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  • BMW M3 Audio Upgrade

    BMW M3 Audio UpgradeDriving Sounds Review

    We came across this excellent review of a FOUR MASTER install into a BMW M3. According to Driving Sounds Magazine, it remains one of the finest BMW upgrades for the money they have listened to. Read all about it by clicking the link below

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FOUR MASTERs is a national network of independent specialist installers capable of designing and fitting car audio systems to the highest standard. By bringing them together we offer consumers a uniform set of unique benefits for having installation work carried out by them. These include:

  • National 3-year parts and labour warranty
  • Click and collect from your local FOUR MASTER
  • Expert system design
  • Installation by trained installers
  • Access to specialist high quality car audio brands
  • Friendly, expert advice
  • 21-day satisfaction guarantee (FOUR distributed product only, excludes labour)