Upgrade your Eprom $50 ..Socket your ECU $60 NA or TT Our Stage III ( stock injectors, pop charger, cat back) made 400rwhp .. Our best today has been 840rwhp on a modded Z. This is just the chip ,, if your ECU isn't socketed we can do that too and usually have one ready so you don't have down time just have a core charge until we receive your working ECU. Cost for socketing $60 plus ECU shipping
We also sell ECU's socketed for a spare or to replace a non functioning one.