I echo the comments above. Brakes are not really complex but are probably the most important safety feature on your car. In addition I can almost guarantee 400mm rotors will not fit 19" wheels, let along 18". My Brembo 380mm rotors actually have some slight intermittent scraping on my wheels.
E92 M3 | Space Gray on Fox Red | M-DCT | CF Roof | RAC RG63 Wheels | Brembo 380mm BBK |
| Vorsteiner Ti Exhaust | Matte Black Grilles/Side Gills/Rear Emblem/Mirrors |
| Alekshop Back up Camera | GP Thunders | BMW Aluminum Pedals | Elite Angels |
| XPEL Full Front Wrap | Hardwired V1 | Interior Xenon Light Kit |