BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST
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HK bass upgrade?
| 09-15-2013, 05:48 AM | #1 |
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HK bass upgrade?
Regarding the HK - I read that the woofers under seat could be upgraded with aftermarket speakers for extra bass, has anyone done that or have any links/more info?
TIA, Matt
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F31 328i M Sport MY2014 Alpine White
ACS Springs & M Sport+ Pack, Visibility Pack, Comfort Pack : Black Dakota leather, Brushed aluminium/gloss black bar, Heated Seats, Sun Protection Glass, Sun band, Electric side mirrors, Adaptive Suspension, Variable Sports Steering, Black Panel display, Enhanced Bluetooth |
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