I recently beagn noticing my second turbo is not seeing boost until hihger in the RPm than before. I uesd tp be able to feel bosst just around 5ooo rpm, and now it doesn't feel to come on strong until 6500. I'm running stock sequential with apexi power intake, precat, main cat and stock exhaust.

any ideas on what is causing this? I just took care of a loose intercooler hose that was leaking boost , but that didn't fix it. Is it my pre-cat clogging? I'm about to get a downp[ipe, so if that's the case I guess I don't need to worry about it too long. My primary turbo still operates like normal.

hopefully this isn't somethig big...

 

do you have a boost gauge? and what does it read?