So You guys have the Vortexs on your F-150s eh? I had a SI/SO on my Dodge Dakota. I thought it sounded O.K., but it was not loud enough, in my oppinion. I was debating on getting the same set up on my F-150, except Dual out this time with 3' and big tips. Did anyone notice you fuel milage change (hopefully for the better). I have a few debates also, Should I do 2.5' or 3' from the muffler back or no? The other question I have is, has anyone compared the Vortex sound/performance to the Ravin sound perfromance? If so please let me know. Also, if anyone needs to know where to get the Vortex up here in Ontario Canada, I know a shop that has them.
Thanks
O

 

I am wondering the same thing. How is the Ravin compared to the Vortex. Right now I am running Flowmaster 50 series SI/DO and I want much louder!