Ive had the 4" flo pro with inline muffler for about a month now, the exhaust is very loud, i thought for sure with an inline muffler it would have muffled it.. not really. when i hit the exhaust brake when idling the whistle is crazy loud.. what can i put on to muffle this whistle?

(please dont tell me to put the stock stuff back on because it aint gonna happen)

 

So you dont want a stock muffler anymore? I'll tell my bud never mind when he calls me back. But yes you will need more muffler than you have or get rid of your vgt

 

Red I meant the DPF and stuff. I just ordered a FTE resonator. FTE Resonator / Muffler 4" x 30" Aluminized - Resonators / Mufflers

we'll see if this does the trick?!