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Discussion Starter · #1 ·
Hi team,

I would like to get some HP in my 2016 GTR GCC spec
I already installed catless mid pipe and catback from Bullet company and cobb big sf 3" intake.

now I bought the access port v3 with TCM flashing and I tried stage 1 and stage 2 but DA gauge some time reach -5.

unfortunately, I dont have tuner available in my place.

any help or advises.

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