Thread: headers, pully drop, pcm order of operations???

Since you have the newer gen V supercharger you may not be able to drop to a 3.4 pulley. Your supercharger is more efficient so you only need a 3.5 or 3.6. How are you planning on tuning it? if its at a local shop or a friend is doing it, you need a different year PCM. otherwise you can order one from ZZP ect and be fine.