Headers. Bolt on, hold on and try to not grin like an idiot.

[Plattus1000]

Originally Posted by PropellerHead

Funny, isn't it? How threads ramble along and become something different than what- and even where they started. Like this thread, for instance. Not a peep about the OP's E53. Funny, too that no one's mentioned the E53 in six months.

The lifeline of a thread- like that of most things- makes relevance anything but binary.

The e53 is still parked outside, for sale. She, the wife got sick of little things getting her x5 to not be her "perfect" little rig. So she bought a volvo xc wagon and loves the crap out of it. I'm left to either keep the X5 or sell it.

The headers are designed for the 4.9 s62 but the blocks line up with the ports and with modifications, the m62's should all be able to benifit from headers not just these or supersprint.

I'm using these on a 4.6 in my wagon (plans to s/c) but there's no real difference in the geometry from wagon to SAV. A slightly more aggressive turn down at the collectors but testing in the wagon or X5 should be irrelevant.

You're all correct. It was rude to stop posting. Photobucket has me playing catchup on many years of posts. I'm getting to my bmw sites.

[bcredliner]

No, not funny.

Yes, started 6 months ago. That's called hijacking a thread, bozo no no. FYI-there is an E39 forum or you can start an E39 thread and see what happens.

[PropellerHead]

Originally Posted by bcredliner

No, not funny.

Yes, started 6 months ago. That's called hijacking a thread, bozo no no. FYI-there is an E39 forum or you can start an E39 thread and see what happens.

I don't have to start an E39 thread. We're in one.

[crystalworks]

I'm confused...

Was just waiting for a response from OP on his unicorn header's numbers... because they might work on a v8 E53. Not that I was ever super optimistic that the cost/performance ratio would make any kind of sense. It was still a very cool set of headers and would be nice to know if they made modest power.

[PropellerHead]

Originally Posted by crystalworks

I'm confused...

Was just waiting for a response from OP on his unicorn header's numbers... because they might work on a v8 E53. Not that I was ever super optimistic that the cost/performance ratio would make any kind of sense. It was still a very cool set of headers and would be nice to know if they made modest power.

If it matters, I think you're not at all confused.

We are all curious about the experience of these headers on an E39 because it's the only application we have to discuss rt now. Hopefully the OP will have some time to update us on how they're doing in his car.

[bcredliner]

Originally Posted by PropellerHead

If it matters, I think you're not at all confused.

We are all curious about the experience of these headers on an E39 because it's the only application we have to discuss rt now. Hopefully the OP will have some time to update us on how they're doing in his car.

If you look back in the thread there were several members following the thread that have E53s even 4.6s that are interested in the outcome of OP project. If OP doesn't update his thread thats fine, that's his call.

It is disrespectful to hijack a thread. It is common courtesy to stay on topic. You have been around long enough to know this. If you would like to discuss e39 application the proper thing to do would be to private message him.

[PropellerHead]

Originally Posted by bcredliner

It is disrespectful to hijack a thread. It is common courtesy to stay on topic. You have been around long enough to know this. If you would like to discuss e39 application the proper thing to do would be to private message him.

I'm sure the OP appreciates your guidance. But since you called him a 'bozo,' maybe he would be less inclined to consider your input. Perhaps he should never have brought up his E39 the first time. In his own thread. Tough thing to do: Hijack one's own thread.

Originally Posted by bcredliner

Yes, started 6 months ago. That's called hijacking a thread, bozo no no. FYI-there is an E39 forum or you can start an E39 thread and see what happens.

Give it a rest. Threads move around on topics. The E39 has been a discussion point for these brought up by the OP. In the very 1st post:

Originally Posted by Plattus1000

The E39 is an aging model, everyone else has moved on. Well, I don’t really care about everyone else. If you’re reading this, and you’re like me, we are not ready to move on and let go. In fact, we find every excuse to dump more money into the beast. I plan to keep my E39 M5 for as long as I can. We will all be probably driving electric vehicles in 10 years, but the legacy of the gasoline engined e39s will forever be a permanent part of my life.***

He even brought up FI in the E39 first. He talked even MORE about his E39 again, in *more* 1st hand detail over a year ago:

Originally Posted by Plattus1000

I am running a 4.6 in my wagon and plan on installing these with before and after dynos. All questions should be answered there.

snip

If I went VF supercharger, for $5-6k I get a kit and for another few grand in testing/tuning/parts I finally get it up and running, I'd worry about things breaking. With headers, these headers, after the install and tune, I'm not only not worried about things breaking, I am not wondering of I could have passed up on better headers.
People who've gone evolve or SuperSprint sometines question if they should have gone with another setup. I won't be doing that.

Now if the gains are above 40hp, I'm totally happy and if I can hit that mark in torque, also thrilled.

It will make the power loss from running a supercharger (50hp to run the damn thing) seem not so noticed. But, even if I decide to keep things naturally aspirated, what fun it'll be.

Wait till they get installed and I get some real numbers off the dyno and then we'll know. I have high hopes.

snip

-side note-
My goal in the entire engine swap on my wagon was to beat M5's.

My goodness, even YOU replied ab the badges for his (GASP!) E39.

Originally Posted by bcredliner

I would use the stock designation. Sleepers are tons of fun.

Where was your disdain for topics not E53 then? Sounds like your problem runs deeper than thread content. Maybe you can look into that and discover what about this problem keeps you so distant from landing a solid point. So far, all you've offered is a mess that contradicts the content within this thread from the very start and your very own contribution a few months ago.

[crystalworks]

I was wondering where the thought of hijacking an e39 thread was coming from also, this being an e39 thread.

The OP started the thread because he's running a 4.6 and thought the headers might apply to e53's as well. Showing off a nice set of headers is always nice, but I think it may have also been to try and drum up interest in a seriously pricey mod. Not going to have much luck on that with these vehicles now being had for easily in the $5k range for a rough one, and only $12k-ish for a good one. Hard to justify 50%+ of purchase price for a mod that (I think) is going to net ~10-20rwhp on an m62b46 with no other mods.

[PropellerHead]

Originally Posted by crystalworks

I was wondering where the thought of hijacking an e39 thread was coming from also, this being an e39 thread

+1

E39's from the very 1st post. I still find it funny. But I suppose I shouldn't. A disrespectful Bozo's thread hijacking from his own disrespectful off-topic thread is a very serious issue. This thread should be moved to the E39 forum... oh wait.. We don't have one of those here. Anyone who wants to discuss this should do it privately. It's just not one of the things we do around here.

I mean. Unless we already did, of course.

Well, clearly then the only solution is to remove any reference to the E39 and replace it with the word Rainbow. I have just the visual taken from some serious chill out time yesterday. I give thee.. Unicorn and Rainbows!:

[X53Jay4.8is]

Originally Posted by crystalworks

I was wondering where the thought of hijacking an e39 thread was coming from also, this being an e39 thread.

The OP started the thread because he's running a 4.6 and thought the headers might apply to e53's as well. Showing off a nice set of headers is always nice, but I think it may have also been to try and drum up interest in a seriously pricey mod. Not going to have much luck on that with these vehicles now being had for easily in the $5k range for a rough one, and only $12k-ish for a good one. Hard to justify 50%+ of purchase price for a mod that (I think) is going to net ~10-20rwhp on an m62b46 with no other mods.

The Guy that makes the headers that was referenced by the OP is m5jed on the M5 board /forum. He is easy to get a hold of if you want to find out details of the headers and what they produce. I know him because I have an E39 M5 and have bought some parts from him. I just purchased a lightened dual mass flywheel for my clutch upgrade on the M5.