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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Headers-Driveway Install



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      07-28-2015, 07:59 AM   #1
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Headers-Driveway Install

Thinking about trying to install my AA Headers this weekend in my driveway. Do y'all think it's possible? Or would I need a lift?
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      07-28-2015, 08:49 AM   #2
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theres a diy on someone doing supersprint headers in their home garage so i would think its possible
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      07-28-2015, 09:03 AM   #3
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Originally Posted by E90joee View Post
theres a diy on someone doing supersprint headers in their home garage so i would think its possible
Nice, I haven't seen that thread yet. I put the car on jack stands. Looks feasible but I'm realizing I have no idea what the torque specs should be. Anyone know?
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      07-28-2015, 09:07 AM   #4
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http://www.1addicts.com/forums/showt...php?p=13506265

hope that helps..not too sure about the torques
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      07-28-2015, 09:58 AM   #5
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Shouldnt be too hard.. from my experiences with other cars, something with a swiveling head makes things way easier to get to the nuts on the head studs
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      07-28-2015, 10:05 AM   #6
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You can definitely do it on jack stands, and since your RWD you should have plenty of room underneath the car. Don't loosen the midpipes, disconnect them. That way they won't be in your way when you take off the manifolds. Also remove all the o2 sensors first, and like SDemetris said have a swivel head extension because some of the nuts are at weird angles. Good luck!

FYI, torque spec for nuts to cylinder head studs are 15ft/lb.
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      07-28-2015, 10:15 AM   #7
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Quote:
Originally Posted by MBP0202 View Post
You can definitely do it on jack stands, and since your RWD you should have plenty of room underneath the car. Don't loosen the midpipes, disconnect them. That way they won't be in your way when you take off the manifolds. Also remove all the o2 sensors first, and like SDemetris said have a swivel head extension because some of the nuts are at weird angles. Good luck!

FYI, torque spec for nuts to cylinder head studs are 15ft/lb.
Thanks!
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      07-28-2015, 10:30 AM   #8
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I did my AA header install in my apartment garage on jack stands, took about 6 hours. I googled N52 exhaust manifold torque specs.
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      07-28-2015, 10:42 AM   #9
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Yeah it's very easy on these cars. Plenty of room to work with, especially compared to most BMW header installs. Get new hardware/gaskets and don't be surprised if an 02 sensor or two dies shortly after the install. I found no need to remove the midpipes, YMMV.
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      07-28-2015, 10:54 AM   #10
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Quote:
Originally Posted by TheSt|G View Post
Yeah it's very easy on these cars. Plenty of room to work with, especially compared to most BMW header installs. Get new hardware/gaskets and don't be surprised if an 02 sensor or two dies shortly after the install. I found no need to remove the midpipes, YMMV.
Nice, how's your setup holding up by the way?
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      07-28-2015, 11:01 AM   #11
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Be sure to mark your 02 sensors (forward and aft) so you don't mix them up. While it may not matter with the cats removed, it's best to not mix them up.
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      07-28-2015, 11:30 AM   #12
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Quote:
Originally Posted by RazRokz.! View Post
Nice, how's your setup holding up by the way?
Perfect. Not a hint of a leak or any issue in general. Money well spent.
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      07-29-2015, 06:40 AM   #13
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What tools did you guys use because my first attempt with hand tools I failed miserably, I couldn't unbolt the bolts that connect the headers to the midpipe so I gave up and said I will try a second attempt another day with an electric impact wrench next time.
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      07-29-2015, 07:43 AM   #14
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Quote:
Originally Posted by TheSt|G View Post
Yeah it's very easy on these cars. Plenty of room to work with, especially compared to most BMW header installs. Get new hardware/gaskets and don't be surprised if an 02 sensor or two dies shortly after the install. I found no need to remove the midpipes, YMMV.
From some of your DIY pics, it looked like your car was on a lift?

I would think this would be somewhat difficult on jack-stands, or they would be pretty tall jack-stands, no?
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      07-29-2015, 09:54 AM   #15
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Quote:
Originally Posted by Delusive View Post
What tools did you guys use because my first attempt with hand tools I failed miserably, I couldn't unbolt the bolts that connect the headers to the midpipe so I gave up and said I will try a second attempt another day with an electric impact wrench next time.
I just used hand tools, but the car also only had 10,000 miles on it when I did so.

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Originally Posted by mlifxs View Post
From some of your DIY pics, it looked like your car was on a lift?

I would think this would be somewhat difficult on jack-stands, or they would be pretty tall jack-stands, no?
It was on my lift, but I see no reason that would be required. You just need jackstands tall enough that you can get under the car with a bit of room.
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      07-29-2015, 12:42 PM   #16
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Did mine in a small garage on jack stands. Wasn't difficult, technically, but sure was a pain in the ass.
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      07-29-2015, 12:46 PM   #17
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you ll be fine if you have tools.
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      07-29-2015, 04:07 PM   #18
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Quote:
Originally Posted by avocet View Post
Did mine in a small garage on jack stands. Wasn't difficult, technically, but sure was a pain in the ass.
Exactly! I have all the necessary tools and such, and I got about an hour into the install and decided it was not the type of fun automobile work I enjoy. So, I said screw it and put my car back together. I paid a local shop $400 to do the header install.
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      07-30-2015, 04:47 AM   #19
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Quote:
Originally Posted by Delusive View Post
What tools did you guys use because my first attempt with hand tools I failed miserably, I couldn't unbolt the bolts that connect the headers to the midpipe so I gave up and said I will try a second attempt another day with an electric impact wrench next time.
Breaker bar, mine are rusted so same problem.
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      07-30-2015, 04:51 AM   #20
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Got some bad news today. Not sure if I'm going to install them. Received notice that I'm on orders to California. Originally I was supposed to go back to Kansas. (No emissions laws) IIRC, California still does smog, sniffer and all that other nonsense. Anybody here in California with headers? Police bother you about the extra noise etc. ? How is it?
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Last edited by RazRokz.!; 07-30-2015 at 04:52 AM. Reason: typo
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      07-30-2015, 06:14 AM   #21
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Quote:
Originally Posted by RazRokz.!
Got some bad news today. Not sure if I'm going to install them. Received notice that I'm on orders to California. Originally I was supposed to go back to Kansas. (No emissions laws) IIRC, California still does smog, sniffer and all that other nonsense. Anybody here in California with headers? Police bother you about the extra noise etc. ? How is it?
My friends with full on straight pipes (catless headers, no secondary cats, no resonator, no muffler) haven't been bothered yet, it really depends on the cop and where you live. So far no cops has pulled me over for exhaust being to loud and hoping it stays that way after I install my catless headers.
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      07-30-2015, 09:25 AM   #22
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Quote:
Originally Posted by RazRokz.! View Post
Got some bad news today. Not sure if I'm going to install them. Received notice that I'm on orders to California. Originally I was supposed to go back to Kansas. (No emissions laws) IIRC, California still does smog, sniffer and all that other nonsense. Anybody here in California with headers? Police bother you about the extra noise etc. ? How is it?
Are you Military? Register the car in your home of record state and give California the finger. Permanent residents are required to register the cars in Cali, military do not need to. When I was stationed there, I was pulled for a few things but each time, showed my Florida registration, drivers license, and mil ID, and they could do nothing. I had warnings after warnings for no front plate, no smog, I would tell them thanks and have a great day, never a ticket.
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