Anyone throw on a Flowmaster FlowFX Cat-Back?

[derek_05_07]

Has anyone thrown on the flowmaster flowFX cat back for their 5.3 TB yet? Want to pull trig just want some real world reviews on it compared to a lousy YouTube video

[econometrics]

Following. 
 

Whats the cost on this system, btw?

[TNTSierra]

My only concern with Flowmaster is the DRONE! My father has it on his 09 F150. It sounds great on start-up and taking off, but it is obnoxious on the highway. He doesn't notice it as much, because he is getting older and losing some of his hearing, but I can't stand driving in it. 

[JR09country]

I have the just the flowmaster FX muffler on my 5.3l and it's great. No drone, not to loud, just right.

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[Ed/2020RST]

I installed one on my 2020 just yesterday. When the DFM kicks in it does however sound kinda weird!!  I am happy with the sound, no noticeable drone, but still up in the air on any gains it may have given as far as MPG or HP.