X5 3.0 Ebay headers
 

Well, I finally went for it. Bought some headers for a 330i off eBay, and got a chance to hook them up this weekend. Initial impressions are great! I think it sound amazing in conjunction with 4.8is mufflers. And, there seems to be a noticeable power bump. I'll post more thoughts once I get to test them more in-depth

https://youtu.be/fjIKys6Dljg

Nice mod and what a way to enhance the X5 3.0

Noice! Sounds bad ass!

Very cool.

Did you have to replace any studs? Any major complications?

Any check engine lights?

Yeah, The nuts were sized to the studs. So, when I unscrewed them, the stud unscrewed from the head. I figured that I might as well replace them all. No major complications. I did have a shop cut and weld new flanges on the mid pipe to make it fit. But, I was expecting that. For the check light, I flashed my DME with the Euro 2 tune. It deletes the post cat O2 sensors and the secondary air pump. No check light for me :thumbup:

^^This is AMAZING, if I didn't have emissions every 2 years now I'd consider it - I would assume it would work in conjunction with the Conforti Shark Injector I have now - prob just reinstall stock tune, flash DME to Euro 2, and then reinstall Shark on top of it.

Any smell from the cats deleted or no?

Awesome! As RB said if I had no emissions I would definitely do this.

Do you have emissions testing?

The tune will show up on an emissions test as a "fault" (for lack of a better term).

I have headers sitting in my living room for my Z, reasons for the questions. I plan on using mechanical cat simulators and just simply leaving the sap disconnected from the exhaust. I guess I need studs too:)

Obd readiness is the word I was looking for. Some emissions testing facilities will not fail you on one not being ready. I've read Texas is one state. I have yet to check my state, but if your state allows two readiness faults, then the tune would work.

^This is correct - has to pass readiness - in Jersey if you are catless you cannot tune out the CEL - you have to play with o2 spacers so the readiness passes

Yeah! luckily we don't have emissions here. What RB said is correct. If I had to pass emission readiness, I'd flash back to a US tune and play with the 02 sensors. RB, It actually doesn't smell much at all. Seems like it could pass a sniffer test... probably not. But, maybe... Did some research, and it looks like the shark wont be compatible. I'll need to confirm it. If I go the shark route, I'll flash back to US and play around with some spark plug non-fouler's

I'm no expert on the subject, and things vary from state to state, but here's what I've learned on the obd emissions check. There is a difference between "not ready" and n/a or not available. Not ready will fail you. In my state I can have two not readys and pass. 3 and your failed. However, with the Euro 2, it simply shows n/a for the SAC and post cats etc. "N/A or not available" would pass the readiness test. Your still not out of the woods completely, as a technician/inspector could still technically flag it. If you installed a set of cats after the headers, with o2 ports, you'd likely pass the visual.

One small caveat, you will have to jumper a wire in the cluster. I'm fuzzy on details, but there is an mil check as well when they do a readiness test, and there is an easy work around. A Google search would give you details.

I guess I need studs too:)

You called? heheh

Hey thanks guys.

I think Im gonna try mechanical cat simulators and disconnect the sap from the manifold, but leave it operational. I still have to go through smog and if they see anything they're going to flag my car meaning under the hood inspections from here on out which I don't need. I am courious as to how many readiness faults Oregon allows..... The kicker here is that only Portland metro requires a smog check. If I just moved out a lil further I wouldn't have this delima. But hey, makes it fun right?