I have a 3 inch strait through glass pack installed right after the y pipe, then extended pipe after the glass pack and dumped it before the axle. On deceleration i experience a popping out of the exhaust....any ideas on how to get rid of this? i love the sound of it otherwise very unique.

 

prolly a small leak somewhere

 

DFCO..can be turned off in the tuning...danny remember your truck did this

 

10-4...scared the **** out of me the first time with my loud *** exhaust

 

So say when i get a Westers tune i can get it tuned better so it wont pop?

 

Mine did that too. After I changed mixtures (EFILive) it stopped. I was running straight 3.5" after the Y, dumped infront of passenger rear.

 

I say its the glasspacks. I've never heard glasspacks on any car or truck that didn't "pop" on deceleration.

Thats trucks, camaros, mustangs, ect ect.

 

It will do it regardless of the muffler but more open exhaust like a straight through glasspack will amplify the sound. Like mentioned above; its the DFCO kicking in. Get it turned off in the tune if you don't like it, but it does help with fuel economy a bit.

 

DFCO stands for?

deceleration fuel cut off ?

 

Yep