Well the only mods I have added was the headers since last time the car was in for service. They replaced the starter, gasket and the water pump with all those mods over the last year. Intake manifold is a BMW bolt on so no issues there. The only thing I'm worried about is the headers have an issue with the warranty.
New - 2013 - 320i - 15% Tint - Future Mods ( BMS Tune, Suspension, Wheels, Exhaust)
Sold - 2007 328i (3-Stage Manifold - BMW Perf Intake w/Scoops - Powerbox - Magnaflow Exhaust - MMW Headers - KW Street Comfort - VMR 701s 19' w/M3 offset - BMW Strut Brace - 330I Brake Conversation - 5% Tint All Around - 8K HID Fog Lights -Angel Eyes)