I’m over 100k and getting an occasional studded under load and just replaced the plugs so I think I have a coil farting out. Didn’t wanna spend the extra 150 bucks if there was no reason but to look cool
I use the windshield washer reservoir. I use snows boost juice which is about a 50/50 mix but there a variety of ways to get ur meth depending on how creative/cheap u want to be. I just found for mounting purposes it was easier to put a bung in the washer fluid and mount the pump in front of it...
If u do livernois u would have to check with them. Every other tuner will tune without the downpipes. U will absolutely need a tune to take advantage of the meth.
Stock 2 bar should take the tune without issue. You will need a 3 bar specific tune or it will run like crap. Stock is about 8 pounds most 2 bar tunes crank that up to 12-14 and the 3 bar allows it to go way past it but the turbos arent super efficient after that. I’ve seen 22psi on mine.