Living is SoCal and running 35”tires could have been part of the problem. I had some overheating problems on the trail, uphill, last summer in the heat plus long slow climbs that lead me to a blown head gasket that was very insignificant at first and slowly got worse. I’m currently rebuilding my motor(230,000mi) and thinking more towards extra protection from similar conditions. I was looking into running a turbo kit for a G35/350Z with the same VQ35de but the kit was very expensive and would require a ton of custom fab and ECU tuning as well. The stock radiator is only 6/8” thick aftermarket is 2” thick and approximately the same height and width plus electric cooling fan. Probably will only require custom brackets and maybe hose modification. The obd2 app sounds interesting though Sent from my iPhone using Tapatalk