Is a backfire common to LT5s?

[coltmckinney]

When I am going 30-40mph and let off the gas to downshift, I hear one distinct backfire then that's it. Is that common?

[bans25]

When I am going 30-40mph and let off the gas to downshift, I hear one distinct backfire then that's it. Is that common?

With headers.. yes its common

[FU]

The backfire is in the defueling in the chip. Take the chip out or have another done and tell the tuner about the problem.