SpeedFactory Extreme Duty L19 Head Studs - B/K Series Engine:B18/B20 You'll need these shims if

You'll need these shims if you have purchased the bearings only

O2 sensors

harder bushing has less deflection

It is not only more efficient than the OEM radiator resulting in increased performance but also provides lower coolant temperatures in extreme environments and conditions

Dual Ball Bearings for smooth operation

SpeedFactory Extreme Duty L19 Head Studs - B/K Series Engine:B18/B20 You'll need these shims ifSpeedFactory Extreme Duty L19 Head Studs B K Series This Kit was designed for hardcore drag racers running high boost levels that need more clamping force and tensile strength than the typical 8740 Chromoly studs on the market. If you are looking for the best option, you've found it as these are 25% stronger than any other available off the shelf Head Stud Kit for your Honda Acura! These studs are manufactured specifically for us by ARP and utilize an