hey guys i have a r33 s2 gts-t it has pod filter,bov,3.5''exhaust,high flow cat,blitz boost controller i always use standard boost but when i use .8 bar the boost gauge bounces from .6 to .8 until it hits about 6000 rmp's now the mechanic that put the boost controller in an dyno it said it just needs a new computer is that all or what ?