intercooler is so clean no you can drink out of it, smoked like a bitch before the swap and after, the 16g is pretty much brand new, i bought from pj (tonedef) has like 15 miles on it, i cleaned everything from the oil lines, coolant lines, intercooler pipes before the swap so i didnt get unwanted shit in the turbo, and all the bolts are tight and how they are supposed to be bolted on