OEM 13-21 Subaru Kicker Tweeter Speakers Impreza WRX STI Forester NEW H631SFJ101 | eBay
KICKER 47KSC2704 2.75" Mid-Range Speakers, 4ohm with Brackets for Select GM/Chrysler/Subaru/Jeep and Toyota Included : Amazon.co.uk: Electronics & Photo
Kicker Speaker Upgrade on my STI | IS IT WORTH IT!? - YouTube