Roadtrip and report: BMW M5 Touring 2007 from Stockholm Sweden to Supersprint in Italy via Monte Carlo Monaco: dynoverifid gain of +40 HP with full system + 40 min HD video
Great write up, pictures, and post Gustav. Do you know what the offset is on those winter wheels? I'm trying to figure out a set for my car and will probably not go with the BMW option but would like to get something close as those look good.