I am trying to install pass side intermediate pipe to 1st converter, Exhaust flange and two bolts with springs, What is the secret to compromising the springs so I can get bolts started,

 

I assume you mean compressing the springs.

I'd use extra long bolts to catch the springs through the flange holes into shorter length and then remove one side at a time to install the regular nuts 'n' bolts

Good luck.