Not sure where you live, but Ricambi America (site sponsor) is now importing X-OST into the United States. Our first few customers on each model will get aggressive discounts, in return for audio clips and installation photos. X-OST was formed by several engineers that left "the other brand", in an attempt to build a better, more affordable mousetrap. Highly polished, low weight, etc. X-OST is headquartered in Maranello, basically across the street from "the other brand"
Contact us view email or phone if you'd like to discuss.
The 360 silencer is here:
http://www.ricambiamerica.com/product_info.php?cPath=739&products_id=261347
www.ricambiamerica.com