I just searched for a comparable 700hp upgrade for a ZL1 camaro and found this:
2 yr/24K miles. I think its just covers the engine.
http://www.lingenfelter.com/engine-packa...-package-700-hp
Then this one gives you 3 yr 36K miles
http://www.hennesseyperformance.com/hpe700-zl1.html
Or for 50 more HP, you have <span style="font-weight: bold">1 yr/12K miles </span>to try to have bragging rights on an unmodified hellcat:
http://www.hennesseyperformance.com/hpe700-zl1.html