hi everyone

this is my mods list

k&n factory air filter replacement
Greddy 3-row stock mount intercooler
a dual 54mm downpipe
and a re-amemiya ecu type A
2002 turbos with just 6k miles from new

the graph shows that the max boost i can get is in between 6k rpm and 6.5k rpm

the guy from the dyno told me to take the filter out. it gained 8whp

overall i got 280whp but i dont get the max as i should

do you think there could be a problem with the ecu ? not tuned properly ?
or my wastegate doesnt function as it should ? ?

i will attach the dyno sheet to give you a better understanding of what i mean