I have a 2005 F-150. I first started off with straight pipes and just recently I cut it off at the rear axle to see how it sounded. It still isn't loud enough for me!!! I'm wanting to throw on some high-flows to replace the two i have and an x-pipe then dumping it. I would like some advice on this. Thanks!

 

if u want something loud put on slp loudmouths or dynomax bullets. if you have money to spend go with a borla Xr-1 but sounds like u want something very noisy so slp or bullets would work for u.

 

Thanks man! I don't want mufflers...if thats what you mean with the slp's and dynomax. I'm just looking for new cats and x-pipe.