Originally Posted by andres123
AA = Active Autowerke, it's a brand. Also to the people looking to do some performance modifications to their 328 I have nothing against it but in my opinion just keep it all stock, but if you insist then I suggest these.
1. AA Tune, Eurocharge Tune, or BMS PBX
2. BMW Performance Intake or Simota CF Intake V2 or Insert Other Brands Here
3. BMW Performance Exhaust or AA Exhaust or Insert Other Brands Here
Choose what fits your budget, but anything else other than what I suggested will require deep pockets.