I only had to get under the car to install the eqt pipe kit. All turbo work was top size.
That said, everything is in and driving. It's rainy in Portland right now(ya don't say) so anything about 4k rpm will start spinning.
No leaks, no check engine lights, about the only mishap with the install was the 'I' on my front GTI badge went missing... no idea. I took the whole thing off until I can get a replacement lol
I had been slightly worried as it kept smelling like coolant as the car warmed up, but I'm assuming it's just burning off the downpipe where it spilled.
Drove a few miles to get it up to temp and filled the overflow again.
To sum up my install: the charge pipe kit was the hardest part for me.
6 hour total install time
1 extra of testing and coolant filling
This was in my garage with a jack and jack stands. I do have some years of experience on cars, but anyone that is confident in their abilities should be able to tackle this in 6-8 hours.