on my 16' turbo, i did the cat delete with the stock mufflers, i notice a little ratty sound that almost sounds like a leak for a brief moment in the low rpms.. cant find a leak or anything anywhere. its prob just the mufflers. (although yoshi's)
No did not, have all gasket ordered from front to back. I did block to exhaust for short amount of time to pressurize system and cant seem to find any leaks. Was wondering if it was my slip ons and cat delete pipe combination causing some sort of resonance ? It really annoys me!! Ill go over all gaskets when i get home next week and go from there i guess.
I would replace the 2 doughnut gaskets on the delete pipe and see if that helps. Mine started leaking shortly after installing my delete pipe because i reused them. Anytime that seal is broken you should replace them.
Did the gaskets resolve this issue? I'm hearing it as well, after my cat delete install with original gaskets. I sprayed some soapy water on the gaskets and started it up and there are very slight leaks.