YMMV - Chase mortgage interest reduction without refi (Jumbo ~2.875% 30yr fixed) $995

Yes, BoA offers this exact rate and rate modification on jumbo loans. It'll cost approximately $900. No credit pull, no changes to your existing loan terms and eliminates the need for any of the nonsense typically required from refinancing: appraisal, uploading financial documents to some startup, 100 calls to keep up with the process, playing games with term, rate, points, credits etc. BoA will mail you a single sheet of paper to sign where you'll acknowledge the new rate and no change to terms. Within a week, the new rate and changes will be reflected in your statement. You may call in and ask for a rate modification

Want to thank the OP and chime in as i happened to come across the thread somehow and looked into my mortgage situation with bofa, not even knowing what to call my mortgage refi/adjustment request (it is NOT a recast when i asked the loan consultant - which is just an extra lump payment which recalculated/reamortizes the schedule or something).
In any case, Bofa did mention that my account (N. Cali home, ltv ratio decreased near 50% perhaps due to housing market craziness if that's a factor for them) and BofA's former platinum/premier type level account did qualify for the loan modification that would not cost all the refi option hassles. It was as if they i was getting exactly what i could have wanted and hoped for and an even better rate than i expected.
Processing for about the $900 loan modification application fee as mentioned. I just mailed it back earlier this week and got confirmation processing. Essentially a single fedex sheet to sign stating very simply loan staying the same, just interest rate change, attach a check, fedex back… and hopefully poof-, same original loan/years with no restart, just adjusting/modifying the interest rate from 3.5% down to 2.5% (this was maybe 2+wks ago barely and mailed in and processing/finalizing). The break even point if this works out is just under 3 mortgage payments, so it seems to be the biggest no brainer ever. 'Confirmed' with loan consultant as best i could that there was no credit hit for this type of "loan modification" (usually this category was offered when people were underwater to avoid foreclosures/people walking away. I presume as mentioned in the thread this was for certain accounts and loan sizes to avoid people shopping and moving their loan away from bofa completely.
So essentially, no appraisal $, refi 'costs' or points, and all the paperwork hassle… really kind of too good to be true which made me a little suspicious and ask more questions.
But if it works for some people and accounts, there seems to be literally no downside to inquiring. My brother's SoCal townhome and his account didnt qualify, but he may have fewer assets with bofa, a lower loan amt and already had a lower interest rate to start with.
Good luck to anyone calling in and requesting a interest rate loan modification.
Thank to OP and people adding useful info in this thread…