This site help me do my swap with out ever posting a Q so thanks for that I just read the forms and some past Q from others I have a B18C R in a EG. Now i want to push some boost, im going to puss out and go with a kit, chances are the rev hard kit. My q is with out changing any internals can I push 5 psi with 11.1 comp., can i stay with the FMU, or will that have to be the first thing to go? I have heard that you can go as far as your tunning but, for such low boost would it matter? Rev hard comes with a TiAl WG and couldnt i just put in a 5 psi spring and still run the FMU? :unsure: I want to go with hondata but I dont trust my-self to do the tuning and Im sure dyno time cost bucks. And say i do go with hondata and have a shop tune my car will i be able to boost any more? Thanks for any input.