Information about BMW amplifier upgrade options.
Category: BMW Audio
BMW Subwoofer Upgrade
Information about BavSound Ghost subwoofer upgrades.
BMW Stage One Speaker Upgrade
Blog entry explaining BavSound Stage One speaker upgrades.
Automotive Repair & Performance
Information about BMW amplifier upgrade options.
Information about BavSound Ghost subwoofer upgrades.
Blog entry explaining BavSound Stage One speaker upgrades.