Hmm, interesting choise. I am very conservertive when it comes to modding my car. I don't think I will choose those. But I am sure there will be others who appreciate the choise including owner. Enjoy.
2007 E92 6MT - Silverstone II with /// Performance Exhaust with ACM Test Pipes and BPM Sport Stage II Dev-Tune - Proper engine warm up, 12-monthly oil change, Castrol TWS 10w-60
2014 F15 X5 3.0d