Post by
fyarf »
https://forums.nicoclub.com/fyarf-u259099.html
Fri Feb 12, 2016 7:13 am
I've seen from other members here that bullydog is a lot of placebo and not much performance. Uprev takes your car's ECU, gets the rom, reads your ECU on a dyno, and recompiles the rom for maximum gains from anything you put on. Hold off on Uprev until you have all performance mods you plan to get. Otherwise you'll have to retune to see max performance from the additional parts.
I'm considering the Stillen underdrive pulley or 2JRacing lightened pulley (can't tell from the website if its underdrive or not), so I haven't used Uprev yet.