Stage 3 looks amazing. Those might hold a candle to a 6262 on higher boost levels. Reminds me of the b5 s4's out there with bi gt28rs. If it could in any way fit, bi gt2871's would smoke the current single options.....
2008 335xi AT
Cobb AP stage 1, drop in filter, the rest stock
email@example.com w/ 1.86 60' (5,800' altitude)