personally, i suggest getting a bigger or more efficient intercooler. i've never liked the idea of using water injection on a street car. just adds another variable for failure.
i could see it on a race car, where you're stretching the cars to the absolute limit constantly, and only on a track, but i've _rarely_ seen this used on track cars.
water cooling on a street car is generally just a bandage for doing it the right way.
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:shrug:
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