I've done 80% of everything SamDoe1 mentioned and I just crossed 150k. I know you want to mod, but I modded and maintained simultaneously (expensive, dont recommend it lol) and I dont regret spending a penny. Both necessary and worth it.
BMWCCA Member #461128
2003 Jet Black 325i ZPP, ZCW
Mods: P46's with Orion V2's | Cosmos Racing Cold Air Intake | UUC Underdrive Pullies | H&R/Koni | Staggered Style 119's | Clear Corners/Sidemarkers/Tails | Bimmerbrakes Stoptech Slotted Brake Upgrade | BimmerBrakes Headers | Magnaflow Catback Exhaust
Soon to Come: Shark Injector