Hx35 is comparable to a gt28-30 (I believe, the hx40 is close to a gt35). They spool a little sooner though. All the research I have done, they are half the price as garrett and spool quicker. They like to be "underpaid and overworked". On a gas engine they'll do better than on a diesel because the exhaust from a diesel is slower. I know a few 4g63s with them making around 450-550. Just depends. Also, they are cheap to rebuild if needed. Hope that helps.






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