Yeah I know what its like having a loud car. I will always keep my stock exhaust for that reason. I had a rx-7 with a 60-1 turbo and a straight 4 inch exhaust all the way back to a race muffler(straight through). That thing was loud....
/ 135i - M-Sport / 6-Speed / BMW Performance Exhaust / BMS Intake / JB4 Stage 2 ISO + Flex Fuel Wires / BMS 3.5in Down Pipe / CP-E Charge Pipe / Walbro 255 in-line fuel pump / BMS H8 AE / BMS SSK / APEX EC-7's with Nitto NT05's / COBB Tuning Sport Springs / Koni Yellows / Wagner Evo 1 / Blacklines / iCarbon Rear Diffuser / BMW Performance shift knob/boot / BMW Performance Steering Wheel /