Need your advice... I have a tire rip in the sidewall... This is probably not the sidewall but the thick rubber lip made to protrude to save the wheel from curb rash.
The tire is NOT losing any air... and no threads are bare or showing. I have 25K miles on the car and the tire.. Should I be changing the tire?? Is this safe?? Please see attached photo...

 

I think you're fine. No obvious structural damage to sidewall (any indentation or protrusion?) so you'll be alright. Pretty gnarly curb rash. Besides the tire may need replacing soon.

 

Aside from the injury to your tire (and pride) you should be OK. Those rub bumpers can only help so much when you rub against a curb. Michelins, for one, used to have a more substantial bump that really protected the rim - but more recently they seem to be more cosmetic than functional.
You could try some (black) silicone sealer to 'glue' that rubber back to the tire so it's not as ugly [by no means intended to provide structural repair as that probably isn't an issue].

 

it's fine I had one like this on my previous car and drove another 25K on this tire

 

i did the same exact thing. You're fine

 

+1 just clean tire really well and use a tad bit of tire glue the kind you plug tires with and press it down. you'll be fine.