Active catless DP
So I've been looking at these since before I had my 135 and now i have the money to do downpipes but how do the Active Autowerkez catless DP compare to other brands like AR or CPE?
08 n54 135i Alpina AT 78k
Engine: JB4 e45/93, AFE DCI, VRSF 5" Stepped FMIC, VRSF Upper/Lower CP, BMS Tstat, RB PCV (Next)
Exhaust: Active DP, n55 Mids (Next), Berk Ceramic Delete
Tires: Nitto 555 265/35, Nitto 555 225/40