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 3.00 Offset In 3.00 Offset Out Aggressive Sound Flowmaster 8043043
Specifications:
| Country of Origin | USA |
| Sold As | Kit |
| UPC | 700042022588 |
| Availability | Available |
| Universal | Yes |
| Inlet Location | Offset |
| Shape | Oval |
This Part Fits:
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1991 | Chevrolet | C1500 | 454 SS | |
| 1992 | Chevrolet | C1500 | 454 SS | |
| 1993 | Chevrolet | C1500 | 454 SS | |
| 1991 | Chevrolet | C1500 | Cheyenne | |
| 1992 | Chevrolet | C1500 | Cheyenne | |
| 1991 | GMC | C2500 | Sierra SLE | |
| 1992 | GMC | C2500 | Sierra SLE | |
| 1993 | GMC | C2500 | Sierra SLE | |
| 1994 | GMC | C2500 | Sierra SLE | |
| 1995 | GMC | C2500 | Sierra SLE | |
| 1996 | GMC | C2500 | Sierra SLE | |
| 1997 | GMC | C2500 | Sierra SLE | |
| 1998 | GMC | C2500 | Sierra SLE | |
| 1991 | GMC | C2500 | Sierra | |
| 1992 | GMC | C2500 | Sierra | |
| 1993 | GMC | C2500 | Sierra | |
| 1991 | GMC | K2500 | Sierra | |
| 1992 | GMC | K2500 | Sierra | |
| 1993 | GMC | K2500 | Sierra | |
| 1991 | GMC | K2500 | Sierra SLX | |
| 1992 | GMC | K2500 | Sierra SLX | |
| 1993 | GMC | K2500 | Sierra SLX | |
| 1991 | GMC | C2500 | Sierra SLX | |
| 1992 | GMC | C2500 | Sierra SLX | |
| 1993 | GMC | C2500 | Sierra SLX | |
| 1991 | Chevrolet | C1500 | Silverado | |
| 1992 | Chevrolet | C1500 | Silverado | |
| 1991 | Chevrolet | K2500 | Silverado | |
| 1992 | Chevrolet | K2500 | Silverado | |
| 1993 | Chevrolet | K2500 | Silverado | |
| 1994 | Chevrolet | K2500 | Silverado | |
| 1995 | Chevrolet | K2500 | Silverado | |
| 1996 | Chevrolet | K2500 | Silverado | |
| 1997 | Chevrolet | K2500 | Silverado | |
| 1998 | Chevrolet | K2500 | Silverado | |
| 1991 | Chevrolet | C2500 | Silverado | |
| 1992 | Chevrolet | C2500 | Silverado | |
| 1993 | Chevrolet | C2500 | Silverado | |
| 1994 | Chevrolet | C2500 | Silverado | |
| 1995 | Chevrolet | C2500 | Silverado | |
| 1996 | Chevrolet | C2500 | Silverado | |
| 1997 | Chevrolet | C2500 | Silverado | |
| 1998 | Chevrolet | C2500 | Silverado | |
| 1991 | Chevrolet | C2500 | Cheyenne | |
| 1992 | Chevrolet | C2500 | Cheyenne | |
| 1993 | Chevrolet | C2500 | Cheyenne | |
| 1994 | Chevrolet | C2500 | Cheyenne | |
| 1995 | Chevrolet | C2500 | Cheyenne | |
| 1996 | Chevrolet | C2500 | Cheyenne | |
| 1997 | Chevrolet | C2500 | Cheyenne | |
| 1998 | Chevrolet | C2500 | Cheyenne | |
| 1991 | GMC | K2500 | Sierra SLE | |
| 1992 | GMC | K2500 | Sierra SLE | |
| 1993 | GMC | K2500 | Sierra SLE | |
| 1994 | GMC | K2500 | Sierra SLE | |
| 1995 | GMC | K2500 | Sierra SLE | |
| 1996 | GMC | K2500 | Sierra SLE | |
| 1997 | GMC | K2500 | Sierra SLE | |
| 1998 | GMC | K2500 | Sierra SLE | |
| 1991 | Chevrolet | K2500 | Cheyenne | |
| 1992 | Chevrolet | K2500 | Cheyenne | |
| 1993 | Chevrolet | K2500 | Cheyenne | |
| 1994 | Chevrolet | K2500 | Cheyenne | |
| 1995 | Chevrolet | K2500 | Cheyenne | |
| 1996 | Chevrolet | K2500 | Cheyenne | |
| 1997 | Chevrolet | K2500 | Cheyenne | |
| 1998 | Chevrolet | K2500 | Cheyenne | |
| 1991 | Chevrolet | C1500 | WT | |
| 1992 | Chevrolet | C1500 | WT | |
| 1992 | Chevrolet | Blazer | Cheyenne | |
| 1993 | Chevrolet | Blazer | Cheyenne | |
| 1992 | Chevrolet | Blazer | Silverado | |
| 1993 | Chevrolet | Blazer | Silverado | |
| 1994 | Chevrolet | Blazer | Silverado | |
| 1994 | Chevrolet | C1500 | WT | |
| 1995 | Chevrolet | C1500 | WT | |
| 1996 | Chevrolet | C1500 | WT | |
| 1997 | Chevrolet | C1500 | WT | |
| 1998 | Chevrolet | C1500 | WT | |
| 1994 | GMC | K1500 | Sierra SLT | |
| 1995 | GMC | K1500 | Sierra SLT | |
| 1996 | GMC | K1500 | Sierra SLT | |
| 1997 | GMC | K1500 | Sierra SLT | |
| 1998 | GMC | K1500 | Sierra SLT | |
| 1999 | GMC | K1500 | Sierra SLT | |
| 1994 | Chevrolet | C1500 | ||
| 1995 | Chevrolet | C1500 | ||
| 1996 | Chevrolet | C1500 | ||
| 1997 | Chevrolet | C1500 | ||
| 1994 | GMC | C1500 | Sierra SL | |
| 1995 | GMC | C1500 | Sierra SL | |
| 1996 | GMC | C1500 | Sierra SL | |
| 1997 | GMC | C1500 | Sierra SL | |
| 1998 | GMC | C1500 | Sierra SL | |
| 1999 | GMC | C1500 | Sierra SL | |
| 1994 | GMC | C2500 | Sierra SL | |
| 1995 | GMC | C2500 | Sierra SL | |
| 1996 | GMC | C2500 | Sierra SL | |
| 1997 | GMC | C2500 | Sierra SL | |
| 1998 | GMC | C2500 | Sierra SL | |
| 1994 | GMC | K2500 | Sierra SL | |
| 1995 | GMC | K2500 | Sierra SL | |
| 1996 | GMC | K2500 | Sierra SL | |
| 1997 | GMC | K2500 | Sierra SL | |
| 1998 | GMC | K2500 | Sierra SL | |
| 1994 | GMC | K1500 | Sierra SL | |
| 1995 | GMC | K1500 | Sierra SL | |
| 1996 | GMC | K1500 | Sierra SL | |
| 1997 | GMC | K1500 | Sierra SL | |
| 1998 | GMC | K1500 | Sierra SL | |
| 1999 | GMC | K1500 | Sierra SL | |
| 1994 | GMC | C1500 | Sierra SLE | |
| 1995 | GMC | C1500 | Sierra SLE | |
| 1996 | GMC | C1500 | Sierra SLE | |
| 1997 | GMC | C1500 | Sierra SLE | |
| 1998 | GMC | C1500 | Sierra SLE | |
| 1999 | GMC | C1500 | Sierra SLE | |
| 1994 | Chevrolet | K2500 | ||
| 1995 | Chevrolet | K2500 | ||
| 1996 | Chevrolet | K2500 | ||
| 1997 | Chevrolet | K2500 | ||
| 1994 | Chevrolet | Blazer | ||
| 1994 | GMC | C1500 | Sierra SLT | |
| 1995 | GMC | C1500 | Sierra SLT | |
| 1996 | GMC | C1500 | Sierra SLT | |
| 1997 | GMC | C1500 | Sierra SLT | |
| 1998 | GMC | C1500 | Sierra SLT | |
| 1999 | GMC | C1500 | Sierra SLT | |
| 1994 | GMC | K2500 | Sierra SLT | |
| 1995 | GMC | K2500 | Sierra SLT | |
| 1996 | GMC | K2500 | Sierra SLT | |
| 1997 | GMC | K2500 | Sierra SLT | |
| 1998 | GMC | K2500 | Sierra SLT | |
| 1994 | GMC | C2500 | Sierra SLT | |
| 1995 | GMC | C2500 | Sierra SLT | |
| 1996 | GMC | C2500 | Sierra SLT | |
| 1997 | GMC | C2500 | Sierra SLT | |
| 1998 | GMC | C2500 | Sierra SLT | |
| 1994 | Chevrolet | C2500 | ||
| 1995 | Chevrolet | C2500 | ||
| 1996 | Chevrolet | C2500 | ||
| 1997 | Chevrolet | C2500 | ||
| 1994 | Chevrolet | K1500 | Cheyenne | |
| 1995 | Chevrolet | K1500 | Cheyenne | |
| 1996 | Chevrolet | K1500 | Cheyenne | |
| 1997 | Chevrolet | K1500 | Cheyenne | |
| 1998 | Chevrolet | K1500 | Cheyenne | |
| 1994 | Chevrolet | K1500 | ||
| 1995 | Chevrolet | K1500 | ||
| 1996 | Chevrolet | K1500 | ||
| 1997 | Chevrolet | K1500 | ||
| 1994 | Chevrolet | C1500 | Cheyenne | |
| 1995 | Chevrolet | C1500 | Cheyenne | |
| 1996 | Chevrolet | C1500 | Cheyenne | |
| 1997 | Chevrolet | C1500 | Cheyenne | |
| 1998 | Chevrolet | C1500 | Cheyenne | |
| 1994 | GMC | C1500 | Sierra Special | |
| 1995 | GMC | C1500 | Sierra Special | |
| 1996 | GMC | C1500 | Sierra Special | |
| 1997 | GMC | C1500 | Sierra Special | |
| 1998 | GMC | C1500 | Sierra Special | |
| 1994 | Chevrolet | C2500 | WT | |
| 1995 | Chevrolet | C2500 | WT | |
| 1994 | Chevrolet | C1500 | Silverado | |
| 1995 | Chevrolet | C1500 | Silverado | |
| 1996 | Chevrolet | C1500 | Silverado | |
| 1997 | Chevrolet | C1500 | Silverado | |
| 1998 | Chevrolet | C1500 | Silverado | |
| 1994 | Chevrolet | K2500 | WT | |
| 1995 | Chevrolet | K2500 | WT | |
| 1994 | Chevrolet | K1500 | WT | |
| 1995 | Chevrolet | K1500 | WT | |
| 1996 | Chevrolet | K1500 | WT | |
| 1997 | Chevrolet | K1500 | WT | |
| 1998 | Chevrolet | K1500 | WT | |
| 1994 | GMC | K1500 | Sierra SLE | |
| 1995 | GMC | K1500 | Sierra SLE | |
| 1996 | GMC | K1500 | Sierra SLE | |
| 1997 | GMC | K1500 | Sierra SLE | |
| 1998 | GMC | K1500 | Sierra SLE | |
| 1999 | GMC | K1500 | Sierra SLE | |
| 1994 | Chevrolet | K1500 | Silverado | |
| 1995 | Chevrolet | K1500 | Silverado | |
| 1996 | Chevrolet | K1500 | Silverado | |
| 1997 | Chevrolet | K1500 | Silverado | |
| 1998 | Chevrolet | K1500 | Silverado | |
| 1994 | Chevrolet | Blazer | Silverado Sport | |
| 1994 | GMC | K1500 | Sierra Special | |
| 1995 | GMC | K1500 | Sierra Special | |
| 1996 | GMC | K1500 | Sierra Special | |
| 1997 | GMC | K1500 | Sierra Special | |
| 1998 | GMC | K1500 | Sierra Special | |
| 1995 | GMC | Yukon | SLE | |
| 1995 | GMC | Yukon | SLT | |
| 1995 | GMC | K1500 | Sierra SLS | |
| 1995 | GMC | Yukon | ||
| 1995 | Chevrolet | Tahoe | LT | |
| 1995 | Chevrolet | Tahoe | LS | |
| 1995 | Chevrolet | Tahoe | ||
| 1997 | GMC | C1500 | Sierra GT | |
| 1998 | Chevrolet | Tahoe | LT | |
| 1999 | Chevrolet | Tahoe | LT | |
| 1998 | Chevrolet | Tahoe | LS | |
| 1999 | Chevrolet | Tahoe | LS | |
| 1998 | GMC | Yukon | SLT | |
| 1999 | GMC | Yukon | SLT | |
| 1998 | GMC | Yukon | SLE | |
| 1999 | GMC | Yukon | SLE | |
| 1998 | Chevrolet | K2500 | WT | |
| 1998 | Chevrolet | Tahoe | ||
| 1999 | Chevrolet | Tahoe | ||
| 1998 | Chevrolet | C2500 | WT | |
| 1999 | Chevrolet | C1500 | LS | |
| 1999 | Chevrolet | K1500 | LS | |
| 2000 | Ford | Excursion | XLT | |
| 2001 | Ford | Excursion | XLT | |
| 2002 | Ford | Excursion | XLT | |
| 2003 | Ford | Excursion | XLT | |
| 2004 | Ford | Excursion | XLT | |
| 2005 | Ford | Excursion | XLT | |
| 2000 | Ford | Excursion | Limited | |
| 2001 | Ford | Excursion | Limited | |
| 2002 | Ford | Excursion | Limited | |
| 2003 | Ford | Excursion | Limited | |
| 2004 | Ford | Excursion | Limited | |
| 2005 | Ford | Excursion | Limited | |
| 2003 | Ford | Excursion | Eddie Bauer | |
| 2004 | Ford | Excursion | Eddie Bauer | |
| 2005 | Ford | Excursion | Eddie Bauer | |
| 2004 | Dodge | Durango | ST | |
| 2005 | Dodge | Durango | ST | |
| 2004 | Ford | Excursion | XLS | |
| 2004 | Dodge | Durango | Limited | |
| 2005 | Dodge | Durango | Limited | |
| 2006 | Dodge | Durango | Limited | |
| 2007 | Dodge | Durango | Limited | |
| 2008 | Dodge | Durango | Limited | |
| 2009 | Dodge | Durango | Limited | |
| 2004 | Dodge | Durango | SLT | |
| 2005 | Dodge | Durango | SLT | |
| 2006 | Dodge | Durango | SLT | |
| 2007 | Dodge | Durango | SLT | |
| 2008 | Dodge | Durango | SLT | |
| 2009 | Dodge | Durango | SLT | |
| 2005 | Chrysler | 300 | C SRT8 | |
| 2006 | Chrysler | 300 | C SRT8 | |
| 2007 | Chrysler | 300 | C SRT8 | |
| 2008 | Chrysler | 300 | C SRT8 | |
| 2009 | Chrysler | 300 | C SRT8 | |
| 2010 | Chrysler | 300 | C SRT8 | |
| 2005 | Ford | F-350 Super Duty | XL | |
| 2006 | Ford | F-350 Super Duty | XL | |
| 2007 | Ford | F-350 Super Duty | XL | |
| 2005 | Ford | F-250 Super Duty | XL | |
| 2006 | Ford | F-250 Super Duty | XL | |
| 2007 | Ford | F-250 Super Duty | XL | |
| 2005 | Ford | F-250 Super Duty | XLT | |
| 2006 | Ford | F-250 Super Duty | XLT | |
| 2007 | Ford | F-250 Super Duty | XLT | |
| 2005 | Dodge | Durango | SXT | |
| 2006 | Dodge | Durango | SXT | |
| 2007 | Dodge | Durango | SXT | |
| 2008 | Dodge | Durango | SXT | |
| 2005 | Ford | F-350 Super Duty | XLT | |
| 2006 | Ford | F-350 Super Duty | XLT | |
| 2007 | Ford | F-350 Super Duty | XLT | |
| 2005 | Ford | F-350 Super Duty | Lariat | |
| 2006 | Ford | F-350 Super Duty | Lariat | |
| 2007 | Ford | F-350 Super Duty | Lariat | |
| 2005 | Ford | F-350 Super Duty | King Ranch | |
| 2006 | Ford | F-350 Super Duty | King Ranch | |
| 2007 | Ford | F-350 Super Duty | King Ranch | |
| 2005 | Ford | F-250 Super Duty | King Ranch | |
| 2006 | Ford | F-250 Super Duty | King Ranch | |
| 2007 | Ford | F-250 Super Duty | King Ranch | |
| 2005 | Ford | F-250 Super Duty | Harley-Davidson Edition | |
| 2005 | Ford | F-350 Super Duty | Harley-Davidson Edition | |
| 2005 | Ford | F-250 Super Duty | Lariat | |
| 2006 | Ford | F-250 Super Duty | Lariat | |
| 2007 | Ford | F-250 Super Duty | Lariat | |
| 2006 | Dodge | Durango | Adventurer | |
| 2007 | Dodge | Durango | Adventurer | |
| 2008 | Dodge | Durango | Adventurer | |
| 2006 | Dodge | Charger | SRT8 | |
| 2007 | Dodge | Charger | SRT8 | |
| 2008 | Dodge | Charger | SRT8 | |
| 2009 | Dodge | Charger | SRT8 | |
| 2010 | Dodge | Charger | SRT8 | |
| 2006 | Dodge | Magnum | SRT8 | |
| 2007 | Dodge | Magnum | SRT8 | |
| 2008 | Dodge | Magnum | SRT8 | |
| 2007 | Dodge | Ram 1500 | TRX4 | |
| 2007 | Dodge | Ram 1500 | SLT | |
| 2008 | Dodge | Ram 1500 | SLT | |
| 2009 | Dodge | Ram 1500 | SLT | |
| 2010 | Dodge | Ram 1500 | SLT | |
| 2007 | Dodge | Ram 1500 | ST | |
| 2008 | Dodge | Ram 1500 | ST | |
| 2009 | Dodge | Ram 1500 | ST | |
| 2010 | Dodge | Ram 1500 | ST | |
| 2007 | Chrysler | Aspen | Limited | |
| 2008 | Chrysler | Aspen | Limited | |
| 2009 | Chrysler | Aspen | Limited | |
| 2008 | Dodge | Challenger | SRT8 | |
| 2009 | Dodge | Challenger | SRT8 | |
| 2010 | Dodge | Challenger | SRT8 | |
| 2011 | Dodge | Challenger | SRT8 | |
| 2012 | Dodge | Challenger | SRT8 | |
| 2013 | Dodge | Challenger | SRT8 | |
| 2008 | Dodge | Ram 1500 | SXT | |
| 2009 | Dodge | Ram 1500 | TRX4 | |
| 2010 | Dodge | Ram 1500 | TRX4 | |
| 2009 | Dodge | Ram 1500 | TRX | |
| 2010 | Dodge | Ram 1500 | TRX | |
| 2011 | Ford | Mustang | GT | |
| 2012 | Ford | Mustang | GT | |
| 2013 | Ford | Mustang | GT | |
| 2012 | Chrysler | 300 | SRT8 | |
| 2013 | Chrysler | 300 | SRT8 | |
| 2012 | Ford | Mustang | Boss 302 | |
| 2013 | Ford | Mustang | Boss 302 | |
| 2012 | Dodge | Charger | SRT8 | |
| 2013 | Dodge | Charger | SRT8 |