Ran mine with a standard bottom end bar arp rod bolts at 1.5bar making 245bhp, stayed in one piece for over 2 years getting thrashed on track/pod/brunters outing etc, never missed a beat, needs to be on some form of efi and well mapped though imo. The demise of that engine turned out to be a shattered piston skirt on inspection not a bent rod like i was expecting, and they were only AE pistons, not even mahles