Emission controls in older carbureted engines relied on forcing additional air from pumps and valves located just before the exhaust manifold to ensure better burns. This is known as a secondary air injection system, and today has evolved to increase the efficiency of Catalytic Converters. Failed pumps and leaks are common signs of a bad Air Injection System, leading to off air and fuel ratios and poor acceleration. Remember to check the Manifold Gaskets and Seals for wear and tear when examining the exhaust.
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Fel-Pro Exhaust Pipe Flange Gasket for 1993-2012 Nissan Pathfinder 3.0L 4.0L 5.6L V6 V8Special Price $11.64 Regular Price $16.99
- Fel-Pro Exhaust Pipe Flange Gasket for 1987-1992 Nissan Pathfinder 3.0L V6Special Price $12.52 Regular Price $17.99
- Fel-Pro Exhaust Pipe Flange Gasket for 2014-2015 Nissan Pathfinder 2.5L L4Special Price $13.89 Regular Price $19.99
- Walker Converter Rear Left To Front Pipe Exhaust Pipe Flange Gasket for 2005-2012 Nissan Pathfinder 4.0L V6Special Price $9.38 Regular Price $12.99
Out of stock - Walker Converter Rear Right To Muffler Assm Exhaust Pipe Flange Gasket for 2005-2012 Nissan Pathfinder 4.0L V6Special Price $9.38 Regular Price $12.99 Out of stock
- Fel-Pro EGR Valve Gasket for 1987-2000 Nissan Pathfinder 2.4L 3.3L L4 V6Special Price $9.49 Regular Price $13.99
- Fel-Pro EGR Valve Gasket for 1987-1995 Nissan Pathfinder 3.0L V6Special Price $9.49 Regular Price $13.99
- Walker Exhaust Clamp for 1987-1995 Nissan Pathfinder 2.4L 3.0L L4 V6Special Price $9.93 Regular Price $13.99
- Walker Int Pipe Right To Muffler Assm Front Exhaust Clamp for 2001-2004 Nissan Pathfinder 3.5L V6Special Price $9.93 Regular Price $13.99
- Walker Int Pipe Left To Muffler Assm Front Exhaust Clamp for 2001-2004 Nissan Pathfinder 3.5L V6Special Price $9.93 Regular Price $13.99
- Fel-Pro Exhaust Pipe Flange Gasket for 1957-1958 Pontiac Pathfinder 4.3L 4.6L V8Special Price $10.11 Regular Price $13.99
- Walker Exhaust Pipe Flange Gasket for 1987-1995 Nissan Pathfinder 3.0L V6Special Price $10.17 Regular Price $14.99
- Walker Muffler Assm Front To Rear Exhaust Pipe Flange Gasket for 2001-2004 Nissan Pathfinder 3.5L V6Special Price $10.24 Regular Price $14.99 Out of stock
- Walker Converter Front Right To Rear Right Exhaust Pipe Flange Gasket for 2005-2012 Nissan Pathfinder 4.0L V6Special Price $10.24 Regular Price $14.99 Out of stock
- Walker Converter Inlet Front Right Exhaust Pipe Flange Gasket for 2005-2012 Nissan Pathfinder 4.0L V6Special Price $10.24 Regular Price $14.99 Out of stock
- Walker Muffler Assm To Tail Pipe Exhaust Clamp for 2005-2012 Nissan Pathfinder 4.0L V6Special Price $10.30 Regular Price $14.99
- Walker Exhaust Pipe Flange Gasket for 1996-2000 Nissan Pathfinder 3.3L V6Special Price $10.37 Regular Price $14.99
- Walker Front Pipe To Y-Pipe Exhaust Pipe Flange Gasket for 1989-1995 Nissan Pathfinder 3.0L V6Special Price $10.38 Regular Price $14.99
- Walker Converter Front Left To Rear Left Exhaust Pipe Flange Gasket for 2005-2012 Nissan Pathfinder 4.0L V6Special Price $10.45 Regular Price $14.99 Out of stock
- Walker Converter Inlet Front Left Exhaust Pipe Flange Gasket for 2005-2012 Nissan Pathfinder 4.0L V6Special Price $10.45 Regular Price $14.99 Out of stock
- Walker Exhaust Pipe Flange Gasket for 1995 Nissan Pathfinder 3.0L V6Special Price $10.45 Regular Price $14.99 Out of stock
- Walker Muffler To Tail Pipe Exhaust Clamp for 1989-1995 Nissan Pathfinder 3.0L V6Special Price $10.46 Regular Price $14.99
- Walker Front Pipe To Muffler Assm Exhaust Clamp for 2005-2012 Nissan Pathfinder 4.0L V6Special Price $10.46 Regular Price $14.99
- Walker Resonator Assm Front To Muffler Exhaust Clamp for 2013-2018 Nissan Pathfinder 3.5L V6Special Price $10.48 Regular Price $14.99
- Fel-Pro Exhaust Pipe Flange Gasket for 1987-2000 Nissan Pathfinder 2.4L 3.0L 3.3L L4 V6Special Price $11.07 Regular Price $15.99
- Fel-Pro Exhaust Pipe Flange Gasket for 2005-2012 Nissan Pathfinder 4.0L 5.6L V6 V8Special Price $11.11 Regular Price $15.99
- Fel-Pro Exhaust Pipe Flange Gasket for 2013-2015 Nissan Pathfinder 3.5L V6Special Price $11.11 Regular Price $15.99
- Walker Resonator Assm Left To Int Pipe Left Exhaust Pipe Flange Gasket for 2001-2004 Nissan Pathfinder 3.5L V6Special Price $11.28 Regular Price $15.99 Out of stock
- Walker Exhaust Pipe Flange Gasket for 1987-1995 Nissan Pathfinder 3.0L V6Special Price $11.28 Regular Price $15.99 Out of stock
- Walker Converter To Muffler Exhaust Pipe Flange Gasket for 1989 Nissan Pathfinder 3.0L V6Special Price $11.28 Regular Price $15.99 Out of stock
- Fel-Pro Exhaust Pipe Flange Gasket for 1955-1958 Pontiac Pathfinder 4.3L L6Special Price $11.29 Regular Price $15.99
- Fel-Pro Exhaust Pipe Flange Gasket for 1955-1958 Pontiac Pathfinder 4.3L 4.6L V8Special Price $11.29 Regular Price $15.99
- Fel-Pro Exhaust Pipe Flange Gasket for 2001-2004 Nissan Pathfinder 3.5L V6Special Price $11.30 Regular Price $15.99
- Walker Converter To Muffler Assm Exhaust Pipe Flange Gasket for 1990-1995 Nissan Pathfinder 3.0L V6Special Price $11.51 Regular Price $15.99 Out of stock
- Walker Resonator Assm Right To Int Pipe Right Exhaust Pipe Flange Gasket for 2001-2004 Nissan Pathfinder 3.5L V6Special Price $11.51 Regular Price $15.99 Out of stock
- Walker Int Pipe To Converter Exhaust Pipe Flange Gasket for 1989-1995 Nissan Pathfinder 3.0L V6Special Price $11.51 Regular Price $15.99 Out of stock
- 2 pc Walker Exhaust Pipe Flange Gaskets for 2008-2012 Nissan Pathfinder 5.6L V8Special Price $11.63 Regular Price $16.99 Out of stock
- Fel-Pro Exhaust Pipe Flange Gasket for 1996-2004 Nissan Pathfinder 3.3L 3.5L V6Special Price $11.71 Regular Price $16.99
- Fel-Pro Exhaust Pipe Flange Gasket for 2013-2015 Nissan Pathfinder 3.5L V6Special Price $11.71 Regular Price $16.99
- Walker Y-Pipe To Int Pipe Exhaust Pipe Flange Gasket for 1989-1995 Nissan Pathfinder 3.0L V6Special Price $12.23 Regular Price $16.99 Out of stock
- Walker Exhaust Pipe Flange Gasket for 1987-1995 Nissan Pathfinder 3.0L V6Special Price $12.23 Regular Price $16.99 Out of stock
- Fel-Pro Exhaust Pipe Flange Gasket for 1987-1988 Nissan Pathfinder 2.4L L4Special Price $12.36 Regular Price $17.99
- Walker Converter Center To Rear Exhaust Pipe Flange Gasket for 2013-2018 Nissan Pathfinder 3.5L V6Special Price $12.45 Regular Price $17.99
- Walker Front Converter To Rear Converter Exhaust Pipe Flange Gasket for 2013-2018 Nissan Pathfinder 3.5L V6Special Price $12.70 Regular Price $17.99
- 2 pc Walker Exhaust Clamps for 1996-2000 Nissan Pathfinder 3.3L V6Special Price $12.76 Regular Price $17.99
- Fel-Pro EGR Valve Gasket for 1996-2000 Nissan Pathfinder 3.3L V6Special Price $12.92 Regular Price $17.99
- 2 pc Walker Exhaust Pipe Flange Gaskets for 2008-2012 Nissan Pathfinder 5.6L V8Special Price $13.11 Regular Price $18.99 Out of stock
- Fel-Pro Front Exhaust Pipe Flange Gasket for 2014-2015 Nissan Pathfinder 2.5L L4Special Price $13.61 Regular Price $18.99
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