Ball bearing M157 turbo upgrade
https://www.amsperformance.com/cart/...6364-0001.html
https://www.amsperformance.com/cart/...040-5005s.html
I believe stock is GT2252 based
https://www.amsperformance.com/cart/...-452187-6.html
https://garrett.honeywell.com/produc...338&p=POSSIBLE
not sure about ams but think its a gtx287xx series.. renntech's is GTX2870r and very similar to ams


