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What are the benefits of running boost by gear and if I turn it off do i risk messing my engine up or something

So i recently purchased a 27won down pipe, prl SRI, and a prl front pipe. not many exhausts come without a front pipe, so I was wondering if the thermal r&d exhaust was too quiet for my liking. I wanted to make my car louder but not annoying to me but I also don’t want it too quiet and then I...