Originally Posted by ratedpi

Posted a dyno graph previously for HP figures for my full bolt-on Z. I switched out my Berk HFCs for a custom test pipe and I gained 20whp and 13 lb/ft of torque. Here is the new dyno graph.

Car is tuned with UpRev on a Dynapack hub dyno with 3 mods:

HKS Hi power catback
AEM V2 intakes
Custom non-resonated test pipes

Note: Ambient temperatures were probably a few degrees cooler from when I dyno'd it last year. Today was around 28 degrees celsius.