we tend to only put in whats needed as car can sit in the garage for a while, and dont want the fuel going stale. We will be changing the fuel filter around every oil change, so thats about every 6k, so not worried about the shite in the tank. the fuel pump also has a filter on it also but this is to stop big debris getting through.
But yeah its good on fuel when driven normally....but its a VE, and VE's love to rev.
2.25" on it mate, and the cat is i think about the same. We need to get a bigger cat for it.
hmmm i doubt zorst will transform it, will make difference but not bucket loads.
whats full spec as is?