Mercedes S Class S430 S500 10mm ORIGINAL Formula Power RACE PERFORMANCE Lead set
S Class, W220, S430, S500, S55 AMG, 98>. FORMULA POWER 10mm HIGH ENERGY HT LEAD SETS. The Ultimate cable for spark efficiency for the Aston range, Formula Power. A typical energy drop is an amazing 1-2% compared to standard cable of 15-18%.