exhaust manifold bolts

[wraenking]

i was going to put on the exhaust manifold bolts and i think i have 1 bigger than the others. did i pick up the wrong bolt or is it supposed to go in a certain spot.

while im on exhaust, which flowmaster should i order, and should i just bring it to a shop to get mounted when done?

 

[mouse]

from the factory they are all the same size. Perhaps someone had to drill and tap a bigger one before you...