Golf VI R :: Low Oil Pressure Warning - Engine Off

So last week I got my new smf flywheel installed but it wasn't without issue. While putting everything back together, somehow the plastic side to side shift lever broke. I had already ordered a sigma six shifter so I had them put it in.

Now I picked up my car and had a lot of trouble putting it into first, and ended up in third several times. So after about a mile or two I pulled into a gas station to check it out. While turning at a very slow speed within the gas station, I got a warning on the mfi screen that said something like "low oil pressure! Engine off!"

The engine didn't cut off and the warning went away after a second.

I drive the rest of the way home since everything seemed fine besides the shifter. I checked the oil at home and the dipstick was dry! I couldn't believe it. So this morning i adjusted the shifter and it's super smooth now, then I added a quart of oil. Still barely at the min line so I added another half quart, which finally got it into the middle area. I added the rest of the second quart after that. I did run the engine then let it sit to measure.

Car is at almost 28k. My last oil change was almost 8k ago. Stage 2+ Apr. Hpfp and new cam follower put in 10k miles ago, at 18k. Downpipe put in this January, around 22k miles.

If the dipstick was dry, that would mean i burned at least 3 qts in 8k miles. Is that likely? Or do you think the installer messed something up?

I never got a clear story as to how the shifter broke but these guys are supposed to have a good reputation. I couldn't find any leaks or anything and didn't notice anything that looked out of the ordinary. I'll try to jack up the car and take a look, but I'm dropping it to the dealer to inspect next week as I still have CPO warranty.

I know these engines burn oil but with this low mileage I'm worried either something else is going on, or the installer messed something up and didn't tell me.