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Cheap Ebay Headers for M62 transplanted to 4.4i X5 - Will they fit, clearance issues?
Car - 2006 X5 4.4i Plan - Take M62 ebay headers put them on X5 to replace restrictive stock exhaust manifold. Ebay has a bunch of cheap headers that are meant for a 740i/540. Our engine is based off the same block. I have no doubt the exhaust ports will line up and i'm just about certain that the passenger side will fit but the driver side might be an issue with the steering column in the way. The E46 guys, 740/540 and even 3.0 E53 X5 use them all the time with great results and actually do gain some HP. I am sure some tuning would be beneficial for HP gain but the E53 manifold is very restrictive in anyway so anything can help. Below is the manifold in question. It can be had for the low $200. As you can already see the other issues is that the mating flange that bolts up to the stock exhaust is now divided into two and not merged like our stock exhaust. Below is another picture that will correct this issue, or simply have an exhaust shop fab something. This would be a fun project before the winter. Thoughts regarding clearances?
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2006 E53 4.4i | 2008 E92 335i | 2008 E61 535xi | 2011 E70 35i Last edited by IslandRoad; 10-27-2015 at 05:28 PM. |
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#2
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Looks like a good plan so far, I say go for it, and post results here!
We have a few documented 6cy ebay headers installs here, have not seen one on the V8's yet.
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04 X5 3.0i auto 03 X5 4.6is |
#3
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I believe there was a member who put an m62 in his X out of a 7 series. The head had to be drilled and tapped because the exhaust manifold bolt holes did not line up.
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#4
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Quote:
Hmm ok this is good to know, any links? From looking at the pictures on realoem and the web it seems as though all the flanges between the two cars have all the same bolt holes. I want to gather as much information as possible though. I think a two of the exhaust pipes need to be crushed a bit clear the trans case but only ever so slightly but if i am not mistaken this was only for the older style OBX headers.
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2006 E53 4.4i | 2008 E92 335i | 2008 E61 535xi | 2011 E70 35i |
#5
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Were you ever able to fit the headers properly?
Would definitely like to see how it turned out! Cheers!
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2003 Mystic Blue X5 3.0i Sport E53 Mods: • AFE DryS CAI • DEPO Angel Eye Headlights • Morimoto HID Ballasts • Eibach Rear Sway Bar • Stainless Steel Headers & Magnaflow X-pipe • Stainless Steel Brake Lines • WeatherTech Wind Deflectors • 25mm Wheel Spacers |
#6
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Quote:
I did a bit of research and the headers are cheap, There is some denting to get them to fit along with some welding mate them up to the existing exhaust. I think its def doable if you wanted to play around with it. My biggest pain was not being able to find a used exhaust to that just bolt it up like my prior picture. Although any good exhaust shop could fab something up but I was just trying to do everything as cheap as possible.
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2006 E53 4.4i | 2008 E92 335i | 2008 E61 535xi | 2011 E70 35i |
#7
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If you are parting with your X5 and have no use for the headers, I would be glad to take them off your hands. If you still have them.
As my sig suggests, I had a BMW X5 3.0i but sadly within the past week it has met its end. I will be continuing the BMW tradition and sticking with e53 X5 but upgrading to an 02' 4.6is. These headers would be a great upgrade down the road and a great pet project for the weekends to come.
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2003 Mystic Blue X5 3.0i Sport E53 Mods: • AFE DryS CAI • DEPO Angel Eye Headlights • Morimoto HID Ballasts • Eibach Rear Sway Bar • Stainless Steel Headers & Magnaflow X-pipe • Stainless Steel Brake Lines • WeatherTech Wind Deflectors • 25mm Wheel Spacers |
#8
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Bolt holes will line up. Steering box shouldn't be a problem but if it is, add a washer on each motor mount to raise the pipes up a bit. Your starter's heat shield will get in the way.
The #1 thing you'll hate is the geometry on an e53 vs an e39 let's say, is different after the bell housing. The e53 collrctors drop way down at a sharp angle compared to the sedans so you'll have to deal with that. Just as well, the o2 sensor will/might need to be repositioned or your DME will rrad wrong and give you bad a/f ratios. Good luck.
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'03 4.6is (the wife' s ride) |
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