5.0L
• 1988-1993 Chevrolet K1500 Cheyenne V6, 4.3L
• 1988-1990 Chevrolet K1500 Scottsdale V8, 5.0L
• 1988-1990 Chevrolet K1500 Scottsdale V6, 4.3L
• 1988-1993 Chevrolet K1500 Silverado V8, 5.0L
• 1988-1993 Chevrolet K1500 Silverado V6, 4.3L
• 1991 Chevrolet K1500 Sport V8, 5.0L
• 1991 Chevrolet K1500 Sport V6, 4.3L
• 1990-1993 Chevrolet K1500 WT V8, 5.0L
• 1990-1993 Chevrolet K1500 WT V6, 4.3L
• 1976-1980 Chevrolet K20 Cheyenne V8, 7.4L
• 1977-1980 Chevrolet K20 Cheyenne V8, 5.0L
• 1975-1980 Chevrolet K20 Cheyenne V8, 5.7L
• 1975-1980 Chevrolet K20 Cheyenne V8, 6.6L
• 1975-1980 Chevrolet K20 Custom Deluxe V8, 5.7L
• 1975-1980 Chevrolet K20 Custom Deluxe V8, 6.6L
• 1976-1980 Chevrolet K20 Custom Deluxe V8, 7.4L
• 1977-1980 Chevrolet K20 Custom Deluxe V8, 5.0L
• 1975-1980 Chevrolet K20 Scottsdale V8, 5.7L
• 1975-1980 Chevrolet K20 Scottsdale V8, 6.6L
• 1976-1980 Chevrolet K20 Scottsdale V8, 7.4L
• 1977-1980 Chevrolet K20 Scottsdale V8, 5.0L
• 1975-1980 Chevrolet K20 Silverado V8, 6.6L
• 1976-1980 Chevrolet K20 Silverado V8, 7.4L
• 1977-1980 Chevrolet K20 Silverado V8, 5.0L
• 1975-1980 Chevrolet K20 Silverado V8, 5.7L
• 1988-1993 Chevrolet K2500 Cheyenne V8, 5.0L
• 1988-1993 Chevrolet K2500 Cheyenne V6, 4.3L
• 1988-1990 Chevrolet K2500 Scottsdale V8, 5.0L
• 1988-1990 Chevrolet K2500 Scottsdale V6, 4.3L
• 1988-1993 Chevrolet K2500 Silverado V8, 5.0L
• 1988-1993 Chevrolet K2500 Silverado V6, 4.3L
• 1977-1980 Chevrolet K30 Cheyenne V8, 7.4L
• 1977-1980 Chevrolet K30 Cheyenne V8, 6.6L
• 1977-1980 Chevrolet K30 Cheyenne V8, 5.7L
• 1977-1980 Chevrolet K30 Custom Deluxe V8, 6.6L
• 1977-1980 Chevrolet K30 Custom Deluxe V8, 5.7L
• 1977-1980 Chevrolet K30 Custom Deluxe V8, 7.4L
• 1977-1980 Chevrolet K30 Scottsdale V8, 6.6L
• 1977-1980 Chevrolet K30 Scottsdale V8, 5.7L
• 1977-1980 Chevrolet K30 Scottsdale V8, 7.4L
• 1977-1980 Chevrolet K30 Silverado V8, 6.6L
• 1977-1980 Chevrolet K30 Silverado V8, 5.7L
• 1977-1980 Chevrolet K30 Silverado V8, 7.4L
• 1975-1976 Chevrolet K5 Blazer Base V8, 5.7L
• 1975-1976 Chevrolet K5 Blazer Base V8, 6.6L
• 1976 Chevrolet K5 Blazer Base V8, 7.4L
• 1975-1979 Chevrolet K5 Blazer Cheyenne V8, 5.7L
• 1975-1979 Chevrolet K5 Blazer Cheyenne V8, 6.6L
• 1976-1978 Chevrolet K5 Blazer Cheyenne V8, 7.4L
• 1977-1980 Chevrolet K5 Blazer Cheyenne V8, 5.0L
• 1981 Chevrolet K5 Blazer Custom V8, 5.0L
• 1975-1979 Chevrolet K5 Blazer Custom Deluxe V8, 5.7L
• 1975-1979 Chevrolet K5 Blazer Custom Deluxe V8, 6.6L
• 1977-1980 Chevrolet K5 Blazer Custom Deluxe V8, 5.0L
• 1977-1978 Chevrolet K5 Blazer Custom Deluxe V8, 7.4L
• 1981 Chevrolet K5 Blazer Deluxe V8, 5.0L
• 1975 Chevrolet K5 Blazer Scottsdale V8, 6.6L
• 1975 Chevrolet K5 Blazer Scottsdale V8, 5.7L
• 1975 Chevrolet K5 Blazer Silverado V8, 5.7L
• 1975 Chevrolet K5 Blazer Silverado V8, 6.6L
• 1980-1981 Chevrolet K5 Blazer Silverado V8, 5.0L
• 1997-1999 Dodge Dakota Base V8, 5.2L
• 1997-2003 Dodge Dakota Base V6, 3.9L
• 2002-2003 Dodge Dakota Base V8, 4.7L
• 2009-2010 Dodge Dakota Big Horn V6, 3.7L
• 2009-2010 Dodge Dakota Big Horn V8, 4.7L
• 2005-2010 Dodge Dakota Laramie V8, 4.7L
• 2005-2010 Dodge Dakota Laramie V6, 3.7L
• 2009-2010 Dodge Dakota Lone Star V6, 3.7L
• 2009-2010 Dodge Dakota Lone Star V8, 4.7L
• 1998-1999 Dodge Dakota R/T V8, 5.9L
• 1997-1999 Dodge Dakota SLT V8, 5.2L
• 1997-2003 Dodge Dakota SLT V6, 3.9L
• 2002-2008 Dodge Dakota SLT V8, 4.7L
• 2005-2008 Dodge Dakota SLT V6, 3.7L
• 2004 Dodge Dakota SLT Plus V8, 4.7L
• 2005-2008 Dodge Dakota Sport V6, 3.7L
• 1997-1999 Dodge Dakota Sport V8, 5.2L
• 1997-2003 Dodge Dakota Sport V6, 3.9L
• 2002-2008 Dodge Dakota Sport V8, 4.7L
• 2004 Dodge Dakota Sport Plus V8, 4.7L
• 2005-2007 Dodge Dakota ST V8, 4.7L
• 2005-2010 Dodge Dakota ST V6, 3.7L
• 2002-2008 Dodge Dakota SXT V8, 4.7L
• 2002 Dodge Dakota SXT V6, 3.9L
• 2008 Dodge Dakota SXT V6, 3.7L
• 2008 Dodge Dakota TRX V8, 4.7L
• 2008 Dodge Dakota TRX V6, 3.7L
• 2008-2010 Dodge Dakota TRX4 V8, 4.7L
• 2008-2009 Dodge Dakota TRX4 V6, 3.7L
• 1997-2002 Ford Expedition Eddie Bauer V8, 4.6L
• 1997-2002 Ford Expedition Eddie Bauer V8, 5.4L
• 1997-2002 Ford Expedition XLT V8, 4.6L
• 1997-2002 Ford Expedition XLT V8, 5.4L
• 1997-2000 Ford F-150 Base V6, 4.2L
• 1997-2000 Ford F-150 Base V8, 4.6L
• 1997-2000 Ford F-150 Base V8, 5.4L
• 2008 Ford F-150 FX2 V8, 4.6L
• 2007-2008 Ford F-150 FX2 V8, 5.4L
• 2004-2008 Ford F-150 FX4 V8, 5.4L
• 2000-2008 Ford F-150 Harley-Davidson Edition V8, 5.4L
• 2001-2003 Ford F-150 King Ranch V8, 4.6L
• 2001-2008 Ford F-150 King Ranch V8, 5.4L
• 1997-2003 Ford F-150 Lariat V8, 4.6L
• 1997-2008 Ford F-150 Lariat V8, 5.4L
• 1999-2003 Ford F-150 Lightning V8, 5.4L
• 2008 Ford F-150 Limited V8, 5.4L
• 2005-2008 Ford F-150 STX V6, 4.2L
• 2004-2008 Ford F-150 STX V8, 4.6L
• 1997-2008 Ford F-150 XL V8, 4.6L
• 1997-2008 Ford F-150 XL V8, 5.4L
• 1997-2008 Ford F-150 XL V6, 4.2L
• 1997-2008 Ford F-150 XLT V6, 4.2L
• 1997-2008 Ford F-150 XLT V8, 4.6L
• 1997-2008 Ford F-150 XLT V8, 5.4L
• 2008-2009 Ford Mustang Bullitt V8, 4.6L
• 2005-2010 Ford Mustang GT V8, 4.6L
• 2007-2008 Ford Mustang Shelby GT V8, 4.6L
• 2007-2010 Ford Mustang Shelby GT500 V8, 5.4L
• 2008-2009 Ford Mustang Shelby GT500KR V8, 5.4L
• 1988-1993 GMC C1500 Sierra V8, 5.0L
• 1988-1993 GMC C1500 Sierra V6, 4.3L
• 1988-1993 GMC C1500 Sierra SLE V8, 5.0L
• 1988-1993 GMC C1500 Sierra SLE V6, 4.3L
• 1988-1993 GMC C1500 Sierra SLX V8, 5.0L
• 1988-1993 GMC C1500 Sierra SLX V6, 4.3L
• 1988-1993 GMC C2500 Sierra V8, 5.0L
• 1988-1993 GMC C2500 Sierra V6, 4.3L
• 1988-1993 GMC C2500 Sierra SLE V8, 5.0L
• 1988-1993 GMC C2500 Sierra SLE V6, 4.3L
• 1988-1993 GMC C2500 Sierra SLX V6, 4.3L
• 1988-1993 GMC C2500 Sierra SLX V8, 5.0L
• 1975-1979 GMC Jimmy Base V8, 5.7L
• 1975-1979 GMC Jimmy Base V8, 6.6L
• 1977-1981 GMC Jimmy Base V8, 5.0L
• 1973-1974 GMC Jimmy Base V8, 5.7L
• 1975-1979 GMC Jimmy High Sierra V8, 5.7L
• 1975-1979 GMC Jimmy High Sierra V8, 6.6L
• 1977-1981 GMC Jimmy High Sierra V8, 5.0L
• 1975-1979 GMC Jimmy Sierra Classic V8, 5.7L
• 1975-1979 GMC Jimmy Sierra Classic V8, 6.6L
• 1977-1981 GMC Jimmy Sierra Classic V8, 5.0L
• 1975-1979 GMC Jimmy Sierra Grande V8, 6.6L
• 1977-1981 GMC Jimmy Sierra Grande V8, 5.0L
• 1975-1979 GMC Jimmy Sierra Grande V8, 5.7L
• 1978-1981 GMC Jimmy Street Coupe V8, 5.0L
• 1978-1979 GMC Jimmy Street Coupe V8, 6.6L
• 1978-1979 GMC Jimmy Street Coupe V8, 5.7L
• 1988-1993 GMC K1500 Sierra V8, 5.0L
• 1988-1993 GMC K1500 Sierra V6, 4.3L
• 1988-1993 GMC K1500 Sierra SLE V8, 5.0L
• 1988-1993 GMC K1500 Sierra SLE V6, 4.3L
• 1988-1993 GMC K1500 Sierra SLX V6, 4.3L
• 1988-1993 GMC K1500 Sierra SLX V8, 5.0L
• 1993 GMC K1500 Sierra Sport V8, 5.0L
• 1993 GMC K1500 Sierra Sport V6, 4.3L
• 1988-1993 GMC K2500 Sierra V8, 5.0L
• 1988-1993 GMC K2500 Sierra V6, 4.3L
• 1988-1993 GMC K2500 Sierra SLE V8, 5.0L
• 1988-1993 GMC K2500 Sierra SLE V6, 4.3L
• 1988-1993 GMC K2500 Sierra SLX V8, 5.0L
• 1988-1993 GMC K2500 Sierra SLX V6, 4.3L
• 1998-2002 Lincoln Navigator Base V8, 5.4L

Note: Universal Muffler - Not a direct fit. Some adaptation required.