Armaspeed here - sounds amazing. Dont have the covers as it doesn't fit when CSL Brace is installed. Mine is loud, likely as loud as front mount, if not louder drivers perspective, due to having huge vents in the CF hood right where the filters are.
Heat soak - bah - these water cooled setups doesn't matter.
Power loss - fake news (friend of a friend of a friend and their friends bs stories)
power gain - negligible.
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