As ive been reading through all these threads on here that comes "where can i get performance for my v6". Well since most of you don't know and most of the v8 guys 
just give you crap for it i decided i will try to help out a bit.
Try these sights out it has several links to other websites as well.Now the second website is a explorer website but they sell a supercharger for the 4.0 that i seen modified to fit a v6 stang.
http://mustangworld.com/ourpics/hcar/v6page.htm
http://www.explorerexpress.com/
http://www.supersixmotorsports.com/
http://www.brothersperformance.com/p-5625-99-04-mustang-v6-shaker-hood-system.aspx
Now if your going for looks like the most of you do anyway try these
http://www.americanmuscle.com/99-04-mustang-parts.html
http://www.latemodelrestoration.com/Mustang?gclid=CI7qhObLorECFSUbQgodr279jA
http://www.myhotmustang.com/
http://www.mrbodykit.com/
http://www.uprproducts.com/mustang-accessories.html
Good blogs.
http://stangnation.com/
http://mustangforums.com/
Hope this helps for all of you.Enjoy!!!
just give you crap for it i decided i will try to help out a bit. Try these sights out it has several links to other websites as well.Now the second website is a explorer website but they sell a supercharger for the 4.0 that i seen modified to fit a v6 stang.http://mustangworld.com/ourpics/hcar/v6page.htm
http://www.explorerexpress.com/
http://www.supersixmotorsports.com/
http://www.brothersperformance.com/p-5625-99-04-mustang-v6-shaker-hood-system.aspx
Now if your going for looks like the most of you do anyway try these
http://www.americanmuscle.com/99-04-mustang-parts.html
http://www.latemodelrestoration.com/Mustang?gclid=CI7qhObLorECFSUbQgodr279jA
http://www.myhotmustang.com/
http://www.mrbodykit.com/
http://www.uprproducts.com/mustang-accessories.html
Good blogs.
http://stangnation.com/
http://mustangforums.com/
Hope this helps for all of you.Enjoy!!!