{"product_id":"flowmaster-flo8043041-40-series-stainless-steel-muffler","title":"Flowmaster flo8043041 - 40 Series Stainless Steel Muffler","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.\n40 Series  Stainless Steel - 3.00 Offset In \/ 3.00 Center Out - Aggressive Sound\nUniversal Muffler - Some adaptation may be required.\n\u003cul\u003e\n  \u003cli\u003eExcellent Street\/Strip and Off Road application\u003c\/li\u003e\n  \u003cli\u003eDurable fully welded 409SS stainless steel\u003c\/li\u003e\n  \u003cli\u003eAggressive Sound Exterior Exhaust Tone\u003c\/li\u003e\n  \u003cli\u003eNoticeable interior resonance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Flowmaster 40 Series stainless steel muffler delivers an aggressive exterior and interior exhaust tone for street, strip, and off-road applications. Designed for drivers seeking the original Flowmaster sound, this universal muffler features a 3.00-inch offset inlet and a 3.00-inch center outlet. Some adaptation may be required for installation.\u003c\/p\u003e\u003cp\u003eConstructed from 16-gauge 409S stainless steel and fully MIG welded, the muffler is built for durability. Its aggressive exterior tone is paired with noticeable interior resonance. Fitment data lists select 1999–2003 Ford F-250, F-250 Super Duty, and Ford Expedition applications; verify vehicle configuration and installation requirements before purchase.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Performance Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOriginal 40 Series Sound:\u003c\/strong\u003e Delivers an aggressive exterior and interior exhaust tone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e409S Stainless Steel Construction:\u003c\/strong\u003e Uses durable 16-gauge stainless steel material.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully MIG Welded:\u003c\/strong\u003e Supports long-term durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Application:\u003c\/strong\u003e Suitable for street, strip, and off-road use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Product Specifications \u0026amp; Technical Data\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: Flowmaster\u003c\/li\u003e\n\u003cli\u003ePart Number: flo8043041\u003c\/li\u003e\n\u003cli\u003eSeries: 40 Series\u003c\/li\u003e\n\u003cli\u003eProduct Type: Universal muffler\u003c\/li\u003e\n\u003cli\u003eMaterial: 409S stainless steel\u003c\/li\u003e\n\u003cli\u003eMaterial Gauge: 16 gauge\u003c\/li\u003e\n\u003cli\u003eInlet Configuration: 3.00-inch offset inlet\u003c\/li\u003e\n\u003cli\u003eOutlet Configuration: 3.00-inch center outlet\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat's Included in the Box\u003c\/h3\u003e\u003cp\u003eOne Flowmaster 40 Series stainless steel muffler.\u003c\/p\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eListed applications include 1999 Ford F-250, 1999 Ford F-250 Super Duty, 2000 Ford F-250 Super Duty, 2001 Ford F-250 Super Duty, 2002 Ford F-250 Super Duty, and 2003 Ford Expedition. Some adaptation may be required.\u003c\/p\u003e\u003cbr\u003e\nFitments:\u003cbr\u003e\n1987 Chevrolet Blazer Custom Deluxe\u003cbr\u003e\n1987 Chevrolet Blazer Silverado\u003cbr\u003e\n1987 Chevrolet R10 Suburban Custom Deluxe\u003cbr\u003e\n1987 Chevrolet R10 Suburban Scottsdale\u003cbr\u003e\n1987 Chevrolet R10 Suburban Silverado\u003cbr\u003e\n1987 Chevrolet V10 Suburban Custom Deluxe\u003cbr\u003e\n1987 Chevrolet V10 Suburban Scottsdale\u003cbr\u003e\n1987 Chevrolet V10 Suburban Silverado\u003cbr\u003e\n1987 Chevrolet V20 Suburban Custom Deluxe\u003cbr\u003e\n1987 GMC Jimmy Base\u003cbr\u003e\n1987 GMC Jimmy Sierra Classic\u003cbr\u003e\n1987 GMC R1500 Suburban Base\u003cbr\u003e\n1987 GMC R1500 Suburban High Sierra\u003cbr\u003e\n1987 GMC R1500 Suburban Sierra Classic\u003cbr\u003e\n1987 GMC V1500 Suburban Base\u003cbr\u003e\n1987 GMC V1500 Suburban High Sierra\u003cbr\u003e\n1987 GMC V1500 Suburban Sierra Classic\u003cbr\u003e\n1988 Chevrolet Blazer Scottsdale\u003cbr\u003e\n1988 Chevrolet Blazer Silverado\u003cbr\u003e\n1988 Chevrolet R10 Suburban Scottsdale\u003cbr\u003e\n1988 Chevrolet R10 Suburban Silverado\u003cbr\u003e\n1988 Chevrolet V10 Suburban Scottsdale\u003cbr\u003e\n1988 Chevrolet V10 Suburban Silverado\u003cbr\u003e\n1988 GMC Jimmy Base\u003cbr\u003e\n1988 GMC Jimmy Sierra Classic\u003cbr\u003e\n1988 GMC R1500 Suburban Base\u003cbr\u003e\n1988 GMC R1500 Suburban Sierra Classic\u003cbr\u003e\n1988 GMC V1500 Suburban Base\u003cbr\u003e\n1988 GMC V1500 Suburban Sierra Classic\u003cbr\u003e\n1989 Chevrolet Blazer Scottsdale\u003cbr\u003e\n1989 Chevrolet Blazer Silverado\u003cbr\u003e\n1989 Chevrolet R1500 Suburban Scottsdale\u003cbr\u003e\n1989 Chevrolet R1500 Suburban Silverado\u003cbr\u003e\n1989 Chevrolet V1500 Suburban Scottsdale\u003cbr\u003e\n1989 Chevrolet V1500 Suburban Silverado\u003cbr\u003e\n1989 GMC Jimmy Base\u003cbr\u003e\n1989 GMC Jimmy Sierra Classic\u003cbr\u003e\n1989 GMC R1500 Suburban Base\u003cbr\u003e\n1989 GMC R1500 Suburban Sierra Classic\u003cbr\u003e\n1989 GMC V1500 Suburban Base\u003cbr\u003e\n1989 GMC V1500 Suburban Sierra Classic\u003cbr\u003e\n1990 Chevrolet Blazer Scottsdale\u003cbr\u003e\n1990 Chevrolet Blazer Silverado\u003cbr\u003e\n1990 Chevrolet R1500 Suburban Scottsdale\u003cbr\u003e\n1990 Chevrolet R1500 Suburban Silverado\u003cbr\u003e\n1990 Chevrolet V1500 Suburban Scottsdale\u003cbr\u003e\n1990 Chevrolet V1500 Suburban Silverado\u003cbr\u003e\n1990 GMC Jimmy Base\u003cbr\u003e\n1990 GMC Jimmy Sierra Classic\u003cbr\u003e\n1990 GMC R1500 Suburban Base\u003cbr\u003e\n1990 GMC R1500 Suburban SLE\u003cbr\u003e\n1990 GMC V1500 Suburban Base\u003cbr\u003e\n1990 GMC V1500 Suburban SLE\u003cbr\u003e\n1991 Chevrolet Blazer Scottsdale\u003cbr\u003e\n1991 Chevrolet Blazer Silverado\u003cbr\u003e\n1991 Chevrolet R1500 Suburban Scottsdale\u003cbr\u003e\n1991 Chevrolet R1500 Suburban Silverado\u003cbr\u003e\n1991 Chevrolet V1500 Suburban Scottsdale\u003cbr\u003e\n1991 Chevrolet V1500 Suburban Silverado\u003cbr\u003e\n1991 GMC Jimmy Base\u003cbr\u003e\n1991 GMC R1500 Suburban Base\u003cbr\u003e\n1991 GMC V1500 Suburban Base\u003cbr\u003e\n1994 Dodge Ram 2500 Base\u003cbr\u003e\n1994 Dodge Ram 3500 Base\u003cbr\u003e\n1995 Dodge Ram 2500 Base\u003cbr\u003e\n1995 Dodge Ram 3500 Base\u003cbr\u003e\n1996 Dodge Ram 2500 Base\u003cbr\u003e\n1996 Dodge Ram 3500 Base\u003cbr\u003e\n1999 Ford F-250 Base\u003cbr\u003e\n1999 Ford F-250 Lariat\u003cbr\u003e\n1999 Ford F-250 XL\u003cbr\u003e\n1999 Ford F-250 XLT\u003cbr\u003e\n1999 Ford F-250 Super Duty Lariat\u003cbr\u003e\n1999 Ford F-250 Super Duty XL\u003cbr\u003e\n1999 Ford F-250 Super Duty XLT\u003cbr\u003e\n1999 Ford F-350 Super Duty Lariat\u003cbr\u003e\n1999 Ford F-350 Super Duty XL\u003cbr\u003e\n1999 Ford F-350 Super Duty XLT\u003cbr\u003e\n2000 Ford F-250 Super Duty Lariat\u003cbr\u003e\n2000 Ford F-250 Super Duty XL\u003cbr\u003e\n2000 Ford F-250 Super Duty XLT\u003cbr\u003e\n2000 Ford F-350 Super Duty Lariat\u003cbr\u003e\n2000 Ford F-350 Super Duty XL\u003cbr\u003e\n2000 Ford F-350 Super Duty XLT\u003cbr\u003e\n2001 Ford F-250 Super Duty Lariat\u003cbr\u003e\n2001 Ford F-250 Super Duty XL\u003cbr\u003e\n2001 Ford F-250 Super Duty XLT\u003cbr\u003e\n2001 Ford F-350 Super Duty Lariat\u003cbr\u003e\n2001 Ford F-350 Super Duty XL\u003cbr\u003e\n2001 Ford F-350 Super Duty XLT\u003cbr\u003e\n2002 Ford F-250 Super Duty Lariat\u003cbr\u003e\n2002 Ford F-250 Super Duty XL\u003cbr\u003e\n2002 Ford F-250 Super Duty XLT\u003cbr\u003e\n2002 Ford F-350 Super Duty Lariat\u003cbr\u003e\n2002 Ford F-350 Super Duty XL\u003cbr\u003e\n2002 Ford F-350 Super Duty XLT\u003cbr\u003e\n2003 Ford Expedition Eddie Bauer\u003cbr\u003e\n2003 Ford Expedition XLT\u003cbr\u003e\n2003 Ford F-250 Super Duty Lariat\u003cbr\u003e\n2003 Ford F-250 Super Duty XL\u003cbr\u003e\n2003 Ford F-250 Super Duty XLT\u003cbr\u003e\n2003 Ford F-350 Super Duty Lariat\u003cbr\u003e\n2003 Ford F-350 Super Duty XL\u003cbr\u003e\n2003 Ford F-350 Super Duty XLT\u003cbr\u003e\n2003 Lincoln Navigator Base\u003cbr\u003e\n2004 Ford Expedition Eddie Bauer\u003cbr\u003e\n2004 Ford Expedition NBX\u003cbr\u003e\n2004 Ford Expedition XLT\u003cbr\u003e\n2004 Ford Expedition XLT Sport\u003cbr\u003e\n2004 Ford F-250 Super Duty Harley-Davidson Edition\u003cbr\u003e\n2004 Ford F-250 Super Duty King Ranch\u003cbr\u003e\n2004 Ford F-250 Super Duty Lariat\u003cbr\u003e\n2004 Ford F-250 Super Duty XL\u003cbr\u003e\n2004 Ford F-250 Super Duty XLT\u003cbr\u003e\n2004 Ford F-350 Super Duty Harley-Davidson Edition\u003cbr\u003e\n2004 Ford F-350 Super Duty King Ranch\u003cbr\u003e\n2004 Ford F-350 Super Duty Lariat\u003cbr\u003e\n2004 Ford F-350 Super Duty XL\u003cbr\u003e\n2004 Ford F-350 Super Duty XLT\u003cbr\u003e\n2004 Lincoln Navigator Base\u003cbr\u003e\n2005 Ford Expedition Eddie Bauer\u003cbr\u003e\n2005 Ford Expedition Limited\u003cbr\u003e\n2005 Ford Expedition XLS\u003cbr\u003e\n2005 Ford Expedition XLT\u003cbr\u003e\n2005 Lincoln Navigator Base\u003cbr\u003e\n2006 Ford Expedition Eddie Bauer\u003cbr\u003e\n2006 Ford Expedition King Ranch\u003cbr\u003e\n2006 Ford Expedition Limited\u003cbr\u003e\n2006 Ford Expedition XLS\u003cbr\u003e\n2006 Ford Expedition XLT\u003cbr\u003e\n2006 Ford Expedition XLT Sport\u003cbr\u003e\n2006 Lincoln Navigator Luxury\u003cbr\u003e\n2006 Lincoln Navigator Ultimate\u003cbr\u003e\n2007 Ford Expedition Eddie Bauer\u003cbr\u003e\n2007 Ford Expedition EL Eddie Bauer\u003cbr\u003e\n2007 Ford Expedition EL Limited\u003cbr\u003e\n2007 Ford Expedition EL XLT\u003cbr\u003e\n2007 Ford Expedition Limited\u003cbr\u003e\n2007 Ford Expedition XLT\u003cbr\u003e\n2007 Lincoln Navigator L Luxury\u003cbr\u003e\n2007 Lincoln Navigator L Ultimate\u003cbr\u003e\n2007 Lincoln Navigator Luxury\u003cbr\u003e\n2007 Lincoln Navigator Ultimate\u003cbr\u003e\n2008 Ford Expedition Eddie Bauer\u003cbr\u003e\n2008 Ford Expedition EL Eddie Bauer\u003cbr\u003e\n2008 Ford Expedition EL King Ranch\u003cbr\u003e\n2008 Ford Expedition EL Limited\u003cbr\u003e\n2008 Ford Expedition EL XLT\u003cbr\u003e\n2008 Ford Expedition Funkmaster Flex Edition\u003cbr\u003e\n2008 Ford Expedition King Ranch\u003cbr\u003e\n2008 Ford Expedition Limited\u003cbr\u003e\n2008 Ford Expedition XLT\u003cbr\u003e\n2008 Lincoln Navigator Base\u003cbr\u003e\n2008 Lincoln Navigator L\u003cbr\u003e\n2009 Ford Expedition Eddie Bauer\u003cbr\u003e\n2009 Ford Expedition EL Eddie Bauer\u003cbr\u003e\n2009 Ford Expedition EL King Ranch\u003cbr\u003e\n2009 Ford Expedition EL Limited\u003cbr\u003e\n2009 Ford Expedition EL XLT\u003cbr\u003e\n2009 Ford Expedition King Ranch\u003cbr\u003e\n2009 Ford Expedition Limited\u003cbr\u003e\n2009 Ford Expedition XLT\u003cbr\u003e\n2009 Lincoln Navigator Base\u003cbr\u003e\n2009 Lincoln Navigator L\u003cbr\u003e\n2010 Ford Expedition Eddie Bauer\u003cbr\u003e\n2010 Ford Expedition EL Eddie Bauer\u003cbr\u003e\n2010 Ford Expedition EL King Ranch\u003cbr\u003e\n2010 Ford Expedition EL Limited\u003cbr\u003e\n2010 Ford Expedition EL XLT\u003cbr\u003e\n2010 Ford Expedition King Ranch\u003cbr\u003e\n2010 Ford Expedition Limited\u003cbr\u003e\n2010 Ford Expedition XLT\u003cbr\u003e\n2010 Lincoln Navigator Base\u003cbr\u003e\n2010 Lincoln Navigator L\u003cbr\u003e\n2019 Chevrolet Silverado 1500 Custom\u003cbr\u003e\n2019 Chevrolet Silverado 1500 Custom Trail Boss\u003cbr\u003e\n2019 Chevrolet Silverado 1500 High Country\u003cbr\u003e\n2019 Chevrolet Silverado 1500 LT\u003cbr\u003e\n2019 Chevrolet Silverado 1500 LT Trail Boss\u003cbr\u003e\n2019 Chevrolet Silverado 1500 LTZ\u003cbr\u003e\n2019 Chevrolet Silverado 1500 RST\u003cbr\u003e\n2019 Chevrolet Silverado 1500 SSV\u003cbr\u003e\n2019 Chevrolet Silverado 1500 WT\u003cbr\u003e\n2019 GMC Sierra 1500 AT4\u003cbr\u003e\n2019 GMC Sierra 1500 Base\u003cbr\u003e\n2019 GMC Sierra 1500 Denali\u003cbr\u003e\n2019 GMC Sierra 1500 Elevation\u003cbr\u003e\n2019 GMC Sierra 1500 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LT\u003cbr\u003e\n2021 Chevrolet Silverado 1500 LT Trail Boss\u003cbr\u003e\n2021 Chevrolet Silverado 1500 LTZ\u003cbr\u003e\n2021 Chevrolet Silverado 1500 RST\u003cbr\u003e\n2021 Chevrolet Silverado 1500 SSV\u003cbr\u003e\n2021 Chevrolet Silverado 1500 WT\u003cbr\u003e\n2021 GMC Sierra 1500 AT4\u003cbr\u003e\n2021 GMC Sierra 1500 Base\u003cbr\u003e\n2021 GMC Sierra 1500 Denali\u003cbr\u003e\n2021 GMC Sierra 1500 Elevation\u003cbr\u003e\n2021 GMC Sierra 1500 SLE\u003cbr\u003e\n2021 GMC Sierra 1500 SLT\u003cbr\u003e\n2022 Chevrolet Silverado 1500 Custom Trail Boss\u003cbr\u003e\n2022 Chevrolet Silverado 1500 High Country\u003cbr\u003e\n2022 Chevrolet Silverado 1500 LT\u003cbr\u003e\n2022 Chevrolet Silverado 1500 LT Trail Boss\u003cbr\u003e\n2022 Chevrolet Silverado 1500 LTZ\u003cbr\u003e\n2022 Chevrolet Silverado 1500 RST\u003cbr\u003e\n2022 Chevrolet Silverado 1500 WT\u003cbr\u003e\n2022 GMC Sierra 1500 Denali\u003cbr\u003e\n2022 GMC Sierra 1500 Elevation\u003cbr\u003e\n2022 GMC Sierra 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