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 Quiet-Flow Exhaust Muffler for 1984-1987 Honda Civic 1.3L 1.5L L4Special Price $71.26 Regular Price $101.99
- Walker Quiet-Flow Exhaust Muffler for 1977-1978 Pontiac Grand Safari 6.6L V8Special Price $99.69 Regular Price $141.99
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- Walker Quiet-Flow Right Exhaust Muffler for 1967-1981 Pontiac Firebird 3.8L 4.1L 4.9L 5.0L 5.3L 5.7L 6.6L L6 V8Special Price $63.46 Regular Price $90.99
- Walker Quiet-Flow Left Exhaust Muffler for 1977-1981 Chevrolet Camaro 5.0L 5.7L V8Special Price $63.46 Regular Price $90.99
- Walker Quiet-Flow Right Exhaust Muffler for 1977-1981 Chevrolet Camaro 5.0L 5.7L V8Special Price $63.46 Regular Price $90.99
- Walker Quiet-Flow Left Exhaust Muffler for 1967-1981 Pontiac Firebird 3.8L 4.1L 4.9L 5.0L 5.3L 5.7L 6.6L L6 V8Special Price $64.76 Regular Price $92.99
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- Walker Quiet-Flow Exhaust Muffler for 2010-2015 GMC Terrain 3.0L 3.6L V6Special Price $69.87 Regular Price $99.99
- Walker Quiet-Flow Exhaust Muffler for 2010-2015 Chevrolet Equinox 3.0L 3.6L V6Special Price $69.87 Regular Price $99.99
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- Walker Quiet-Flow Exhaust Muffler for 1958-1964 Chevrolet Biscayne 3.8L 3.9L 4.6L 5.3L 5.7L 6.7L L6 V8Special Price $89.60 Regular Price $127.99
- Walker Quiet-Flow Exhaust Muffler for 1963 Chevrolet C10 Pickup 3.8L 4.6L L6 V8Special Price $89.60 Regular Price $127.99
- Walker Quiet-Flow Exhaust Muffler for 1959-1960 Chevrolet El Camino 4.6L 5.7L V8Special Price $89.60 Regular Price $127.99
- Walker Quiet-Flow Exhaust Muffler for 1955-1964 Chevrolet Bel Air 3.8L 3.9L 4.3L 4.6L 5.3L 5.7L 6.7L 7.0L L6 V8Special Price $89.60 Regular Price $127.99
- Walker Quiet-Flow Exhaust Muffler for 1958-1964 Chevrolet Impala 3.8L 4.6L 5.3L 5.4L 5.7L 6.7L 7.0L L6 V8Special Price $91.43 Regular Price $130.99
- Walker Quiet-Flow Exhaust Muffler for 1987-1991 GMC G1500 5.7L V8Special Price $96.84 Regular Price $137.99
- Walker Quiet-Flow Exhaust Muffler for 1987-1991 GMC G3500 4.3L 5.7L V6 V8Special Price $96.84 Regular Price $137.99
- Walker Quiet-Flow Exhaust Muffler for 1987-1991 Chevrolet G10 5.7L V8Special Price $96.84 Regular Price $137.99
- Walker Quiet-Flow Exhaust Muffler for 1987-1991 Chevrolet Blazer 5.7L V8Special Price $96.84 Regular Price $137.99
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- Walker Quiet-Flow Exhaust Muffler for 1985-1990 Chevrolet Celebrity 2.8L 3.1L V6Special Price $99.69 Regular Price $141.99
- Walker Quiet-Flow Exhaust Muffler for 1977-1987 Cadillac DeVille 4.1L 6.0L 7.0L V8Special Price $99.69 Regular Price $141.99
- Walker Quiet-Flow Exhaust Muffler for 1982-1984 Chevrolet Impala 5.7L V8Special Price $99.69 Regular Price $141.99
- Walker Quiet-Flow Exhaust Muffler for 1984-1995 Buick Century 2.2L 2.8L 3.1L 3.3L 3.8L L4 V6Special Price $99.69 Regular Price $141.99
- Walker Quiet-Flow Exhaust Muffler for 1993-1997 Pontiac Firebird 3.4L 3.8L V6Special Price $101.73 Regular Price $144.99
- Walker Quiet-Flow Exhaust Muffler for 1981 Pontiac Laurentian 5.0L V8Special Price $101.73 Regular Price $144.99
- Walker Quiet-Flow Exhaust Muffler for 1977-1990 Oldsmobile Custom Cruiser 5.0L 5.7L 6.6L V8Special Price $101.73 Regular Price $144.99
- Walker Quiet-Flow Exhaust Muffler for 1977-1991 Buick LeSabre 3.0L 3.8L 5.0L 5.7L 6.6L V6 V8Special Price $101.73 Regular Price $144.99
- Walker Quiet-Flow Exhaust Muffler for 1987-1990 Cadillac Brougham 5.0L V8Special Price $101.73 Regular Price $144.99
- Walker Quiet-Flow Exhaust Muffler for 1984-1995 Oldsmobile Cutlass Ciera 2.2L 3.1L 3.3L 3.8L L4 V6Special Price $101.73 Regular Price $144.99
- Walker Quiet-Flow Exhaust Muffler for 1977-1978 Buick Riviera 6.6L V8Special Price $101.73 Regular Price $144.99
- Walker Quiet-Flow Exhaust Muffler for 1987-1994 Oldsmobile Cutlass Cruiser 2.8L 3.1L 3.3L 3.8L V6Special Price $101.73 Regular Price $144.99
- 2 pc Walker Quiet-Flow Exhaust Mufflers for 1978-1979 Pontiac Firebird 6.6L V8Special Price $114.81 Regular Price $163.99
