DSE subframe connectors all the way.
When we installed my factory subframe, I used DSE subframe connectors.
Check out how we did our connection to keep the subframe removable..,
Crush tubes welded into the subframe, stainless bolts lathed off to proper length, and actually constructed a "cantilever" joint between subframe and connectors, which by the way, are welded halfway in the floorpans, and halfway out. That creates tremendous strength, both in bending moment, and in compression/tension. The steel wrap we used was an 1018 alloy carbon steel 3/16" thick. All TIG'ed up with ER70S2 filler rod.
And YES, you can jack on the front and lift the entire side of the car with negligible flexibility.
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