You will see about 1whp more on the hotshot at a dyno but I don't think you notice that when the car is moving... more people will tell you the hotshot is better because they hear more noise from the engine bay and automatically think they make more power with it. I personally think the PRM is a superior design which is not only safer for all-weather driving, doesen't need cleaning nearly as often, but it also much easier to turn into a "ram-air"-style intake which will probably make the car pull harder once its up to speed. The downside is that its a bit more expensive than a HS setup.
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