how hard are these to install and which ones do you recomend from hulkspeed(I was thinking ceramic)?
one of the mechanics I know said it is realy hard because the studs break all the time??

They are relatively easy to install.

Having done a 97 SSEi install on my own car. Their are a couple of hardships to overcome.

On the front. Silly heatshield on right side (PS) of motor. A bolt on the front of the motor, you can sneak past the hose and belt..easy enough..then underneath there'* another bolt holding it to the dipstick. That'* the tough one. Not impossible..simply time consuming to get at it.

The back. Not bad to get at, only thing holding up back there were the exhaust pipe to manifold studs. A good drenching of PB blaster should take care of this problem.

Overall..quick and easy. I didn't remove the airbox to do the install. Simply started off soaking all bolts w/PB and starting on the bolts going into the heads (all came out nice and easy).

I picked up my manifolds from Hulkspeed and am extremely happy with the quality and price. OleBlueEyes has another source that is less costly, however I can not vouch for quality as I haven't seen them. (And their flow numbers seem a bit off for stock manifolds..but that'* another topic)

I found the front the easiest, the rear was the PITA. The bolts on the rear mani to downpipe were really tough to get out. The only bolt I broke was on the crossover pipe, broke cleanly in two. Air tools are a must for this project.

I'm not so sure about the need for the air..(never hurts thought) I might be needing a torch for the pipe to manifold studs though.

I have an air rachet and gun so that isnt a problem. now on the coating which is best? after what happend with matt'* header wrap I dont want that happening to me.

There was something..I think someone found on ZZP'* website bout coatings. Ceramic was shown to keep engine bay temps down the best.

Impact on these bolts may snap there where using hand tools might not.