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Old 05-30-2014, 11:44 AM   #71
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Where did you buy those header bolts?

It looks like AM sells them.
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Old 05-30-2014, 11:49 AM   #72
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NVM..different years.
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Old 05-30-2014, 12:08 PM   #73
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I did the shorty install twice as the first one (ceramic coated) developed corrosion. BBK replaced it with a new one.

Attachment 158196

Replacement

Attachment 158197

Spend additional $50-$60 for locking header bolts. It will make the install easier and peace of mind. No need to re-tighten every certain miles. Installing the clips requires lots of patience than installing the bolts.

Attachment 158198

I used these tools to install. Close wrench was used for extension and tightening the bolts. Note: DO NOT OVER TIGHTEN THE BOLTS.

Attachment 158199Attachment 158201

Also, stock gasket IMO is the best gasket to use. It's just $14 each at the oem ford parts retailer. Hope this helps.
The joy of owning the mac headers lol.
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Old 05-30-2014, 12:12 PM   #74
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Here is the bolt specs. This only fits 3.7 engine. GT may have different size. Description says 1992 to 2004 but this fits perfectly to our 3.7 engine.

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Old 05-30-2014, 12:42 PM   #75
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I can tell u from experience it's a 12 to 14 hr job on a gt. You have to raise and lower the engine several times, you need 20 to 30 in extensions to get at the cat bolts. The passenger side engine mount front to bolts are not visible and require access from both top and bottom and engine mounts need to be removed to slip the headers in. It took 2 hours to reassemble the passenger side by itself. How much speed did you do to do it in 45 min to an hour?
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Old 05-30-2014, 12:45 PM   #76
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I can tell u from experience it's a 12 to 14 hr job on a gt. You have to raise and lower the engine several times, you need 20 to 30 in extensions to get at the cat bolts. The passenger side engine mount front to bolts are not visible and require access from both top and bottom and engine mounts need to be removed to slip the headers in. It took 2 hours to reassemble the passenger side by itself. How much speed did you do to do it in 45 min to an hour?

I can be wrong but the v6 might be easier to install because there is probably more clearance then the bigger v8 engines.. I was poking around my car and the space dosnt seem to bad because I have small hands lol but we will see once I install..
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Old 05-30-2014, 12:46 PM   #77
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I can tell u from experience it's a 12 to 14 hr job on a gt. You have to raise and lower the engine several times, you need 20 to 30 in extensions to get at the cat bolts. The passenger side engine mount front to bolts are not visible and require access from both top and bottom and engine mounts need to be removed to slip the headers in. It took 2 hours to reassemble the passenger side by itself. How much speed did you do to do it in 45 min to an hour?
3.7 v6

---------- Post added at 12:46 PM ---------- Previous post was at 12:45 PM ----------

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I can be wrong but the v6 might be easier to install because there is probably more clearance then the bigger v8 engines.. I was poking around my car and the space dosnt seem to bad because I have small hands lol but we will see once I install..
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Old 05-30-2014, 12:47 PM   #78
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FYI gt takes m10 x 25 1.25 flange bolt to replace the studs. I know from personal experience and spending 15 minutes at the hardware store with the old stud to match the threads. I dropped one of the 5 that needed to replace the studs and damned if it did fall right in the cross member where I couldn't get it. My 1/2 in drive 15 mm socket is there too!
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Old 05-30-2014, 12:49 PM   #79
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I can be wrong but the v6 might be easier to install because there is probably more clearance then the bigger v8 engines.. I was poking around my car and the space dosnt seem to bad because I have small hands lol but we will see once I install..
Plenty of room under the hood
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Old 05-30-2014, 12:50 PM   #80
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FYI gt takes m10 x 25 1.25 flange bolt to replace the studs. I know from personal experience and spending 15 minutes at the hardware store with the old stud to match the threads. I dropped one of the 5 that needed to replace the studs and damned if it did fall right in the cross member where I couldn't get it. My 1/2 in drive 15 mm socket is there too!
Use a telescoping magnet
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Old 05-30-2014, 03:31 PM   #81
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I can tell u from experience it's a 12 to 14 hr job on a gt. You have to raise and lower the engine several times, you need 20 to 30 in extensions to get at the cat bolts. The passenger side engine mount front to bolts are not visible and require access from both top and bottom and engine mounts need to be removed to slip the headers in. It took 2 hours to reassemble the passenger side by itself. How much speed did you do to do it in 45 min to an hour?
Lol 12 hrs for a coyote? Holy hell have u ever done a header install on them? Took 6hrs with stops for beer. Drop the K - member and it will make Ur life a hell of a lot easier
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Old 05-31-2014, 06:49 PM   #82
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What is the supplied hardware for with the bbk shorty headers?? They don't seem to march the size of the holes
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Old 05-31-2014, 06:52 PM   #83
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What is the supplied hardware for with the bbk shorty headers?? They don't seem to march the size of the holes
Are you still doing the install today
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Old 05-31-2014, 06:55 PM   #84
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What is the supplied hardware for with the bbk shorty headers?? They don't seem to march the size of the holes
Which holes don't match?
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Old 06-01-2014, 04:14 PM   #85
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Doing install first thing tmro morning and the supplied bbk nuts to the holes that connect manifold to mid pipe will attach picture
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Old 06-01-2014, 07:36 PM   #86
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Goodluck bro. I'm still waiting for my BBK to arrived. Let me know what you think on the install and what to look for.

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Old 06-01-2014, 07:43 PM   #87
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Where's all the Mac guys!! Lol
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Old 06-01-2014, 08:09 PM   #88
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Where's all the Mac guys!! Lol

I would of done Mac but all sold out of the ceramic ones :/
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Old 06-01-2014, 08:20 PM   #89
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I would of done Mac but all sold out of the ceramic ones :/
Just messing, I wanted the mac long tubes but the shorties were
on sale. I understand about not wanting to wait. I had the wrenches out today and almost removed my shorties. Am has the Mac long tubes on sale this month, it's a hard decision the shorties are really nice.
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Old 06-01-2014, 08:22 PM   #90
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Just messing, I wanted the mac long tubes but the shorties were

on sale. I understand about not wanting to wait. I had the wrenches out today and almost removed my shorties. Am has the Mac long tubes on sale this month, it's a hard decision the shorties are really nice.

I have been hearing that the short headers don't sound good on the v6? Can you possibly try to explain the change of pitch and tone? Like did the Tone get deeper or did it just get louder?
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Old 06-01-2014, 08:38 PM   #91
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I have been hearing that the short headers don't sound good on the v6? Can you possibly try to explain the change of pitch and tone? Like did the Tone get deeper or did it just get louder?
My car with stock exhaust verses it with the shorties is quieter at idle. When im accelerating my exhaust is louder but has a deeper smoother note. Manifolds they don't help the 3.7 in the sound department much. The design of the 3.7 makes the rasp. Manifolds on a 2v-4v 4.6s sound great with aftermarket exhaust.
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Old 06-01-2014, 08:39 PM   #92
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So they create rasp? Cause my car has not sounded raspy with my current set up lol and I don't want rasp..
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Old 06-01-2014, 08:49 PM   #93
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So they create rasp? Cause my car has not sounded raspy with my current set up lol and I don't want rasp..
Sorry for the confusion the shortie headers reduce the rasp.
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Old 06-01-2014, 09:00 PM   #94
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Sorry for the confusion the shortie headers reduce the rasp.

Sweet! Hopefully my bbk shorts are as easy as your macs lol highly doubt it but here to wishful thinking thank you for the write up I really appreciate it
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Old 06-01-2014, 09:03 PM   #95
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Sweet! Hopefully my bbk shorts are as easy as your macs lol highly doubt it but here to wishful thinking thank you for the write up I really appreciate it
Your welcome, lmk if you need any advice during the install.
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Old 06-01-2014, 09:06 PM   #96
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Sweet! Hopefully my bbk shorts are as easy as your macs lol highly doubt it but here to wishful thinking thank you for the write up I really appreciate it

Would be nice if you lived near by haha but I think I should be fine.. I have my wife helping with install lol she will hold things In place for me
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Old 06-01-2014, 09:16 PM   #97
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Sorry for the confusion the shortie headers reduce the rasp.
+1

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Old 06-01-2014, 09:16 PM   #98
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Would be nice if you lived near by haha but I think I should be fine.. I have my wife helping with install lol she will hold things In place for me
My wife helped me with lining up my axlebacks. Keeping her involved helps me keep spending $$$ on mods
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Old 06-01-2014, 09:55 PM   #99
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Let us, or me, know just how the shorties feel....I'm thinking of only doing shorties on my wifes 2012.
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Old 06-01-2014, 09:57 PM   #100
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My wife helped me with lining up my axlebacks. Keeping her involved helps me keep spending $$$ on mods

+1

And yea I'll deff keep you posted but I know bigshow just did an install. Did you actually feel the added tq? I know the hp gains are minimal but they are still gains right?
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Old 06-01-2014, 10:13 PM   #101
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+1

And yea I'll deff keep you posted but I know bigshow just did an install. Did you actually feel the added tq? I know the hp gains are minimal but they are still gains right?
The increase is felt through the entire rpm band but its not like its going to pin you back to the seat. The car responds better in and out of traffic, they really help down low but can feel some up top. Ranking my mods ive had and have, I would say the driveshaft was the best, then the headers, 3rd the cai. Then axleback nothing but sound.
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Old 06-08-2014, 09:20 PM   #102
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Goodluck bro. I'm still waiting for my BBK to arrived. Let me know what you think on the install and what to look for.

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Did you get your headers installed?
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Old 06-09-2014, 05:08 AM   #103
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Did you get your headers installed?
I am still waiting for mine to get shipped.. I got my headers from autoanything which I got it for a very good price.. 242 bucks plus another 10 % for the delay of the shipment. Im still debating to install them myself but my mechanic qouted me for 150-200 for the install.

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Old 06-09-2014, 06:58 AM   #104
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I am still waiting for mine to get shipped.. I got my headers from autoanything which I got it for a very good price.. 242 bucks plus another 10 % for the delay of the shipment. Im still debating to install them myself but my mechanic qouted me for 150-200 for the install.

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I would definitely do the install yourself if you have tools and a place to do the install. Save the install $$$$ for another mod
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Old 06-09-2014, 10:26 AM   #105
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I would definitely do the install yourself if you have tools and a place to do the install. Save the install $$$$ for another mod
Do you mind if you could tell me all the tools needed for the install? Cos I will just spend the money for tools i would really appriciate it bud. Thanks

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