Here's a video of the sound I'm hearing. All symptoms and whatnot point to precats but I want to be sure. Found out my flex pipe is damaged and leaking yesterday so I think I'll just wait it out for headers if you guys all agree its precats.

Sorry I know there's a million threads on this already but I hear mine as low as 1500 when I let off the throttle every single time.

 

Probably is the pre-cats I had the same sound on my 03 and then 02 a little the same sound but put Headers on...Here is a Vid of a Vid you can hear when let off the pedal....think its the same sound



Had same little sound on 02 not as massive but didnt get a Vid...GL...Pre Cats really suck and for some kills there engines....

 

Same sound I had when my rear pre-cat was failing

 

+1 on rear precat failure...

Started to happen to me till I gutted them...

Rods03max619...
I hear that squeak once your rpms drop...
Tb??
Mine does the same thing after dropping 1000 rpm...