SOMD_GSR_STi
Flatout Performance
So i have been experiencing this issue. Car seems to sputter (before and after) car is warmed up. Very annoying sputter. Car has fresh oil changes, only mods are Megan Header, BLOX Test Pipe, HKS Hi Power exhaust. My first thoughts were bad gas, but I ran it out and filled it again with Shell 93 Octane. Now im thinking spark plugs? Car has 83k Miles on it so maybe it could be them? Friend says check distributor as well but it seems like that is fine but who knows haha. Any suggestions? What spark plugs to use? ect.