Are they strong enough to hold up the turbo or do they need replaced? If they do need replaced whatsize exact size are they. I know 10mm but how long and what thread?

Matt, when I bolted up my custom manifold, the bolts were more than long enough.(and I'm sure strong enough) I do think that I will be buying new high temp bolts just cause I want them to look cool, the stock bolt look like ass. IMO. Plus shoot it is only like 5 dollars worth of bolts :) To get the thread, just take the one in the lower left, or right, out and go to your local hardware stare and use it for comparison.

I studded my manifold. Those hex head bolts that come with the kits suck ass bad... studs are the way to go, i havent had 1 prob since its been studded.

yeah studded sounds good because I blow manifold bolts and the turbine to manifold bolts. I juiced those bolts up with locktite though hehe never had a problem since. Haha might have a problem taking it off now though :P well I do know the size of the hex bolts on the sides, I blew on out and got a major manifold leak.

The side bolts with the head are Metric Hex Flange Bolts that are M8x30 and are 1.25 Pitch. They're an exact match I think, it fits anyway. I got it from orchard (pretty pricey O_o) but they're grade 10.9 bwhahahah try to break that sucka!