friend of mine takes his 335 in for service with his intake and JB2 installed. He's had now FOUR hpfp's replaced, numerous oil changes, and other standard maintenance and they have never said anything about the mods. However, I did not take the same risk. I removed both the intake, JB3, and replugged in the golf-tee mod wire in the back before taking it in earlier this week. It took me about an hour and although I probably didn't have to, just made me feel safer. You never know what kind of shady shit SA's will try to pull.
'07 E92 | Space Grey | Sport | Premium | JB3 | aFe DCI Stage 2