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 Exhaust System Insulator for 2009-2014 Acura TSX 2.4L L4Special Price $6.86 Regular Price $9.99
- Walker Int Pipe Rear To Muffler Exhaust Clamp for 2009 Ford Flex 3.5L V6Special Price $3.99 Regular Price $5.99
- Walker Int Pipe Rear To Muffler Exhaust Clamp for 1997-1998 Ford F-150 4.2L 4.6L 5.4L V6 V8Special Price $4.23 Regular Price $5.99
- Walker Int Pipe Rear To Muffler Exhaust Clamp for 1988-1995 Ford F-350 5.8L 7.5L V8Special Price $4.23 Regular Price $5.99
- Walker Front Pipe Exhaust System Insulator for 2007-2012 Hyundai Elantra 2.0L L4Special Price $4.99 Regular Price $6.99
- 2 pc Walker Front Pipe Exhaust System Insulators for 2011-2013 Kia Sorento 2.4L L4Special Price $10.91 Regular Price $15.99
- 2 pc Walker Front Pipe Exhaust System Insulators for 2012-2019 Kia Soul 1.6L 2.0L L4Special Price $11.30 Regular Price $15.99
- Walker Int Pipe Rear To Muffler Exhaust Clamp for 1985 Cadillac Fleetwood 4.3L V6Special Price $3.71 Regular Price $4.99
- Walker Int Pipe Rear To Muffler Exhaust Clamp for 1985 Cadillac DeVille 4.3L V6Special Price $3.71 Regular Price $4.99
- Walker Int Pipe Rear To Muffler Exhaust Clamp for 1985 Buick Electra 4.3L V6Special Price $3.71 Regular Price $4.99
- Walker Int Pipe Rear To Muffler Exhaust Clamp for 1985 Cadillac Commercial Chassis 4.3L V6Special Price $3.71 Regular Price $4.99
- Walker Int Pipe Rear To Muffler Exhaust Clamp for 1965-1967 Cadillac DeVille 7.0L V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe Exhaust Clamp for 1988-1992 Mazda MX-6 2.2L L4Special Price $3.99 Regular Price $5.99
- Walker Int Pipe Rear To Muffler Exhaust Clamp for 1987-1995 Ford F-250 4.9L 5.0L L6 V8Special Price $3.99 Regular Price $5.99
- Walker Front Pipe Exhaust Clamp for 1988-1992 Mazda 626 2.2L L4Special Price $3.99 Regular Price $5.99
- Walker Int Pipe Rear To Muffler Exhaust Clamp for 1965-1967 Cadillac Fleetwood 7.0L V8Special Price $4.25 Regular Price $5.99
- Walker Front Pipe Exhaust System Insulator for 1992-1996 Honda Prelude 2.2L 2.3L L4Special Price $4.11 Regular Price $4.37
- Walker Int Pipe Rear To Muffler Exhaust Clamp for 1982-1987 GMC P3500 5.7L V8Special Price $4.49 Regular Price $5.99
- Walker Int Pipe Rear To Muffler Exhaust Clamp for 1982-1987 GMC P2500 5.7L V8Special Price $4.49 Regular Price $5.99
- Walker Int Pipe Rear To Muffler Exhaust Clamp for 1982-1987 Chevrolet P20 5.7L V8Special Price $4.49 Regular Price $5.99
- Walker Front Pipe Exhaust System Insulator for 2014-2015 Kia Sorento 2.4L L4Special Price $4.99 Regular Price $6.99
- Walker Front Pipe Exhaust System Insulator for 2006-2017 Hyundai Sonata 2.4L L4Special Price $4.99 Regular Price $6.99
- Walker Front Pipe Exhaust System Insulator for 2009-2016 Kia Optima 2.4L L4Special Price $5.26 Regular Price $7.99
- Walker Front Pipe Exhaust System Insulator for 2013-2016 Hyundai Santa Fe Sport 2.4L L4Special Price $5.26 Regular Price $7.99
- Walker Front Pipe Exhaust System Insulator for 2007-2009 Acura MDX 3.7L V6Special Price $6.56 Regular Price $8.99
- Walker Int Pipe Rear To Muffler Exhaust Clamp for 2005-2007 Ford F-250 Super Duty 5.4L 6.8L V10 V8Special Price $7.12 Regular Price $9.99
- Walker Int Pipe Rear To Muffler Exhaust Clamp for 1992-1996 GMC G3500 5.7L V8Special Price $7.12 Regular Price $9.99
- Walker Int Pipe Rear To Muffler Exhaust Clamp for 1992-1996 Chevrolet G30 5.7L V8Special Price $7.44 Regular Price $10.99
- Walker Front Pipe Exhaust System Insulator for 1990-1991 Eagle Vista 1.5L L4Special Price $7.76 Regular Price $10.99
- Walker Front Pipe Exhaust System Insulator for 1990-1994 Mitsubishi Eclipse 1.8L 2.0L L4Special Price $7.76 Regular Price $10.99
- Walker Front Pipe Exhaust System Insulator for 1991-1993 Eagle 2000 GTX 2.0L L4Special Price $7.76 Regular Price $10.99
- Walker Front Pipe Exhaust System Insulator for 2011-2014 Ford Edge 3.5L V6Special Price $7.76 Regular Price $10.99
- Walker Front Pipe Exhaust System Insulator for 2009-2012 Ford Flex 3.5L V6Special Price $7.76 Regular Price $10.99
- Walker Front Pipe Exhaust System Insulator for 1990-1994 Eagle Talon 1.8L 2.0L L4Special Price $7.76 Regular Price $10.99