I have a similar problem. I'll get a right or left bulb malfunction every now and again. Didn't notice it before a full Gintani exhaust. It's probably all in my head thinking it's the exhaust. I'm going to do an LCI set here shortly.
08 E92 M3 - Space Gray/Fox Red - H&R Springs - Gintani Race + Gintani Catless XPipe - AA Pulley - AA Filter - aFe Scoops - Arkym Diffuser - Evolve-R Stage 2 Tune - MS Spacers