Corrected for DA to make it equal to the run I made 401.9hp, the JLT, Lund tune, and 2.5" catback produced just under 416hp (415.8 I think but cant remember off the top of my head) so I would tend to agree with what you posted. Actual numbers were 408 or 409hp.With only a JLT, without running a 93 octane tune, that's about right. 93 octance optimized tune and a 3" cat back should get you in the 415/417 range I'd guess.
Sounds right. Looking forward to my dyno results this week!408/370 dyno tuned with jlt and mbrp cat back