While they may get you into the 9'* they are not good for consistant power above about 25-27psi. Both of our 9 second cars have had their ignition systems upgraded to MSD DIS-4 controllers and coils so spark can get through the high cylinder pressure associated with that much boost.

It is safe to say however they the stock L67 S2 ignition system is good for anyone on this board. BADSSEi'* ignition and mine are still stock.