I have the APR 93 octane chip, Test pipe and AWE exhaust. before i did ANY exhaust mods, my Podi boost guage was reading spikes af a little over 20 psi and riiiight after i did the test pipe and exhaust my boost spikes at about 18 psi now, maybe a little less depending on conditions. I have a forge DV valve that i maintain and my PCV is fine. Is this small los in boost due to less back preasure? any ideas? or is this normal and am i just retarded? haha thank youuu!!
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