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 Int Pipe Exhaust System Insulator for 2012-2016 Subaru Impreza 2.0L H4Special Price $5.26 Regular Price $7.99
- 2 pc Walker Int Pipe Exhaust System Insulators for 2004-2008 Chevrolet Malibu 2.2L 3.5L L4 V6Special Price $10.91 Regular Price $15.99
- 2 pc Walker Int Pipe Exhaust System Insulators for 1987-1990 Dodge Colt 1.5L 1.6L L4Special Price $10.91 Regular Price $15.99
- Walker Resonator Assm To Int Pipe Exhaust Pipe Flange Gasket for 2006-2010 Hyundai Azera 3.3L 3.8L V6Special Price $2.56 Regular Price $3.99
- Walker Resonator Assm To Int Pipe Exhaust Pipe Flange Gasket for 2006-2008 Hyundai Sonata 3.3L V6Special Price $2.56 Regular Price $3.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 1988 Toyota Van Wagon 2.2L L4Special Price $3.34 Regular Price $4.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 1997-2004 Buick Regal 3.8L V6Special Price $3.71 Regular Price $4.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2004-2012 Chevrolet Malibu 2.2L 2.4L 3.5L L4 V6Special Price $3.71 Regular Price $4.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2011-2012 Lincoln MKZ 2.5L L4Special Price $3.99 Regular Price $5.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2006-2012 Ford Fusion 2.3L 2.5L 3.0L L4 V6Special Price $3.99 Regular Price $5.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2006-2011 Mercury Milan 2.3L 2.5L 3.0L L4 V6Special Price $3.99 Regular Price $5.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 1992-1996 Toyota Camry 2.2L L4Special Price $3.99 Regular Price $5.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2005-2009 Buick LaCrosse 3.8L V6Special Price $3.99 Regular Price $5.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2005-2008 Pontiac Grand Prix 3.8L V6Special Price $3.99 Regular Price $5.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2006-2011 Chevrolet Impala 3.5L V6Special Price $4.25 Regular Price $5.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2008-2009 Pontiac G6 2.4L L4Special Price $4.25 Regular Price $5.99
- Walker Resonator Assm To Int Pipe Exhaust Clamp for 2014-2016 Chevrolet Impala Limited 3.6L V6Special Price $4.49 Regular Price $5.99
- Walker Int Pipe Exhaust System Insulator for 2001-2006 Kia Optima 2.4L 2.5L 2.7L L4 V6Special Price $4.99 Regular Price $6.99
- Walker Int Pipe Exhaust System Insulator for 2008-2012 Chevrolet Malibu 2.4L 3.5L 3.6L L4 V6Special Price $4.99 Regular Price $6.99
- Walker Int Pipe Exhaust System Insulator for 2013-2015 Subaru XV Crosstrek 2.0L H4Special Price $4.99 Regular Price $6.99
- Walker Int Pipe Exhaust System Insulator for 2001-2005 Kia Magentis 2.4L 2.5L 2.7L L4 V6Special Price $4.99 Regular Price $6.99
- Walker Int Pipe Exhaust System Insulator for 2016 Subaru Crosstrek 2.0L H4Special Price $4.99 Regular Price $6.99