hey all, I'm an avid aliexpress shopper and i was looking around and i found some nitro engines on there and they seem to be made by sh. sometimes its hard to match keywords on these websites but i think the most powerful engine i could find was the m28-p3 correct me if I'm wrong. seems pretty decent for $115 cad. I was wondering yall thoughts on it and i had a few questions. I don't really need a new engine but sometimes its fun to just tinker around and doesnt hurt to have a cheap backup if its a decent motor. I am also in canada so its a bit harder to deal with usa shipping prices etc to get motors for a decent price. I would preferably want a .30 or something but idk if that can be found on aliexpress for a similar price.

1. Thoughts on this m28-p3? and is it authentic? with my brief research i think yes because sh seems to be a asian company but i could be wrong
2. how would this motor compare to my stock hpi f4.6? i believe the hpi is made by ofna or axial or something, i cant remember the manufacturer name
3. for the price would this be a decent buy or better to shell out the money for an argus .28?
4. i assume this will fit my savage x that currently has a f4.6?

thank you!!