I have an 07 with fbo,jb4, and 107,510 miles on it. Runs like a champ. That much mileage is likely all highway. I wouldnt worry too much.
2007 Space Gray/Coral Red 335i (Dinan 3) 6MT Coupe - JB4 / P3 Boost Gauge / Dinan Stage 3 Suspension / Dinan Intercooler / BMS Dual Cone Intake / Stett Charge Pipe / AR Design Catless Downpipes / Dinan Dual Mass Flywheel / ACT 6 Puck Ceramic Clutch / BC Forged HB04 Wheels with Michelin Pilot Super Sports / OEM Aero Lip / M3 Spoiler / Painted Reflectors