Well like the title says i'm new here i recently traded in my 06 tr for a 04 sti. It has an APS intake and a prodrive oval tip that i had on the TR. I'm trying to figure out what to do right now, i am considering selling the oval tip and buying a invidia G200 cat back or buying a helix dp with some type of 3in mid pipe. I don't plan on getting a engine management anytime in the future so should i buy the G200 or build off the prodrive? I'm not sure what to do right now i like the sound of the g200 but if i can put together a turboback with what i have without EM and will run alright for a long time i will do that. Will the STI run alright with a TB and no EM? Sorry for all the questions i just want to do it right.