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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- 2 pc Walker Muffler Assm Exhaust System Insulators for 1990-1992 Mitsubishi Precis 1.5L L4Special Price $16.44 Regular Price $22.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 1994-1999 Volkswagen Jetta 2.8L V6Special Price $16.44 Regular Price $22.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 1990-1991 Volkswagen Corrado 1.8L L4Special Price $16.44 Regular Price $22.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2003-2009 Dodge Ram 2500 5.7L V8Special Price $16.44 Regular Price $22.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 1989-1992 Eagle Summit 1.5L L4Special Price $16.44 Regular Price $22.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 1987-1990 Toyota Tercel 1.5L L4Special Price $16.44 Regular Price $22.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 1999-2003 Dodge Dakota 2.5L 3.9L L4 V6Special Price $16.44 Regular Price $22.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2007-2017 Jeep Compass 2.0L 2.4L L4Special Price $16.44 Regular Price $22.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 2002-2004 Infiniti I35 3.5L V6Special Price $16.82 Regular Price $23.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 2000-2005 Hyundai Accent 1.5L 1.6L L4Special Price $16.82 Regular Price $23.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 2007-2009 Lexus RX350 3.5L V6Special Price $16.82 Regular Price $23.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 2006-2010 Mazda 5 2.3L L4Special Price $16.82 Regular Price $23.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 1987-1989 Toyota Celica 2.0L L4Special Price $16.82 Regular Price $23.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 1999-2001 Nissan Maxima 3.0L V6Special Price $16.82 Regular Price $23.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 2004-2006 Lexus RX330 3.3L V6Special Price $16.82 Regular Price $23.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 2014-2017 Nissan Versa Note 1.6L L4Special Price $16.82 Regular Price $23.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 2007-2012 Nissan Sentra 2.0L L4Special Price $16.82 Regular Price $23.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 2006-2007 Subaru Impreza 2.5L H4Special Price $16.82 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2007-2008 Honda Fit 1.5L L4Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2000-2005 Ford Excursion 5.4L 6.8L V10 V8Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 1988-1989 Toyota Van 2.2L L4Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2007-2011 Jeep Wrangler 3.8L V6Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2001-2007 Dodge Caravan 2.4L 3.3L L4 V6Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2002-2006 Honda CR-V 2.4L L4Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2001-2007 Dodge Grand Caravan 3.3L 3.8L V6Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2001-2003 Chrysler Voyager 2.4L 3.3L L4 V6Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 1990-1994 Hyundai Excel 1.5L L4Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 1994-1998 Hyundai Sonata 3.0L V6Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2002-2005 Honda Civic 2.0L L4Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2001-2007 Chrysler Town & Country 3.3L 3.8L V6Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2013-2018 Toyota RAV4 2.5L L4Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2009-2010 Mercury Mariner 2.5L L4Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 1988 Toyota Van Wagon 2.2L L4Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2013-2018 Buick Encore 1.4L L4Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2014 Nissan Rogue Select 2.5L L4Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2012-2015 Chevrolet Captiva Sport 2.4L L4Special Price $16.95 Regular Price $23.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2007-2012 Dodge Caliber 1.8L 2.0L 2.4L L4Special Price $16.95 Regular Price $23.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 2008-2012 Chevrolet Malibu 3.6L V6Special Price $17.33 Regular Price $24.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 2000-2004 Subaru Outback 2.5L 3.0L H4 H6Special Price $17.33 Regular Price $24.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 2005-2015 Toyota Tacoma 4.0L V6Special Price $17.33 Regular Price $24.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 1998-2008 Subaru Forester 2.5L H4Special Price $17.33 Regular Price $24.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 2000-2004 Subaru Legacy 2.5L H4Special Price $17.33 Regular Price $24.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 2007-2017 Toyota Tundra 4.0L 4.6L 4.7L 5.7L V6 V8Special Price $17.33 Regular Price $24.99
- 3 pc Walker Muffler Assm Exhaust System Insulators for 2004-2013 Toyota Highlander 2.4L 3.3L 3.5L L4 V6Special Price $17.33 Regular Price $24.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 2010-2016 Cadillac SRX 3.0L 3.6L V6Special Price $19.94 Regular Price $27.99
- 2 pc Walker Muffler Assm Exhaust System Insulators for 1999-2005 Pontiac Grand Am 2.2L 2.4L 3.4L L4 V6Special Price $19.94 Regular Price $27.99