I have an 05 with 33x12.50 /20 with ppe std tune 4 in magnaflow exhaust egr blocked. I want to be able to run any tune on my standard tuner. I put it in the 160 tune and it limped at half throttle getting on the interstate. dam it felt good. Will a transgo jr let me do this or do i need a stage IV full build to run the 225 when i want to turn it up on the weekend. any suggestion appreciated