just got a new F-150 super crew cab awith the 4.6 engine.
I would like to install the flow master exhaust but was told that
crew cab get vib in the cab with the flow master.
can someone give me some feedbaack on this.
thanks.....

 

It still shouldn't be unruly loud, My super cab has a rumble, but you can easilly talk over it and can hear the radio just fine. I have a 40 series Flowmaster on mine, you can go with a 50 series and get a bit less noise.
Jimmy

 

I put a Flowmaster Cat-Back on my 03 S'Crew (5.4 L), and I wouldn't worry about noise with that setup. Cruising down the highway I forget its even there. With the all the cats they put on the trucks anymore its not gonna be a real loud exhaust, but you can still get a little of that classic V8 rumble when you nail the gas.

 

just put 50 series delta flow w/ 2 1/2 pipe, and 18 inch tips out the back and you dont relize its there at highway speeds. no rumble in the cab at all, got 40's on my old chevy 350 and that bad boy will talk to ya. i recommend the 50's on a new truck, just sounds better.

 

Thanks,
Will go with the 50's

 

I went with the dual rear catback Borla system and love it. It bolted right in and looks and sounds great. I have flowmasters on my mustang and I think that I perfer the sound of the Borla better.