Hey Z1. ETA on those headers?

Eighties Meta

for giggles, If you compare my before the header and test pipe dyno to the after, I lose HP and TQ all the way through the entire RPM range until the very tip which nets a better peak. when I compare the two I can find no positive to the post dyno. I understand HP being down because of heat but the TQ also? I just don't understand. I was going to get a BBK to I'm cancelling that now. do a few more track days which means I'll have to buy some pads again but eh.... worth it. It's like the torque my M370 was providing has magically disappeared with the headers and test pipes

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2009 370z Touring 7AT/AAM 2.5 true dual exhaust/AAM DE test pipes/z1 vqde35 headers/AAM cold air intake (R-line)/Motordyne M370/Quaife LSD/z1 brake upgd pkg/Swift Spec-R springs/WhiteLine Front&Rear sway bars with endlinks