i'm going in to ASG for a VERSO tune will the following mods on an 04 WRX:
3'' s/steel exhaust
STi TMIC
K&N panel filter
"MASSIVE" TD-04
if i want to get the most out of my TD-04 will the standard fuel pump cope or should i be upgrading to something like a Walbro???
wat would max out first???
ps. i hav plans for further mods...