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Air flow in and out of a motor is how power is made. The more more air you have coming in and the faster you get it out, increases your horsepower. That is what a turbocharger, supercharger and nitrous is for, as well as headers, high flow catalytic convertors and resonators (also to include COLD air intakes). Now, the more restriction you have anywhere in the intake, head, combustion chamber and exhaust will minimalize or reduce the amount of flow. Its a good idea to include a less restrictive Cold air intake when putting on a header(s) just to help improve flow (but its not a 100% necessary). If you can find a kit (intake, header and chip) that includes a mod chip for your CPU to help advance/retard timing and re-map the fuel levels, I would spend the money for that. Usually around a $1000 depending on the vehicle.

Short ram is not a cold air intake! Short ram is designed for the intake tube and filter to fit under the hood. If this is all you can get for your car make sure the kit has a heat shied because you want your engine sucking in cold/condensed air not hot/expanded air. That's how nitrous works. It is very cold coming out of the tank and expands greatly inside the combustion chamber, and that is why turbo systems have a intercooler to reduce temp's and detonation. If you can get a cold air intake then your filter sits outside the engine bay and is optimizing ambient temperatures. *Just make sure you don't suck up water and hydrolock your motor.

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Q: Do you need a short ram intake if you have an after market exhaust?
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