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This air intake system was developed to accommodate the engine's factory emissions control devices including the mass air flow sensor and PCV hose

but SPC recommends 5° to 6° of caster as a preferred angle for tracking and return to center on these cars

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K&N Mazda CX-7 2.3L Turbo Drop In Air Filter Programmers This air intake system wasK&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace