Just bought an 09 GT 45th anniversary. I knew when I bought it that the exhaust had been swapped out from when I started it, well I changed the oil and was doing some snooping and saw that it had factory headers into BBK straight pipe all the way into magnaflow mufflers. So now I'm wanting to swap the headers out for something a little better flowing than the factory headers. My problem is that I don't know anything about long tube or short tube headers and none of the sites I've looked at have listed dimensions compared to stock. So I was wondering if anybody knew of and headers that would match the factory length dimensions. The help Would be appreciated. Thanks

 

Long tubes won't match up and shorties aren't worth doing. Cost vs gained hp is nominal.