headers and cams?

[silversurfer03]

I was wondering wat the best brand of headers and cams i can get for my car would be also how would i find out wat kind of gears i need for my car? this will be my first modification to my 03 GT so im new to all of it. thnx for the help

 

[Mustangog2003]

I have 4.10s, BBK longtubes, and comp cams. I made 290 and 298 with all the bolt-ons. I think im changing to 4.30s but the 4.10s worked well. There were no fitment problems with the headers or anything so BBK would be your best bet price for performance.