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Flowmaster
Flowmaster Exhaust Muffler 8042543
$135.95
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
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.
Flowmaster Exhaust Muffler 8042543
SKU: 8042543
$135.95
Limited Lifetime Warranty
Noticeable Interior Resonance
Aggressive Sound Exterior Exhaust Tone
Durable Fully Welded 409SS Stainless Steel
Excellent Street Or Strip And Off Road Application
Verified U.S. Supplier
Fitment Data Included
30-Day Returns
Prop 65 Warning
WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov
Emissions & Compliance
Emissions Compliance Exempt
$135.95
$135.95
$135.95
2-1/2 Inch
Inlet Diameter
2-1/2 Inch
Outlet Diameter
Stainless 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 409S stainless steel and fully MIG welded for maximum durability.
Specifications
Fitment / Application
1997-2000 Ford Expedition V8; 4.6L/281; GAS; MFI; Triton (Romeo)
1997-2002 Ford Expedition V8; 5.4L/330; GAS; MFI
1997-2000 Ford Expedition V8; 4.6L/281; GAS; MFI; Triton (Windsor)
1997-1998, 2001-2003 Ford F-150 V8; 4.6L/281; GAS; MFI; Triton (Windsor); Wheel Base 120.0"
1997-1998, 2001 Ford F-150 V8; 4.6L/281; GAS; MFI; Triton (Windsor); Wheel Base 157.0"
1997 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 157.0"
1997 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 139.0"
1997 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 120.0"
1997-1998, 2001 Ford F-150 V8; 4.6L/281; GAS; MFI; Triton (Romeo); Wheel Base 157.0"
1997-1998, 2001-2003 Ford F-150 V8; 4.6L/281; GAS; MFI; Triton (Romeo); Wheel Base 139.0"
1997-1998, 2001-2003 Ford F-150 V8; 4.6L/281; GAS; MFI; Triton (Romeo); Wheel Base 120.0"
1997-1999 Ford F-150 V6; 4.2L/256; GAS; MFI; Base; Wheel Base 120.0"
1997-1999, 2001 Ford F-150 V6; 4.2L/256; GAS; MFI; XLT; Wheel Base 157.0"
1997-1999, 2001 Ford F-150 V6; 4.2L/256; GAS; MFI; XLT; Wheel Base 139.0"
1997-1999, 2001 Ford F-150 V6; 4.2L/256; GAS; MFI; XLT; Wheel Base 120.0"
1997-1999, 2001 Ford F-150 V6; 4.2L/256; GAS; MFI; XL; Wheel Base 157.0"
1997-1999, 2001 Ford F-150 V6; 4.2L/256; GAS; MFI; XL; Wheel Base 139.0"
1997-1999, 2001 Ford F-150 V6; 4.2L/256; GAS; MFI; XL; Wheel Base 120.0"
1997-1999 Ford F-150 V6; 4.2L/256; GAS; MFI; Base; Wheel Base 157.0"
1997-1999 Ford F-150 V6; 4.2L/256; GAS; MFI; Base; Wheel Base 139.0"
1997-1998, 2001-2003 Ford F-150 V8; 4.6L/281; GAS; MFI; Triton (Windsor); Wheel Base 139.0"
1998 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI
1998 Ford F-150 V8; 5.4L/330; CNG; MFI
1998 Ford F-150 V8; 5.4L/330; GAS; MFI
1998, 2000, 2002 Lincoln Navigator V8; 5.4L/330; GAS; MFI
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; XL; Wheel Base 139.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; XL; Wheel Base 120.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; Lariat; Wheel Base 139.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; Lariat; Wheel Base 120.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; Base; Wheel Base 157.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; Base; Wheel Base 139.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; Base; Wheel Base 120.0"
1999 Ford F-150 V8; 4.6L/281; GAS; MFI; Triton (Romeo)
1999 Ford F-150 V8; 4.6L/281; GAS; MFI; Triton (Windsor)
1999-2003 Ford F-150 V8; 5.4L/330; GAS; MFI; Lightning
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Base; Wheel Base 139.0"
1999-2000 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; Lariat; Wheel Base 139.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; XL; Wheel Base 120.0"
1999-2000 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; XL; Wheel Base 139.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; XL; Wheel Base 157.0"
1999-2000 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; XLT; Wheel Base 120.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; XLT; Wheel Base 139.0"
1999-2003 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; Lightning
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Lariat; Wheel Base 120.0"
1999-2000 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; XLT; Wheel Base 157.0"
1999-2000 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; Base; Wheel Base 139.0"
1999-2000 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; Lariat; Wheel Base 120.0"
1999-2000 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; Base; Wheel Base 120.0"
1999-2000 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; Base; Wheel Base 157.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; XLT; Wheel Base 157.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Base; Wheel Base 120.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Base; Wheel Base 157.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Lariat; Wheel Base 139.0"
1999-2000 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; XL; Wheel Base 120.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; XL; Wheel Base 139.0"
1999-2000 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; XL; Wheel Base 157.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; XLT; Wheel Base 120.0"
1999-2000 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; XLT; Wheel Base 139.0"
1999-2003 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; Lightning
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; XLT; Wheel Base 157.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; XLT; Wheel Base 139.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; XLT; Wheel Base 120.0"
1999-2000 Ford F-150 V8; 5.4L/330; GAS; MFI; XL; Wheel Base 157.0"
1999 Lincoln Navigator V8; 5.4L/330; GAS; MFI; SOHC
1999 Lincoln Navigator V8; 5.4L/330; GAS; MFI; DOHC
2000 Ford F-150 V8; 5.4L/330; CNG; MFI; XLT; Wheel Base 139.0"
2000 Ford F-150 V8; 5.4L/330; CNG; MFI; XL; Wheel Base 139.0"
2000 Ford F-150 V8; 5.4L/330; CNG; MFI; XL; Wheel Base 120.0"
2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Lariat; Wheel Base 157.0"
2000 Ford F-150 V8; 5.4L/330; CNG; MFI; Lariat; Wheel Base 139.0"
2000-2003 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; Harley-Davidson Edition
2000 Ford F-150 V8; 5.4L/330; CNG; MFI; Base; Wheel Base 139.0"
2000 Ford F-150 V8; 4.6L/281; GAS; MFI
2000 Ford F-150 V6; 4.2L/256; GAS; MFI
2000 Ford F-150 V8; 5.4L/330; CNG; MFI; Base; Wheel Base 157.0"
2000 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; Lariat; Wheel Base 157.0"
2000 Ford F-150 V8; 5.4L/330; CNG; MFI; Lariat; Wheel Base 120.0"
2000 Ford F-150 V8; 5.4L/330; CNG; MFI; XLT; Wheel Base 120.0"
2000-2003 Ford F-150 V8; 5.4L/330; CNG; MFI; Harley-Davidson Edition
2000-2003 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; Harley-Davidson Edition
2000 Ford F-150 V8; 5.4L/330; CNG; MFI; XL; Wheel Base 157.0"
2000 Ford F-150 V8; 5.4L/330; CNG; MFI; Base; Wheel Base 120.0"
2000 Ford F-150 V8; 5.4L/330; CNG; MFI; Lariat; Wheel Base 157.0"
2000 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; Lariat; Wheel Base 157.0"
2000 Ford F-150 V8; 5.4L/330; CNG; MFI; XLT; Wheel Base 157.0"
2000-2003 Ford F-150 V8; 5.4L/330; CNG; MFI; Lightning
2000-2003 Ford F-150 V8; 5.4L/330; GAS; MFI; Harley-Davidson Edition
2001-2002 Ford Expedition V8; 4.6L/281; GAS; MFI
2001-2003 Ford F-150 V8; 5.4L/330; GAS; MFI; Lariat
2001-2003 Ford F-150 V8; 5.4L/330; GAS; MFI; XL
2001-2003 Ford F-150 V8; 5.4L/330; CNG; MFI; XL
2001-2003 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; XLT
2001-2003 Ford F-150 V8; 5.4L/330; CNG; MFI; King Ranch
2001-2003 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; Lariat
2001-2003 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; Lariat
2001-2003 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; XL
2001-2003 Ford F-150 V8; 5.4L/330; CNG; MFI; Lariat
2001-2003 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; King Ranch
2001-2003 Ford F-150 V8; 5.4L/330; GAS; MFI; King Ranch
2001-2003 Ford F-150 V8; 5.4L/330; GAS; MFI; Supercharged; XLT
2001-2003 Ford F-150 V8; 5.4L/330; GAS; MFI; XLT
2001-2003 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; XL
2001-2003 Ford F-150 V8; 5.4L/330; BI-FUEL; MFI; King Ranch
2001-2003 Ford F-150 V8; 5.4L/330; CNG; MFI; XLT
2001 Lincoln Navigator V8; 5.4L/330; GAS; MFI; VIN A
2001 Lincoln Navigator V8; 5.4L/330; GAS; MFI; VIN R
2002-2003 Ford F-150 V6; 4.2L/256; GAS; MFI; Wheel Base 120.0"
2002-2003 Ford F-150 V6; 4.2L/256; GAS; MFI; Wheel Base 139.0"
2004, 2006-2008 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 163.0"
2004, 2006-2008 Ford F-150 V8; 4.6L/281; GAS; MFI; Wheel Base 163.0"
2004-2008 Ford F-150 V8; 4.6L/281; GAS; MFI; Wheel Base 132.5"
2004-2008 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 132.5"
2004 Ford F-150 V8; 4.6L/281; GAS; MFI; Wheel Base 138.7"
2004-2005 Ford F-150 V8; 4.6L/281; GAS; MFI; Wheel Base 126.1"
2004 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 145.0"
2004 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 144.4"
2004 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 138.7"
2004-2005 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 126.1"
2004 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 125.8"
2004 Ford F-150 V8; 4.6L/281; GAS; MFI; Wheel Base 145.0"
2004 Ford F-150 V8; 4.6L/281; GAS; MFI; Wheel Base 144.4"
2004 Ford F-150 V8; 4.6L/281; GAS; MFI; Wheel Base 125.8"
2004 Ford F-150 Heritage V8; 4.6L/281; GAS; MFI
2004 Ford F-150 Heritage V8; 5.4L/330; CNG; MFI
2004 Ford F-150 Heritage V6; 4.2L/256; GAS; MFI
2004 Ford F-150 Heritage V8; 5.4L/330; GAS; MFI; Supercharged
2004 Ford F-150 Heritage V8; 5.4L/330; BI-FUEL; MFI
2005-2008 Ford F-150 V6; 4.2L/256; GAS; MFI; Wheel Base 132.5"
2005 Ford F-150 V6; 4.2L/256; GAS; MFI; Wheel Base 126.1"
2005 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 163.3"
2005 Ford F-150 V6; 4.2L/256; GAS; MFI; Wheel Base 163.3"
2005 Ford F-150 V8; 4.6L/281; GAS; MFI; Wheel Base 163.3"
2005 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 144.7"
2005 Ford F-150 V6; 4.2L/256; GAS; MFI; Wheel Base 144.7"
2005 Ford F-150 V8; 4.6L/281; GAS; MFI; Wheel Base 144.7"
2005 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 138.4"
2005 Ford F-150 V6; 4.2L/256; GAS; MFI; Wheel Base 138.4"
2005 Ford F-150 V8; 4.6L/281; GAS; MFI; Wheel Base 138.4"
2005-2010 Ford Mustang V8; 4.6L/281; GAS; MFI
2006-2008 Ford F-150 V6; 4.2L/256; GAS; MFI; Wheel Base 150.5"
2006-2008 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 150.5"
2006-2008 Ford F-150 V8; 4.6L/281; GAS; MFI; Wheel Base 150.5"
2006-2008 Ford F-150 V6; 4.2L/256; GAS; MFI; Wheel Base 144.5"
2006-2008 Ford F-150 V8; 5.4L/330; FLEX/GAS; MFI; Wheel Base 144.5"
2006-2008 Ford F-150 V8; 4.6L/281; GAS; MFI; Wheel Base 144.5"
2006-2008 Ford F-150 V6; 4.2L/256; GAS; MFI; Wheel Base 138.5"
2006-2008 Ford F-150 V8; 5.4L/330; FLEX/GAS; MFI; Wheel Base 138.5"
2006-2008 Ford F-150 V8; 4.6L/281; GAS; MFI; Wheel Base 138.5"
2006-2008 Ford F-150 V8; 5.4L/330; FLEX/GAS; MFI; Wheel Base 132.5"
2006-2008 Ford F-150 V6; 4.2L/256; GAS; MFI; Wheel Base 126.0"
2006-2008 Ford F-150 V8; 5.4L/330; FLEX/GAS; MFI; Wheel Base 126.0"
2006-2008 Ford F-150 V8; 4.6L/281; GAS; MFI; Wheel Base 126.0"
2006-2008 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 144.5"
2006-2008 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 126.0"
2006-2008 Ford F-150 V8; 5.4L/330; GAS; MFI; Wheel Base 138.5"
2006-2008 Ford F-150 V8; 5.4L/330; FLEX/GAS; MFI; Wheel Base 150.5"
2006-2008 Ford F-150 V8; 5.4L/330; FLEX/GAS; MFI; Wheel Base 163.0"
2006-2008 Ford F-150 V6; 4.2L/256; GAS; MFI; Wheel Base 163.0"
2007-2010 Ford Mustang V8; 5.4L/330; GAS; Supercharged; MFI
2010-2014 Chevrolet Camaro V8; 6.2L/6162; GAS; MFI; L99 ENG.
2010-2014 Chevrolet Camaro V8; 6.2L/6162; GAS; MFI; LS3 ENG.
2012-2014 Chevrolet Camaro V8; 6.2L/6162; GAS; MFI; Supercharged; LSA ENG.
Installation & Documents
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