MATCH UP W8BMW-S Ultra Flat Subwoofer Upgrade kit for BMW F32 4-Series Coupe 3.5" speaker Suggested lowering -40 front and

Suggested lowering -40 front and -40 rear(Suggested lowering figure is based upon Tein's research into height against best ride quality)The lower you set the ride heigh the less movement the dampers will have

Get the bass you want

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MATCH UP W8BMW-S Ultra Flat Subwoofer Upgrade kit for BMW F32 4-Series Coupe 3.5" speaker Suggested lowering -40 front andMATCH UP W8BMW S Ultra Flat Subwoofer Upgrade kit for BMW's Maximum POWER for BMW sound concepts The ultra flat UP W8BMW S subwoofers are playing extremely dynamically and punchy. Especially the exceptionally rigid fiberglass cone generates maximum sound pressure without distortions. The BMW specific baskets and connectors allow fast and easy installation into the original mounting positions of all BMW model ranges with under seat subwoofers.