Ok so lets say im in the middle lane trying to turn onto a four lane highway during rush hour, i see an opening and floor it, i get to a certain gear and i hear this turbo like wine from my exhaust that comes out the passenger side, it goes away after it changes gear, i dont know what gear it is. my engine is a 3.0l with
custom exhaust, i have done the snorkel delete mod, and the throttle cable mod. I did my own exhaust with 2 and 1/2 in pipe and a side exist with a thrush welded muffler.

WHAT IS IT????

 

I might try to record it

 

Have you tried taking the new muffler off? Then put it in the same pass situation? Is there any other transmision troubles? Like going in reverse problem.

I'm also assuming this started with the install of the new exhaust. Might be off the situation. Have you checked your transmision fluid level and color?

Do you really push the pedal to the floor? You should not need to do that if you took the slack out of the excelerator cable.

I hope I have helped.
Jim