Quote:
Originally Posted by Brandon26pdx
Not really. Intake and exhaust mods that help the car "breath" better will almost always show more impressive gains on turbo/supercharged engines, which move higher CFM's to begin with compared to N/A engines. Factory turbocharged engines are usually tuned very conseratively compared to N/A engines also, allowing intake/exhuast mod's to provide more of a "bang" compared to those same mods on a N/A motor.
I think the (misguided) point someone was trying to make about cold air intakes doing "more" for N/A engines was in regard to the temperature of the intake air, which is a different measurement than the volume (CFM) of air entering the engine. Drawing significantly hotter air into an N/A engine will almost certainly wreck more havoc on power and drivability than the gains provided by sneaking in a few extra CFM's with an open-style "hot air" filter. The idea with the CAI on a N/A motor is to get more air but also cooler air into the engine (or at least air that's not any hotter than what comes into the OEM intake system). This usually shows some reliable power gains on a N/A engine. Whether it's worth the money and hassle is of course the owner's discretion.
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This is the information that I have thought was true for the past 3 or so years, but I didnt feel like getting flamed
