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.
- Durable fully welded 409SS stainless steel
- Aggressive Sound Exterior Exhaust Tone
- Noticeable interior resonance
- Excellent Street/Strip and Off Road application
Flowmaster 40 Series Chambered Muffler 40 Series Stainless Steel 2.25 Offset In 2.25 Offset Out Aggressive Sound Flowmaster 8042443
Specifications:
| Country of Origin | USA |
| Sold As | Kit |
| UPC | 700042022540 |
| Availability | Available |
| Universal | Yes |
| Inlet Location | Offset |
| Shape | Oval |
This Part Fits:
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1966 | Chevrolet | Caprice | ||
| 1967 | Chevrolet | Caprice | ||
| 1968 | Chevrolet | Caprice | ||
| 1969 | Chevrolet | Caprice | ||
| 1970 | Chevrolet | Caprice | ||
| 1971 | Chevrolet | Caprice | ||
| 1972 | Chevrolet | Caprice | ||
| 1973 | Chevrolet | Caprice | Classic | |
| 1973 | Chevrolet | Caprice | Estate | |
| 1975 | Buick | Skylark | ||
| 1976 | Buick | Skylark | ||
| 1977 | Buick | Skylark | ||
| 1975 | Buick | Skylark | SR | |
| 1976 | Buick | Skylark | SR | |
| 1977 | Buick | Skylark | SR | |
| 1976 | Buick | Skylark | S | |
| 1977 | Buick | Skylark | S | |
| 1976 | GMC | Jimmy | ||
| 1977 | GMC | Jimmy | ||
| 1978 | GMC | Jimmy | ||
| 1976 | Chevrolet | K5 Blazer | ||
| 1976 | GMC | Jimmy | Sierra Classic | |
| 1977 | GMC | Jimmy | Sierra Classic | |
| 1978 | GMC | Jimmy | Sierra Classic | |
| 1976 | GMC | Jimmy | Sierra Grande | |
| 1977 | GMC | Jimmy | Sierra Grande | |
| 1978 | GMC | Jimmy | Sierra Grande | |
| 1976 | GMC | Jimmy | High Sierra | |
| 1977 | GMC | Jimmy | High Sierra | |
| 1978 | GMC | Jimmy | High Sierra | |
| 1976 | Chevrolet | K5 Blazer | Cheyenne | |
| 1977 | Chevrolet | K5 Blazer | Cheyenne | |
| 1978 | Chevrolet | K5 Blazer | Cheyenne | |
| 1977 | Chevrolet | K5 Blazer | Custom Deluxe | |
| 1978 | Chevrolet | K5 Blazer | Custom Deluxe | |
| 1978 | GMC | Jimmy | Street Coupe | |
| 1986 | Ford | Mustang | GT | |
| 1987 | Ford | Mustang | GT | |
| 1988 | Ford | Mustang | GT | |
| 1989 | Ford | Mustang | GT | |
| 1990 | Ford | Mustang | GT | |
| 1991 | Ford | Mustang | GT | |
| 1992 | Ford | Mustang | GT | |
| 1993 | Ford | Mustang | GT | |
| 1994 | Ford | Mustang | GT | |
| 1995 | Ford | Mustang | GT | |
| 1996 | Ford | Mustang | GT | |
| 1997 | Ford | Mustang | GT | |
| 1998 | Ford | Mustang | GT | |
| 1999 | Ford | Mustang | GT | |
| 2000 | Ford | Mustang | GT | |
| 2001 | Ford | Mustang | GT | |
| 2002 | Ford | Mustang | GT | |
| 2003 | Ford | Mustang | GT | |
| 2004 | Ford | Mustang | GT | |
| 1986 | Ford | Mustang | SVO | |
| 1986 | Ford | Mustang | LX | |
| 1987 | Ford | Mustang | LX | |
| 1988 | Ford | Mustang | LX | |
| 1989 | Ford | Mustang | LX | |
| 1990 | Ford | Mustang | LX | |
| 1991 | Ford | Mustang | LX | |
| 1992 | Ford | Mustang | LX | |
| 1993 | Ford | Mustang | LX | |
| 1994 | Chevrolet | Caprice | Classic LS | |
| 1994 | Chevrolet | Caprice | Classic | |
| 1995 | Chevrolet | Caprice | Classic | |
| 1996 | Chevrolet | Caprice | Classic | |
| 1994 | Chevrolet | Impala | SS | |
| 1995 | Chevrolet | Impala | SS | |
| 1996 | Chevrolet | Impala | SS | |
| 2001 | Ford | Mustang | GT Bullitt | |
| 2003 | Ford | Mustang | SVT Cobra 10th Anniversary | |
| 2004 | Ford | Mustang | SVT Cobra | |
| 2005 | Dodge | Magnum | SXT | |
| 2006 | Dodge | Magnum | SXT | |
| 2007 | Dodge | Magnum | SXT | |
| 2008 | Dodge | Magnum | SXT | |
| 2005 | Dodge | Magnum | SXT Special Edition | |
| 2005 | Dodge | Magnum | SE | |
| 2006 | Dodge | Magnum | SE | |
| 2007 | Dodge | Magnum | SE | |
| 2008 | Dodge | Magnum | SE | |
| 2005 | Dodge | Magnum | R/T | |
| 2006 | Dodge | Magnum | R/T | |
| 2007 | Dodge | Magnum | R/T | |
| 2008 | Dodge | Magnum | R/T | |
| 2005 | Chrysler | 300 | Touring | |
| 2006 | Chrysler | 300 | Touring | |
| 2007 | Chrysler | 300 | Touring | |
| 2008 | Chrysler | 300 | Touring | |
| 2009 | Chrysler | 300 | Touring | |
| 2010 | Chrysler | 300 | Touring | |
| 2011 | Chrysler | 300 | Touring | |
| 2005 | Chrysler | 300 | C | |
| 2006 | Chrysler | 300 | C | |
| 2007 | Chrysler | 300 | C | |
| 2008 | Chrysler | 300 | C | |
| 2009 | Chrysler | 300 | C | |
| 2010 | Chrysler | 300 | C | |
| 2011 | Chrysler | 300 | C | |
| 2012 | Chrysler | 300 | C | |
| 2013 | Chrysler | 300 | C | |
| 2005 | Chrysler | 300 | ||
| 2006 | Chrysler | 300 | ||
| 2007 | Chrysler | 300 | ||
| 2005 | Ford | Mustang | ||
| 2006 | Ford | Mustang | ||
| 2007 | Ford | Mustang | ||
| 2008 | Ford | Mustang | ||
| 2009 | Ford | Mustang | ||
| 2010 | Ford | Mustang | ||
| 2011 | Ford | Mustang | ||
| 2012 | Ford | Mustang | ||
| 2013 | Ford | Mustang | ||
| 2005 | Chrysler | 300 | Limited | |
| 2006 | Chrysler | 300 | Limited | |
| 2007 | Chrysler | 300 | Limited | |
| 2008 | Chrysler | 300 | Limited | |
| 2009 | Chrysler | 300 | Limited | |
| 2010 | Chrysler | 300 | Limited | |
| 2011 | Chrysler | 300 | Limited | |
| 2012 | Chrysler | 300 | Limited | |
| 2006 | Dodge | Charger | SE | |
| 2007 | Dodge | Charger | SE | |
| 2008 | Dodge | Charger | SE | |
| 2009 | Dodge | Charger | SE | |
| 2010 | Dodge | Charger | SE | |
| 2006 | Dodge | Charger | Daytona R/T | |
| 2006 | Dodge | Charger | SXT | |
| 2007 | Dodge | Charger | SXT | |
| 2008 | Dodge | Charger | SXT | |
| 2009 | Dodge | Charger | SXT | |
| 2010 | Dodge | Charger | SXT | |
| 2006 | Dodge | Charger | ||
| 2007 | Dodge | Charger | ||
| 2006 | Dodge | Charger | R/T | |
| 2007 | Dodge | Charger | R/T | |
| 2008 | Dodge | Charger | R/T | |
| 2009 | Dodge | Charger | R/T | |
| 2010 | Dodge | Charger | R/T | |
| 2008 | Chrysler | 300 | LX | |
| 2009 | Chrysler | 300 | LX | |
| 2009 | Dodge | Challenger | R/T | |
| 2010 | Dodge | Challenger | R/T | |
| 2011 | Dodge | Challenger | R/T | |
| 2012 | Dodge | Challenger | R/T | |
| 2013 | Dodge | Challenger | R/T | |
| 2009 | Chrysler | 300 | Signature Series | |
| 2009 | Dodge | Challenger | SE | |
| 2010 | Dodge | Challenger | SE | |
| 2011 | Dodge | Challenger | SE | |
| 2010 | Chevrolet | Camaro | LS | |
| 2011 | Chevrolet | Camaro | LS | |
| 2012 | Chevrolet | Camaro | LS | |
| 2013 | Chevrolet | Camaro | LS | |
| 2010 | Chevrolet | Camaro | LT | |
| 2011 | Chevrolet | Camaro | LT | |
| 2012 | Chevrolet | Camaro | LT | |
| 2013 | Chevrolet | Camaro | LT | |
| 2010 | Chrysler | 300 | S | |
| 2011 | Chrysler | 300 | ||
| 2012 | Chrysler | 300 | ||
| 2013 | Chrysler | 300 | ||
| 2012 | Chrysler | 300 | S | |
| 2013 | Chrysler | 300 | S | |
| 2012 | Dodge | Challenger | SXT | |
| 2013 | Dodge | Challenger | SXT | |
| 2012 | Dodge | Challenger | SXT Plus | |
| 2012 | Dodge | Challenger | R/T Classic |