Failed an emissions test? This can be down to dozens of reasons but is largely limited to parts in the car Fuel Delivery System. Causes can be as simple as a leaking gas cap, faulty vapor canisters that trap gas vapors in the fuel return lines to damage to the EGR Valves that recirculate exhaust gasses and reduce nitrogen oxides. Increased emissions can also be down to skipping maintenance intervals with regular replacement parts like vehicle Air Filters to deliver oxygen-rich and cleansed air for better engine efficiency, and Engine Oil Filters to filter out contaminants that cause wear.
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- Walker Front Pipe Inlet Front Exhaust Pipe Flange Gasket for 1984-1987 Dodge Colt 2.0L L4Special Price $5.77 Regular Price $7.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 2009-2013 Subaru Forester 2.5L H4Special Price $11.30 Regular Price $15.99
- Walker Front Pipe Inlet Front Exhaust Pipe Flange Gasket for 2009-2011 Mazda Tribute 2.5L L4Special Price $2.25 Regular Price $2.99
- Walker Front Pipe Inlet Front Exhaust Pipe Flange Gasket for 2009-2012 Ford Escape 2.5L L4Special Price $2.25 Regular Price $2.99
- Walker Front Pipe Inlet Front Exhaust Pipe Flange Gasket for 2009-2011 Mercury Mariner 2.5L L4Special Price $2.25 Regular Price $2.99
- Walker Muffler Right Exhaust System Insulator for 2008-2011 Subaru Impreza 2.5L H4Special Price $5.26 Regular Price $7.99
- Walker Muffler Right Exhaust System Insulator for 2009-2013 Subaru Forester 2.5L H4Special Price $5.26 Regular Price $7.99
- Walker Front Pipe Inlet Front Exhaust Pipe Flange Gasket for 1995 Nissan 200SX 1.6L L4Special Price $7.12 Regular Price $9.99
- Walker Muffler Right Exhaust System Insulator for 2007-2012 Lincoln MKZ 3.5L V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Right Exhaust System Insulator for 2003-2008 Pontiac Grand Prix 3.8L V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Right Exhaust System Insulator for 2019 Ford Explorer 3.5L V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Right Exhaust System Insulator for 2003-2008 Hyundai Tiburon 2.0L 2.7L L4 V6Special Price $7.76 Regular Price $10.99
- Walker Muffler Right Exhaust System Insulator for 1992-1995 Ford Taurus 3.8L V6Special Price $8.09 Regular Price $11.99
- Walker Muffler Right Exhaust System Hanger for 1990-1991 GMC K3500 6.2L V8Special Price $9.78 Regular Price $13.99
- Walker Muffler Right Exhaust System Hanger for 1990-1991 Chevrolet V3500 6.2L V8Special Price $9.78 Regular Price $13.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 2008-2010 Subaru Impreza 2.5L H4Special Price $11.30 Regular Price $15.99
- Walker Front Pipe Inlet Front Exhaust Bolt & Spring for 1982-1984 Chevrolet Monte Carlo 5.7L V8Special Price $15.11 Regular Price $21.99
- Walker Front Pipe Inlet Front Exhaust Bolt & Spring for 1981-1984 Pontiac Grand Prix 5.7L V8Special Price $15.11 Regular Price $21.99
- Walker Front Pipe Inlet Front Exhaust Bolt & Spring for 1982-1983 Chevrolet Malibu 5.7L V8Special Price $15.11 Regular Price $21.99
- Walker Front Pipe Inlet Front Exhaust Bolt & Spring for 1982-1983 Buick Regal 5.7L V8Special Price $15.11 Regular Price $21.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 1997-2002 Pontiac Grand Prix 3.8L V6Special Price $16.44 Regular Price $22.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 2000-2005 Chevrolet Monte Carlo 3.8L V6Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 2006-2011 Chevrolet Impala 3.9L 5.3L V6 V8Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Right Exhaust System Insulators for 1991-1992 Chevrolet Lumina 3.4L V6Special Price $20.51 Regular Price $28.99
- 3 pc Walker Muffler Right Exhaust System Insulators for 2009-2010 Dodge Journey 3.5L V6Special Price $25.80 Regular Price $36.99
- 2 pc Walker Front Pipe Inlet Front Exhaust Pipe Flange Gaskets for 1996-2004 Acura RL 3.5L V6Special Price $26.67 Regular Price $37.99