Rear custom panels were done from Aluminium plasts for better sound. Two Soundstream Tarantula CONV 6 speakers were put inside. 2 JL Audio 10 " subs and 2 amplifiers (Audison LRX 4 channel & MU-Dimension between subs =))were installed in my trunk...Front Speakers - FOCAL 165 V2 series
All these upgrades were professionaly installed by one of Moscow companies
www.sv-art.ru (web-site has 2 languages - English & Russian
)
Approximate cost with installation ~ 3500$
Red leather with all the job ~ 3500$
At the moment Dual Exhaust System is in the process of installation. The whole system including cat-back and etc will be changed. Plan to show photos soon =)