nlsolja123

Looking on ebay I saw a hi flow fuel rail for the rx8. It states a larger inside diameter than stock and says the mm . Says for top feed injectors, its 80$...

is there anytime point in this is your n/a wth no2.?

9krpmrx8

iTrader: (46)

There is no point in upgrading the rail on an NA 8. Or really on any RX8 actually.

bose

iTrader: (5)

The only reason to upgrade the fuel rail is if you were doing a return style system. KG parts already has one made for this very application.
That said I don't think the bore of the stock fuel rail has any ever been suspect of being restrictive, so why do it?