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 Converter To Muffler Assm Exhaust Clamp for 2009-2011 Mercury Mariner 2.5L L4Special Price $3.99 Regular Price $5.99
- Walker Int Pipe Exhaust System Insulator for 1983-1985 Toyota Celica 2.4L 2.8L L4 L6Special Price $5.26 Regular Price $7.99
- Walker Int Pipe Exhaust System Insulator for 1992-1995 Chevrolet K1500 Suburban 5.7L V8Special Price $9.51 Regular Price $13.99
- Walker Int Pipe Exhaust System Hanger for 1978 GMC C15 5.0L 5.7L V8Special Price $9.78 Regular Price $13.99
- Walker Int Pipe Exhaust System Insulator for 2002-2006 Chevrolet Avalanche 1500 5.3L V8Special Price $9.87 Regular Price $13.99
- Walker Converter To Muffler Assm Exhaust Pipe Flange Gasket for 1994 Hyundai Excel 1.5L L4Special Price $3.09 Regular Price $3.99
- Walker Converter To Muffler Assm Exhaust Clamp for 2004-2007 Toyota Highlander 2.4L L4Special Price $3.99 Regular Price $5.99
- Walker Converter To Muffler Assm Exhaust Clamp for 2008-2010 Dodge Grand Caravan 3.3L 3.8L V6Special Price $4.23 Regular Price $5.99
- Walker Converter To Muffler Assm Exhaust Clamp for 1998 Jeep Grand Cherokee 5.9L V8Special Price $4.25 Regular Price $5.99
- Walker Converter To Muffler Assm Exhaust Clamp for 2009-2010 Volkswagen Routan 3.8L V6Special Price $4.49 Regular Price $5.99
- Walker Converter To Muffler Assm Exhaust Clamp for 2002-2003 Dodge Ram 1500 4.7L V8Special Price $4.49 Regular Price $5.99
- Walker Converter To Muffler Assm Exhaust Clamp for 2008-2010 Chrysler Town & Country 3.3L 3.8L V6Special Price $4.49 Regular Price $5.99
- Walker Converter To Muffler Assm Exhaust Pipe Flange Gasket for 1990-1995 Nissan Pathfinder 3.0L V6Special Price $4.79 Regular Price $6.99
- 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 2013-2015 Subaru XV Crosstrek 2.0L H4Special 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 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
- Walker Int Pipe Exhaust System Insulator for 1988-1992 Daihatsu Charade 1.0L 1.3L L3 L4Special Price $4.99 Regular Price $6.99
- Walker Int Pipe Exhaust System Insulator for 2007-2010 Pontiac G6 3.5L 3.6L V6Special Price $5.26 Regular Price $7.99
- Walker Int Pipe Exhaust System Insulator for 2005-2008 Toyota Matrix 1.8L L4Special Price $5.26 Regular Price $7.99
- Walker Int Pipe Exhaust System Insulator for 2012-2016 Subaru Impreza 2.0L H4Special Price $5.26 Regular Price $7.99
- Walker Int Pipe Exhaust System Insulator for 2013-2018 Buick Encore 1.4L L4Special Price $5.26 Regular Price $7.99
- Walker Int Pipe Exhaust System Insulator for 1990 Nissan Axxess 2.4L L4Special Price $5.26 Regular Price $7.99
- Walker Int Pipe Exhaust System Insulator for 2010-2012 Subaru Outback 2.5L H4Special Price $5.26 Regular Price $7.99
- Walker Converter To Muffler Assm Exhaust Pipe Flange Gasket for 1996-2000 Toyota 4Runner 2.7L L4Special Price $6.32 Regular Price $8.99
- Walker Converter To Muffler Assm Exhaust Pipe Flange Gasket for 2000-2005 Honda S2000 2.0L 2.2L L4Special Price $6.82 Regular Price $9.99