Thank you for the info. I have the M-Sport package with the increase speed limiter (150 mph) which I think it means its equipped with option code S840. Just have to verify this before I order it. New at modding BMW's and just want a little extra hp until the warranty expires. BMW PE will be next...
2016 BMW M4 Convertible(F83).
2011 BMW 335i/E93: M-Sport(Sold)
2007 Dodge Charger SRT8 "SuperBee"
2012 Dodge Charger SRT8 (Wife's Car)
Last edited by WildBee659; 10-09-2012 at 01:32 AM.