I am looking flash my ECU and maintain the stock exhaust. A few companies have flashes available. Hurricane is advertising 225 hp... but I am not sure where their baseline is for this flash. TD says their flash works well, but have not dyno'd it (to my knowledge). Ulmer has a flash (possible EVO?) and is claiming 215 HP with a baseline of around 187 ish. This seems realistic. Does anyone have experience with any of the flashes and how are they working out? Bottom line is these need to be safe as the warranty will be voided.