Tuning with a blinky blinky a/f guage is not the greatest idea...our o2 sensors are not precise enough for serious tuning, even with the numerical LED style blah blah blah its in a million posts. What kind of turbo/what psi/what kind of boost control are you running, and what are your EGT's at WOT?
vandy
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Black 98 GST missing her owner and looking for a new one...Inquiries welcome