My 16 has got up into the mid to upper 20s 25-28 psi I believe. It bone stock rhough
If you want your engine to last a long time, get rid of that K&N filter and use the stock one. They let way too much dirt into your engine!I have a 16 with the AISIN. Bone stock, well less a K&N replacement filter and tube. It's touched 32psi.*