Yea I may opt to do AMS+CSF radiator in the future since they place nice together, are you also blocking off the engine-side air intake? Also my coolant temps did drop maybe 10-20 degrees on average with the oil cooler installed, it normalizes on heavy track use. My tires are 235s Federal SS595 which I found out it got punctured on track on the sidewall so new set and those are bad track tires anyway, probably going Hankook RS4 17x245.
Also why has no one ever talked about the cheap OEM DSG trans breather box for track use? My driver side wheel well is covered in trans fluid and just found out yesterday somehow that there is an OEM DSG transmission breather box that most 2016 and older GTIs don't have and it's a $30 VW part. The stock breather under the airbox has a plastic cap that barely does anything for track use and at high temp it overflows and spills all over the driver side wheel well and suspension.
OEM DSG Trans Breather Box:
https://www.shopdap.com/02e-301-472-e.html -> Takes about 5 minutes to install
Quick thread to identify if you already have it (its a box attached to the left side of the battery tray):
https://www.golfmk6.com/forums/inde...dsg-covered-in-fluid-heres-likely-why.312256/
I had bought the Spulen DSG catch can not knowing there is an OEM part and they didn't supply any instructions so I'm sending it back to install the OEM part, this should be a mandatory check for Mk7 track use with a DSG.
I think I overflowed enough trans fluid that I'll need to add some back and do the leveling procedure again. I peaked at 255f trans fluid temp so I'm going to give the billet DSG housing a try and maybe upgrade the size of the DSG heat exchanger. Doubt I'll do a DSG fluid cooler and instead just upgrade to the CSF radiator but we'll see if I can get my Majestic IC temps down before switching to AMS+CSF.