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Old 02-25-2013, 08:05 PM   #15
litle88
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The Stage 8's are bud, I see the ARP's might be a Lil easier.
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Old 02-25-2013, 10:47 PM   #16
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So now I am looking at ARP. Seems like it has a cleaner look to it. Anybody have direct links to what I need for my L99? I think I am going more for the ARP Bolts and not the studs.
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Old 02-26-2013, 12:13 AM   #17
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Quote:
Originally Posted by rberns View Post
One of the guys I talked to said that I will need to retighten my bolts if I choose to go with the OEM bolts and I know that he torqued them down to the correct specs.
It's common practice to go back over any exhaust installation to make sure the bolts didn't loosen up with the constant heat and vibration. You should just have to recheck them once. I guess the stage 8 bolts wouldn't need that but it's not like it's a PITA to spend 15min with a Tq wrench, checking the 12 header bolts. FWIW, not a single one of mine was below tq specs after 1k miles. I'm using the OEM bolts as well. I've never heard of anyone having a issue with the OEM gasket or bolts.
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Old 02-26-2013, 12:23 AM   #18
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Stage 8s are good in theory and poor in practice. Will they prevent a bolt from loosening (out)? Yes. But what happens when they get a little loose? Now you have a bolt being fatigued for no reason and a stupid metal clip digging into your header. At that point the bolt is already useless, tighten it and it will just come loose again. 16 rattling reasons for the knock sensors to pick up false knock is not my idea of a good time. Nothing wrong with factory bolts.
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Old 02-26-2013, 12:24 AM   #19
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Arent there only 10 bolts
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Old 02-26-2013, 12:28 AM   #20
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Originally Posted by Fast6.3 View Post
Arent there only 10 bolts
I had to look at a pic from Jannetty. There are 12 holes in the header flanges.
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Old 02-26-2013, 12:45 AM   #21
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I'm curious if anyone has ever had a leak from the stock bolts and stock header gaskets becuase I havent heard about any problems. Seems to me stock has worked really good.
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Old 02-26-2013, 06:52 AM   #22
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i went stock and had no probs at all
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Old 02-26-2013, 10:46 AM   #23
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We will only use new GM factory exhaust manifold gaskets on all header installs. They are usually much better quality than anything you will get with the header.

We always use anti-seize on either the bolts that come with headers or the factory bolts. Tighten them down correctly (center working out side to side), get it hot once or twice, recheck them, and they will usually stay tight with no problem. If you're worried about it, check it a year later, but we've never had problems using anti-seize; plus you will be grateful you did when you take them off for whatever reason down the road. While ARP and Stage8 bolts do look nice, IMHO they aren't worth the cost unless you go with a super cheap set of headers.

Feel free to call, email, or PM us anytime!
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Old 02-26-2013, 12:15 PM   #24
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I have Stage 8 locking header bolts on my car currently, not as big as a "PITA" as some may make it seem. There's really nothing difficult about bending a metal tab against your flange. After breaking an OEM bolt, and having to re-torque them down after my LT install (heat cycles), I didn't want to deal with the oem bolts anymore, so I got the Stage 8's from TSP.
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Old 02-26-2013, 03:55 PM   #25
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ARP Stainless Steel Header Bolts 434-1202
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Old 02-26-2013, 03:56 PM   #26
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I used percy locking header bolts I reccomend them as well wag better then stage 8
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