I don't do anything but take it in. I have a good relationship with the service advisors, manager, and techs. However, I was denied new turbo for waste gate rattle, lol. I was told that since they know I'm modded, I would at least have to remove ONLY my tune, dp and charge pipe. Wish I would have known that before I threw my stock charge pipe away. Anywho, FMIC, suspension, exhaust, and intakes are fine (@ my dealer).
Cobb e30 Map|ER FMIC & CP|MS DP & Stud Kit|aFe DCI|Spec Stage 2+|HRE 840r|CF GTR Vented Hood|OSS Design|Walbro 255|M3 Lip Spoiler|Muteki Anodized Blue Lugs|HID Fog Conv.|Painted Calipers|Bilstien PSS9|Cusco Strut Bar|StopTech Power Slot Rotors, Street Pads & SS Brake Lines|Michelin PSS|Muffler Delete