It's depends on what your power gaols are with your car. The stock camshafts will work fine and will not need to be changed. The B18C1 works well with a T3/T04B or E used in the Drag 3, Revhard and FMax turbo kits. On your stock internals you should keep the boost levels below 9 psi, but proper tuning is a must for any turbocharged vehicle. If you plan to exceed 9 psi you will want to upgrade internals, such as ductile sleeves, forged rods and pistons with a more boost friendly compression level, around 9.0:1 is what I recommend.
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