Devils Advocate here...I don't think it will have the effect they write about. I base this on the expensive aftermarket Ignition systems we tested back in the '80s that claimed to provide more power and economy through multiple sparks. The ads touted more efficient flame fronts like this too. Testing them at the dragstrip provided NO gains on stock or modified street engines. No one recorded better fuel economy either. The only positive thing about them was the money it made the manufacturer and the performance shops that sold them.