Curious as to who is running what manifold with their high powered evo motors? Not sure if stock is going to be enough at around 600 or i need to convert to something bigger and a/m. There are a bunch of el cheapo ebay specials with 80mm throttle bodies but not sure if they are suitable/sensors bolt straight into their TBs etc. And im not particularly keen on forking out for a hypertune mani.
What about stock mani bored out to take a bigger TB, how big can you go - and what is recommended for 600?