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 H-Pipe Exhaust System Insulator for 1996-2000 Chevrolet Tahoe 5.7L V8Special Price $9.51 Regular Price $13.99
- Walker Resonator Assm To Y-Pipe Rear Exhaust Clamp for 2007-2008 GMC Acadia 3.6L V6Special Price $3.99 Regular Price $5.99
- Walker Resonator Assm To Y-Pipe Rear Exhaust Clamp for 2007-2008 Saturn Outlook 3.6L V6Special Price $4.25 Regular Price $5.99
- Walker H-Pipe Exhaust System Insulator for 1996-1999 Chevrolet C1500 5.7L V8Special Price $9.51 Regular Price $13.99
- Walker H-Pipe Exhaust System Insulator for 1996-1999 GMC K1500 5.7L V8Special Price $9.87 Regular Price $13.99
- Walker H-Pipe Exhaust System Insulator for 1999-2000 Cadillac Escalade 5.7L V8Special Price $9.87 Regular Price $13.99
- Walker H-Pipe Exhaust System Insulator for 1996-1999 GMC C1500 5.7L V8Special Price $9.87 Regular Price $13.99