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      08-11-2023, 01:18 PM   #1
applecst
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Drives: G42 M240i
Join Date: Jan 2022
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JB4 Sound Change

Hello G42ers,

I recently put in a jb4 and am happy with the little device in so many ways! One surprise for me was it actually cranks up the exhaust sound noticeably.

My question is that did any of you notice that the sound volume actually kicks up a little after start up? (not loud immediately at the cold start point). Wondering what is causing this lag in sound boost.

Thanks!
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