Will Ultra Black Silicone Seal Leaky V-Bands?

Does your car feel slower than before?
Do you have V-bands everywhere like me?
Are you a rookie fabricator like me?
You need to check your v-bands for exhaust leaks because it was killing my tune in turn killing my hp

[funfun]

Why didn't you get the permatex orange high temp silicone? That's what it's meant for. And whoever welded those up, must have warped them.

[JA]

Why didn’t you use the copper one you had out next to the black?