Wow,so fast just in 12 days. Good quality turbo.oil and water cooler. Air inlet is 4" and out is 2"(if you have 2.5 intercooler piping than you will need a 2.5"-2" reducer coupler like i show in pics. Exhaust exit flange side is 3" and its a T3 flange turbo. Spools amzing on my k24a2 Honda motor. it already has a built in oil restrictor in it. i love this store. i hope this store stays and keep providing its good turbos. and i hope it launches some ball bearing turbos too.that would be cool.