im gonna be ordering my turbo this week coming up and idk which one to choose . i was gonna go with the s366 but thats good for 500+ . im looking to make something around 420whp pump and something close to 500 on race gas n meth n more boost. i got a s4 t2 with s5 rear plate 750-1650cc injecters 340 aero pump and its gonna have a large street port etc ..im also looking to run a high 10 sec run with it . so i cant find much info on the s360 or the s363 hows the spool/ lag on them etc . i know that guy on here made 414whp on his fc with a rtek 2.1 with a s360 .88 . i have a power fc on my car .

 

damm no 1 lol

 

Either turbo will meet your goals. The S360 will peak around 500rwhp, and easily make 420rwhp. The S363 will make slightly more power( probably around 25rwhp if i had to take a guess), but at the cost of 2-300rpms more lag.