Sounds like some 90mm silver and carbon tips (slip on) will be ready soon from CYBA. Im choosing to go this route since I dont want to cut any pipes to add the rear cans of an exhaust - and from what Ive heard so far, the stock exhaust is no slouch.
Retired - 2009 C63 l 2007 Supercharged RRS l 2002 e46 SMG ///M3 l 2001 e46 330ci
2013 Alpine White/Sakhir Orange F10 M5 - 20" Modulare Matte Titanium Brushed B18s - Coded by the best, V12
2014 Jeep Wrangler Willys Wheeler W Unlimited - Granite Crystal