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 To Y-Pipe Exhaust Pipe Flange Gasket for 2004-2016 Toyota Sienna 3.3L 3.5L V6Special Price $3.09 Regular Price $4.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1979-1981 GMC P3500 5.7L V8Special Price $3.95 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1967-1970 Mercury Marauder 6.4L 7.0L V8Special Price $3.71 Regular Price $5.99
- Walker Muffler Exhaust System Insulator for 1998-2002 Ford E-150 Econoline Club Wagon 5.4L V8Special Price $9.43 Regular Price $13.99
- 2 pc Walker Muffler Exhaust System Insulators for 1993-1997 Geo Prizm 1.6L 1.8L L4Special Price $10.82 Regular Price $15.99
- 2 pc Walker Muffler Exhaust System Insulators for 2013-2016 Hyundai Santa Fe Sport 2.4L L4Special Price $10.43 Regular Price $15.99
- 2 pc Walker Muffler Exhaust System Insulators for 1997-2001 Toyota Camry 2.2L 3.0L L4 V6Special Price $10.43 Regular Price $15.99
- 2 pc Walker Muffler Exhaust System Insulators for 2004-2008 Chevrolet Malibu 2.2L 3.5L L4 V6Special Price $10.82 Regular Price $15.99
- 2 pc Walker Muffler Exhaust System Insulators for 1993-1997 Toyota Corolla 1.6L 1.8L L4Special Price $10.43 Regular Price $15.99
- 2 pc Walker Muffler Exhaust System Insulators for 2007-2010 Pontiac G5 2.2L 2.4L L4Special Price $10.43 Regular Price $15.99
- 3 pc Walker Muffler Exhaust System Insulators for 2009-2014 Nissan Cube 1.8L L4Special Price $16.69 Regular Price $24.99
- 2 pc Walker Muffler Exhaust Muffler Straps for 1987 Ford E-250 Econoline 5.8L V8Special Price $28.33 Regular Price $42.99
- Walker Front Pipe To Y-Pipe Exhaust Pipe Flange Gasket for 1989-1995 Nissan Pathfinder 3.0L V6Special Price $2.98 Regular Price $4.99
- Walker Front Pipe To Y-Pipe Exhaust Pipe Flange Gasket for 2004-2006 Lexus RX330 3.3L V6Special Price $3.09 Regular Price $4.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1972-1973 Mercury Montego 5.8L 6.6L V8Special Price $3.43 Regular Price $4.99
- Walker Front Pipe To Y-Pipe Exhaust Pipe Flange Gasket for 2010-2015 Lexus RX350 3.5L V6Special Price $3.32 Regular Price $4.99
- Walker Front Pipe To Y-Pipe Exhaust Pipe Flange Gasket for 2004-2016 Toyota Highlander 3.3L 3.5L V6Special Price $3.32 Regular Price $4.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1969-1973 Ford Custom 500 5.0L 5.8L 6.4L 6.6L 7.0L V8Special Price $3.71 Regular Price $4.99
- Walker Muffler Exhaust System Insulator for 1996 Pontiac Trans Sport 3.4L V6Special Price $3.82 Regular Price $3.92
- Walker Muffler Exhaust System Insulator for 1996 Chevrolet Lumina APV 3.4L V6Special Price $3.82 Regular Price $3.92
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1968 Ford Custom 5.0L 6.4L 7.0L V8Special Price $3.67 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1968 Ford Galaxie 500 5.0L 6.4L 7.0L V8Special Price $3.43 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1967-1974 Mercury Monterey 6.4L 6.6L 7.0L 7.5L V8Special Price $3.71 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1969-1973 Ford LTD 5.0L 5.8L 6.4L 6.6L 7.0L V8Special Price $3.71 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1969-1973 Ford Galaxie 500 5.0L 5.8L 6.6L V8Special Price $3.71 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1969-1972 Ford Custom 5.0L 5.8L 6.4L 6.6L 7.0L V8Special Price $3.95 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1975-1981 Chevrolet P30 5.7L V8Special Price $3.95 Regular Price $5.99
- Walker Muffler Exhaust System Insulator for 1995-1997 Honda Accord 2.7L V6Special Price $3.82 Regular Price $5.99
- Walker Muffler Exhaust System Insulator for 1992-1996 Honda Prelude 2.2L 2.3L L4Special Price $3.82 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1968-1974 Mercury Marquis 6.4L 6.6L 7.0L 7.5L V8Special Price $3.71 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1975-1978 GMC P35 5.7L V8Special Price $3.71 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1979-1981 GMC P2500 5.7L V8Special Price $3.95 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1967-1968 Mercury Commuter 6.4L 7.0L V8Special Price $3.71 Regular Price $5.99
- Walker Front Pipe To Y-Pipe Exhaust Clamp for 1975-1978 GMC P25 5.7L V8Special Price $3.71 Regular Price $5.99