Emission Control System Components

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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  1. Walker Exhaust Elbow
    Walker 41437 Exhaust Elbow
    Special Price $22.91 Regular Price $32.99
  2. Walker Exhaust Elbow
    Walker 41685 Exhaust Elbow
    Special Price $27.99 Regular Price $39.99
    Out of stock
  3. Walker Exhaust Elbow
    Walker 41769 Exhaust Elbow
    Special Price $52.22 Regular Price $74.99
    Out of stock
  4. Walker Exhaust Elbow
    Walker 41532 Exhaust Elbow
    Special Price $58.05 Regular Price $82.99
    Out of stock
  5. Walker Quiet-Flow Exhaust Muffler Assembly
    Walker Quiet-Flow Exhaust Muffler Assembly for 2006-2011 Honda Civic 1.3L 1.8L L4
    Special Price $159.14 Regular Price $226.99
    Out of stock
  6. Walker Exhaust Elbow
    Walker 41001 Exhaust Elbow
    Special Price $8.43 Regular Price $11.99
    Out of stock
  7. Walker Exhaust Elbow
    Walker 41733 Exhaust Elbow
    Special Price $8.91 Regular Price $12.99
  8. Walker Exhaust Elbow
    Walker 41818 Exhaust Elbow
    Special Price $9.07 Regular Price $12.99
    Out of stock
  9. Walker Exhaust Elbow
    Walker 41816 Exhaust Elbow
    Special Price $10.37 Regular Price $14.99
  10. Walker Exhaust Elbow
    Walker 41000 Exhaust Elbow
    Special Price $11.10 Regular Price $15.99
    Out of stock
  11. Walker Exhaust Elbow
    Walker 41098 Exhaust Elbow
    Special Price $20.50 Regular Price $28.99
  12. Walker Exhaust Elbow
    Walker 41002 Exhaust Elbow
    Special Price $22.62 Regular Price $31.99
    Out of stock
  13. Walker Exhaust Elbow
    Walker 42760 Exhaust Elbow
    Special Price $24.02 Regular Price $33.99
    Out of stock
  14. Walker Exhaust Elbow
    Walker 41365 Exhaust Elbow
    Special Price $26.66 Regular Price $37.99
    Out of stock
  15. Walker Exhaust Elbow
    Walker 41686 Exhaust Elbow
    Special Price $41.50 Regular Price $58.99
    Out of stock
  16. Walker Exhaust Muffler Assembly
    Walker Quiet-Flow 21754 Exhaust Muffler Assembly
    Special Price $101.07 Regular Price $143.99
  17. Walker Exhaust Muffler Assembly
    Walker Quiet-Flow 52492 Exhaust Muffler Assembly
    Special Price $107.28 Regular Price $152.99
  18. Walker Exhaust Muffler Assembly
    Walker Quiet-Flow 54560 Exhaust Muffler Assembly
    Special Price $124.53 Regular Price $177.99
    Out of stock
  19. Walker Exhaust Muffler Assembly
    Walker Quiet-Flow 53720 Exhaust Muffler Assembly
    Special Price $125.53 Regular Price $178.99
    Out of stock
  20. Walker Exhaust Muffler Assembly
    Walker Quiet-Flow 54668 Exhaust Muffler Assembly
    Special Price $126.96 Regular Price $180.99
    Out of stock
  21. Walker Exhaust Muffler Assembly
    Walker Quiet-Flow 54721 Exhaust Muffler Assembly
    Special Price $132.52 Regular Price $188.99
    Out of stock
  22. Walker Exhaust Muffler Assembly
    Walker Quiet-Flow 53847 Exhaust Muffler Assembly
    Special Price $132.78 Regular Price $189.99
    Out of stock
  23. Walker Exhaust Muffler Assembly
    Walker Quiet-Flow 54427 Exhaust Muffler Assembly
    Special Price $137.23 Regular Price $195.99
    Out of stock
  24. Walker Exhaust Muffler Assembly
    Walker Quiet-Flow 53944 Exhaust Muffler Assembly
    Special Price $146.97 Regular Price $209.99
  25. Walker Exhaust Muffler Assembly
    Walker Quiet-Flow 73038 Exhaust Muffler Assembly
    Special Price $148.18 Regular Price $211.99
    Out of stock
  26. Walker Exhaust Muffler Assembly
    Walker Quiet-Flow 54681 Exhaust Muffler Assembly
    Special Price $149.09 Regular Price $212.99
    Out of stock
  27. Walker Quiet-Flow Exhaust Muffler Assembly
    Walker Quiet-Flow Exhaust Muffler Assembly for 2005-2008 Toyota Corolla 1.8L L4
    Special Price $162.25 Regular Price $231.99
    Out of stock
  28. Walker Quiet-Flow Exhaust Muffler Assembly
    Walker Quiet-Flow Exhaust Muffler Assembly for 2004-2009 Toyota Prius 1.5L L4
    Special Price $165.17 Regular Price $235.99
    Out of stock
  29. Walker Quiet-Flow Exhaust Muffler Assembly
    Walker Quiet-Flow Exhaust Muffler Assembly for 2007-2011 Nissan Versa 1.6L 1.8L L4
    Special Price $167.36 Regular Price $238.99
    Out of stock
  30. Walker Quiet-Flow Exhaust Muffler Assembly
    Walker Quiet-Flow Exhaust Muffler Assembly for 2006-2012 Toyota RAV4 3.5L V6
    Special Price $175.13 Regular Price $249.99
    Out of stock
  31. Walker Quiet-Flow Exhaust Muffler Assembly
    Walker Quiet-Flow Exhaust Muffler Assembly for 2002-2006 Honda CR-V 2.4L L4
    Special Price $178.98 Regular Price $255.99
    Out of stock
  32. Walker Quiet-Flow Exhaust Muffler Assembly
    Walker Quiet-Flow Left Exhaust Muffler Assembly for 2016-2018 Ford Explorer 3.5L V6
    Special Price $190.68 Regular Price $271.99
    Out of stock
  33. Walker Exhaust Muffler Assembly
    Walker Quiet-Flow 21834 Exhaust Muffler Assembly
    Special Price $369.53 Regular Price $527.99
  34. Walker Quiet-Flow Exhaust Muffler Assembly
    Walker Quiet-Flow Exhaust Muffler Assembly for 2016 Chevrolet Malibu Limited 2.5L L4
    Special Price $436.25 Regular Price $622.99
  35. Walker Quiet-Flow Exhaust Muffler Assembly
    Walker Quiet-Flow Left Exhaust Muffler Assembly for 2011-2017 Buick Regal 2.4L L4
    Special Price $436.25 Regular Price $622.99
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