i need to know what everyone used for exhaust manifold bolts or studs because im looking for some to do my dual exhaust project and i really really need em. and if i were to use bolts i would need thread pitch and how long the bolt is. so im asking you guys what did ya use to put it all together? so i can get thr right stiff the first time without taking it off my cat since i do have to drive it to get to any parts store or hardware store. also what size is the o2 sensor bung? i need to find a plug fo the drivers side and i have found nothing at work to plug it with so any and all advice would be greatly appreciated thank you!