This issue started about 500 miles ago at 64000 miles, almost immediately after I replaced the plugs, (gapped oem NGK's)... however, those are not a current suspect.

Mods: HKS 75mm single, berk test pipe.

When I start the car from an overnight sit, there is ZERO smoke. On occasion it will let off a plume of smoke as I begin to put load on the engine from a dead stop (1st gear start). There is absolutely no smoke at WOT at anytime... And I have zero oil consumption, in fact this is my oil after 4000 miles:



The best I can describe the smoke is that is a little less severe than this random google picture (comical I know, but all I have):



I cleaned out the PCV in light of that helping but it still occurs maybe 1 time in every 20 1st gear starts. The smoke smells oily but is more black/grey than blue.

In conclusion:

WOT: no smoke.
Startup: no smoke.
Coolant: perfect.
Oil: perfect.

Any insight is welcome and appreciated, this has no effect on the drivability so it's not an issue I need fixed overnight.

 

Test pipe more than likely is your culprit. The catalytic converter filters the exhaust and unburned fuel so you don't see or smell anything usually. With out it there unburned fuel will cause smoke. White smoke= coolant, blueish smoke= oil, and black smoke= fuel

 

Yeh, I'm pretty proficient in the workings but thanks for the refresher I just don't know why the issue arrose out of nowhere (long after TP install), and only happens at complete random times (once every 20 or 30 starts)

 

Probably just the angle the car is sitting at has something sloshed the wrong way... find a flat spot and stop/star over and over to see if it does it. If not try on a hill.