I only have Flowmaster exhaust and cone fileter as performance modifications. I have an adjustable wastegate. I was reading the 1 turn will increase about 1PSI of boost. Can I raise my almost original T-Type up to 15PSI on 93 Octane ? Everything is original and it is running very good on about 11~12 PSI. I do have the 8 stage chip but I only use it on the stock setting. What do you all think.