Okay the car is a 99 EM1 with a GSR Block and a B16 Head has a few internals (keep in my mind the car was just in a wreck and the hood is off) the last thing that was installed MSD Box and cap, MSD 2step rode fine for 2 weeks. 2 days ago we installed Apex-i AFC NEO, and OBX oil catch can. rode fine for like 2 days then all of a sudden the car made a loud raspy noise and started to go in limp mode and we can't figure it out. theres little airflow in the intake mani and little flow out the eshaust. There is this hissing noise we also found in front of the motor. might be a bad gasket but it doesn't explain limp mode any opinion or suggestions will help