Hi there,
new to this forum but have a 2006 Legacy B4 Manual STI (suspension and cosmetic upgrades no engine upgrades).
Recently took car in for some modifications (will list below) including a tune and its come back and I swear it feels pretty much the same power or less than what it was before which I believe to be 280ps at the engine unless mistaken? After the tune it came back with a power figure of 132Kw atw (240ish at the engine) which to me seemed way too low).
So basically want/need some advice as to wtf might have gone wrong as went to well known people to get the work done.
Modifications:
New top mount intercooler (thing is huge maybe too big?)
HKS blow off valve
HKS boost controller
Sard fuel pump and pressure
Full downpipe and exhaust (Dual muffler)