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Old 01-31-2012, 05:27 PM   #5
still wants a turbo...
e24_635csi's Avatar
Join Date: Jan 2004
Location: Tottenham
Posts: 921
I understand that the HK system isn't great, but im just looking for some improvement over the stock Non HK without having to shell out the cash for aftermarket stuff. Ive got a big boomin system in my m5 if I need my fill
Still just curious whether the amp and sub is a simple swap in. Thanks again for all the input

F15 35d m sport - e34 M5 - e46 330xi m sport- e28 M5
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