D dobson Free Member Feb 7, 2010 #1 has anyone used these on a 2010 m8? i was going to buy a different helix but the dealer pointed out one of these from cpc. is there much performance gain or is it more for adjustability?
has anyone used these on a 2010 m8? i was going to buy a different helix but the dealer pointed out one of these from cpc. is there much performance gain or is it more for adjustability?
