I have a TT 93 octane street chip - 42 lb injector combo installed a few months ago. My mods are in my signature, but I plan to install exhaust and downpipe soon and possible upgrade the turbo and torque converter. At what point do I need to look into having a new chip burned for my setup? I'm already having to add 5-10% fuel at WOT to keep my o2's at a steady 800 during a 3rd gear pull. I've kept my fuel pressure set at 43 psi line off assuming my gauge is correct.