Well after installing a 3.5in Ets Tmic today and did a few datalogs Im impressed. Car pulls alittle harder in the higher rpms now. First few miles it did alittle hesitation..but the ecu seemed to learn pretty quick...before the ets tmic I was seeing 3.5 knock..And after doing anice 1-4th gear run the highest knock I got was 0.7.....my afr's were around 11.6 and fuel psi was 1500-1750..so not to shabby..still getting the car tuned here soon..but least it seemed to help quite a bit 
