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 2010-2012 Mazda CX-7 2.5L L4Special Price $12.06 Regular Price $16.99 -
Walker Exhaust Pipe Flange Gasket for 2007-2012 Mazda CX-7 2.3L L4Special Price $14.80 Regular Price $20.99Out of stock -
Walker Exhaust Pipe Flange Gasket for 2007-2012 Mazda CX-7 2.3L L4Special Price $22.57 Regular Price $31.99Out of stock -
Fel-Pro Rear Exhaust Pipe Flange Gasket for 2007-2012 Mazda CX-7 2.3L 2.5L L4Special Price $27.98 Regular Price $39.99 -
Fel-Pro Exhaust Manifold Gasket Set for 2007-2012 Mazda CX-7 2.3L L4Special Price $38.68 Regular Price $54.99 -
Dorman EGR Valve for 2007-2012 Mazda CX-7 2.3L L4Special Price $311.86 Regular Price $445.99Out of stock -
Dorman EGR Valve for 2007-2012 Mazda CX-7 2.3L L4Special Price $311.86 Regular Price $445.99Out of stock



























