The REALLY good setups use a sprayer that sprays nitrous or CO2 on the intercooler cooling far better than ice without restricting airflow through the intercooler. Really cool setup now that can cool the air entering the intake manifold, your fuel rail, air exiting the turbo, and finally being sprayed on the intercooler, and even after going through all the areas, it's still below freezing. I't supposed to be good for a LOT of power AND street legal. Now for someone to test it on a 7M...
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