The Titek is different. I've checked them out very carefully. Much better build quality, and the wastegate flow merge is much larger. I would have gotten one but from everything I've read, O2 housing are a major PITA to install.

 

I'll just toss this in there ...

I helped with the development of the new EvoPowerMods O2 housing/dump pipe. It seperates the WG flow from the main exhaust flow and utilized a 2" dump pipe for the WG.

One car we tested on already had an eBay style O2 that was modified for an external dump. I tuned the car and it had creep issues with the modified part ... he'd gain about 3 psi starting around 5200 RPM. This issues was completely eliminated with the EPM housing. I ended up retuning the boost curve before getting DLL results, but ended up with 5-6 hp gain up top.

I also testing the housing on another vehicle and DLL showed a 12 - 14 hp gain across the midrange that tapered off at high RPM to about 8hp I believe. This was with nearly identical load curves ... within 3-4%. Boost control was a Greddy Profec B II. Before tuning we had about 6-8 hp gains across the board again with the same boost.

Recently, someone posted a 20hp peak gain with the part (bnice ... 272s, 10.5 16G, Meth, ~29 psi). Another customer was able to run 4 psi more at peak (31 psi to 35 psi) with this part installed (LilRico ... 10.5 16G/meth/maxed WGDC via EBC). So, I honestly feel that there is power to be made with the right O2 housing. Gains are found by reducing back pressure, increasing turbine efficiency resulting in a cooler, denser intake charge ... even at the same boost level.

When I install mine I plan to run boost creep comparisons. I currently have the Megan O2 housing. The plan is to set the WGDC to 0 and turn off boost correction and see what boost I end up with on both housings.

 

The Titek is not the same unit. All you have to do is hold both units in your hand and you will see.

 

I also wouldn't even bring up external dump O2s. They work but they are loud as hell even at partial throttle boost. I had one on my 2G and couldn't stand it.

 

I don't know if anybody has seen the JMFab one but it looks damn nice. Its costs some $$$ but looking at the quality I can understand the price.

http://www.jmfabrications.com/catalo...roducts_id=288

 

I haven't seen anyone complain about the part throttle noise. The EPM part is quiet as stock until about 60% throttle. Keep your foot out of it and you don't get the noise. I drove our test vehicle for some video and actually had to try to get the sound ... it simply would not open the WG with my normal driving style.

Either way, to each his own. Sorry for the OT.

 

I've had the megan since 2 weeks after I've owned the car... if anything I can't get my boost to stop tapering... lol creep would be welcome.

 

[QUOTE=dbsears;5809968]I don't know if anybody has seen the JMFab one but it looks damn nice. Its costs some $$$ but looking at the quality I can understand the price.

Get the Titek. Its the best there is for the money.

 

Seriously guys,
Titek IS the same unit you get from some eBay sellers. Like i said eBay gets them from different factories, so they all differ a bit. Titek gets the one with pretty welds, they probably machine the inside to look all smooth and nice, stamp their nameplate on it and resell it.
I'm not saying it's bad - actually you pay for quality control and same version every time. With eBay you don't know really know which version you will get and what the divider will look like. So Titek is a good deal, don't get me wrong.
BUT IT IS THE SAME O2 HOUSING AS SOME EBAY SELLERS SELL.

If you look at the above post with JMFab - that's something proprietary that they designed and made.



Here, take a look:
Titek:


Titek inside, nicely machined:



eBay:


Another ebay with machined divider wall (by hand in a garage):



Same unit, just better quality control and machine adjustments done by shop not someone with a dremel in a garage.

 

Did you open that wastegate hole on the ebay unit?

We've had a bunch of ebay 02's through the shop and the wastegate hole is smaller than a quarter. The titek is 3x the size. The ebays have creeped, swap the titek on, no creep.

 

Here is a direct comparison, not off internet photos.

Ebay (ceramic coated buschur)







Notice how small the wastegate hole is. This caused creep on this Evo 9.

Now, Titek:





Ceramic coated as well: (next to ebay)



This solved the boost creep on this Evo 9. Also, look at the differences between the two. 02 bung in slightly different places. The collector comes together higher on the Titek then the ebay, etc.

 

They look too similar for me to sat the TiTek is definitely different. The flanges and pipes look nearly identical. I think there is a good chance that the TiTek is a modified eBay style housing. But, at least you know they take the time to make it right if this is the case ... other companies don't.

 

Well yea, how many different ways can you visually make a 02 housing?

The inside wastegate hole is what is the biggest difference here, and the biggest impact on if it will creep or not.

Also, the welds seem much better on the titek then alot of ebay 02's I have seen come through the shop. Don't get me wrong, some Ebays are fine, its a crap shoot.

 

Exactly. At least we know that the TiTek will function well. The source doesn't matter.

 

I wonder if you've personally tested the ebay and Megan O2?

I personally have the Megaon O2 and run 91/92 octane and have ran 21psi and also 25psi with NO problems of boost creep what so ever at either boost level.

Other mods: Full 3" exhaust, licp and intake.