Hey all, I used to own a 1999 F-150 XLT with a 4.2L V6. Since then I was in a wreck, and now drive an F-250 HD 4x4, suffice to say I had dual exhaust on the F-150. I went to Meineke and had them install a Cherry Bomb Vortex single in/dual out, and exited at 45 degree angles behind the rear wheels, and it sounded great. Not too loud on idle, and a nice growl on full throttle. I hear alot of people wondering what it will sound like to have duals on a V6. Personally I think they rock, very nice unique sound, not like the V8, but very nice none-the-less. If you still wanna know, check out this link for Gibson. They have sound clips of a 4.2L for both dual sport and single exhaust.

http://www.gibsonperformance.com/index2.html

In the middle of the page below the sweet looking rig and boat, click on "click here to hear how a Gibson...." About halfway down is the links for the Ford 4.2L for both dual sport and single, and also for the Explorer. Check 'em out, they sound sweet. Hope this helps out all you curious 4.2L owners, they are great trucks.

Ryan
1986 F-250 HD 4x4
4.10 gears, C6 trany
351W, Edelbrock 351 Performer intake
Edelbrock Performer 600cfm 4bbl carb
Edelbrock Pro-Flo air cleaner
Extreme 4x4 camshaft
Flowmaster 30 series dual exhaust
Custom headers
3" Warn body lift