Header ?'s

Well guys, ive determined my next and probaly final engine mod (dad is to smart for his own good ) is going to be headers. But after doing some research.. there are about 100000 diffrent types of headers! I am in need of some help. I want to have good ground clearance (cant be dragging everywhere but i dont mind goin over speed bumps very slowly etc) and i dont want to restrictive of headers. So here are some that ive come up with so far:

http://www.mustangsunlimited.com/itemdy01.asp?T1=652804+01&Category=Exhaust&CatKey=EMUSTANG

Tri-y's seem to be a popular choice. Ive heard there not to restrictive and your ground clearence is still good. Anyone vouch for this?

http://www.mustangsunlimited.com/itemdy01.asp?T1=88300+01&Category=Exhaust&CatKey=EMUSTANG


im not sure what the diffrence is between those 2 but it looks like the design is a tad diffrent. Anyone care to explain?

One last question.. how will the sound of my car be affected? I got 40 series flowmasters on there and there loud... but louder is always better right? Will the headers make it any louder/change the pitch? Thanks guys if you could just answer those questions/give me any general header advice/information that would be great. Have a good one

anyone got any more info?