what gas you using for your single over 15lbs?
 

ok I got the RX6 right now thinking on selling it and getting a T78 or a T51-R. I was wondering what octane you guys using for your car if you going pass 15-17lbs of boost? and to the people that has a T78 i heard you have to do some grinding on the Intake manifold so the exchaust manifold for the T78 will fit..is this true??

c-116.....