ok I have a GIAC chip in my car and I'm spiking 18-19psi , and holding about 15
how many of u guys are also doing this , I'm asking because all the ppl that have GIAC tell me they spike 21
sooo... idk whats wrong then , I had a boost leak before but Ive fixed it , so I'm not sure what it might be this time

2002 VW GTI 1.8T
Injen Intake
Forge DV (Reversed)
Greddy FMIC