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Header install tips...

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Old Jun 29, 2010 | 07:54 PM
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Default Header install tips...

Ok all... My headers should be here this week. That and I think some other members are planning on picking up a set...
Anyways... What are some installation tips you guys who have them can give to those of us that don't yet.
Thanks,
Chris
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Old Jun 29, 2010 | 08:19 PM
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to remove the old rear manifold, you must remove the rear valve cover, REPLACE THE FLEX SECTION, dont ask just do it lol soak all the studs with pennitrating oil start now...











GO!!


















Why are you still sitting here reading this? GET THE LUUUUUBE GOIN
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Old Jun 29, 2010 | 08:21 PM
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Originally Posted by 2005gxp
to remove the old rear manifold, you must remove the rear valve cover, REPLACE THE FLEX SECTION, dont ask just do it lol soak all the studs with pennitrating oil start now...


GO!!



Why are you still sitting here reading this? GET THE LUUUUUBE GOIN
^hahahahaha
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Old Jun 29, 2010 | 08:23 PM
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I had my transmission out and the car on a lift when I installed my headers. It was a breeze. The hardest part was getting the oil dipstick out. That was a BITCH. Other than that it was no more than a 1/2 hr to 45 min. install. Having the trans. out of the way and the car on a lift made a HUGE difference.

-Mike
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Old Jun 29, 2010 | 08:35 PM
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I had her on up on all four,work from top and bottom...
All can say is take your time and be patient...

















LOL
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Old Jun 29, 2010 | 08:44 PM
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Yeah post 420 I'm sooo wasted!!!
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Old Jun 29, 2010 | 09:21 PM
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Thanks guys... Keep'em coming!

So this flex section... Will that come with or do I need to get one?

I will start the penetration tomorrow... Ha...

Mike, that probably would make it a ton easier but I'm not going to pull the trans for some little ol headers lol... Thanks for the suggestion though
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Old Jun 29, 2010 | 09:44 PM
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flex comes with, but you will want to replace it since it makes noise, theres a thread about it here search for header whistle
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Old Jun 29, 2010 | 09:59 PM
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Originally Posted by 2005gxp
to remove the old rear manifold, you must remove the rear valve cover, REPLACE THE FLEX SECTION, dont ask just do it lol soak all the studs with pennitrating oil start now...











GO!!


















Why are you still sitting here reading this? GET THE LUUUUUBE GOIN
I didn't remove the rear valve cover just got it up on the lift







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Old Jun 30, 2010 | 01:07 PM
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If I didn't replace my trans. at the same time I wouldn't have pulled the trans. do them either. Trust me I wasn't saying to pull the trans. I was just saying what I did. I am sure you'll have to work from up top to do yours. It shouldn't be that bad. Once the stock manis are gone it will make things alot easier. The stock mani's take up more room than the headers do.

-Mike
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Old Jun 30, 2010 | 05:20 PM
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Is there a jegs off the equivalent to the flex tube in the header whistle thread? I'm going to go ahead and put a cut out in in place of the cat... The o2 sensor in front.
Then I'm going to run it into the stock cat back for now... Do I want to do it all at 2.5 to stay consistent out of the header?
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Old Jun 30, 2010 | 07:35 PM
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The header collector is a 3" od, not a 2.5. I used a 3" flex on the header collector and then welded a non-cat (lol...) and then a straight pipe to the rest of the cat-back. I used all 3" until the cat-back. Came out great. The headers made my exhaust sound more of a low rumble and took away some cabin drone. Makes me happy.

You'll be surprised on how good the stock exhause manifolds flow. When I took them off I couldn't believe it. They ARE pretty damn good from the factory. One of the best I have seen. The headers look alot better and have a tuned front and rear header collectors. I noticed more power and better sound. I also wrapped the flex in header wrap before I put the X-over on.

-Mike
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Old Jun 30, 2010 | 08:45 PM
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Thanks mike... That's kind if what I thought... Just wanted to make sure... So what flex did you use? I don't really want to wrap it since it is a daily driver in all 4 seasons of conditions
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Old Jun 30, 2010 | 08:58 PM
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I only wrapped the flex on the X-over since it whistles. The header wrap got rid of some of the whistle. I didn't wrap the flex on the end of the collector under the car. I used a stainless steel flex from ZZperformance. Look on thier website under exhaust and they have various sizes.

-Mike
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Old Jun 30, 2010 | 10:06 PM
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I thought the whistle was coming from the flex pipe?
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Old Jul 1, 2010 | 03:49 AM
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So is it a big deal if you dont wrap it or replace it? getting ready to do headers on mine and would like to know, thanks
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Old Jul 1, 2010 | 06:51 AM
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Hey ak Man,
Well I was a little confused... Mike wrapped the crossover pipe (not the flex like I keep thinking).
From my random gatherings I've discovered that you should indeed change the flex pipe... it's about 4 pages into the header whistle thread.
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Old Jul 1, 2010 | 07:56 AM
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Yup change it!!, I'm stuck with that whistle for abit, I have a new flex at home but I,m not getting it changed until August or next summer.

Its annoying.
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Old Jul 1, 2010 | 08:57 AM
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ill be getting my flex changed when i have my 3" system ready to go on.
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Old Jul 1, 2010 | 01:41 PM
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There is a flex on the X-over that is the one I header wrapped. You can't miss it...

-Mike
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