Not for long they won't be....and when they spit the dummy its bad....expensive bad....crying customer bad
If done correctly they easily take that kind of power. There are guys who have been running it for years with no issues.
It’s once you get go near 1300-1500hp that stuff starts to break.
Amazingly the cars with conversions are relatively cheap. Maybe a 10-15k uplift over a standard car and quite a hard sell even at that.
I wouldn’t buy a heavily modified supercar as my pockets aren’t deep enough if it did go bang. I’d certainly cry.