let me know how they do on the install, I ordered some too and they should get here soon. looking forward to some extra power as I lost a good bit coming to TX from GA in altitude and going from 93 oct to 91 oct.

Pics:

http://img715.imageshack.us/img715/2...036800x600.jpg

http://img163.imageshack.us/img163/9...038800x600.jpg

http://img695.imageshack.us/img695/6...041800x600.jpg

http://img211.imageshack.us/img211/3...043800x600.jpg

http://img251.imageshack.us/img251/1...045800x600.jpg

http://img130.imageshack.us/img130/6...046800x600.jpg

http://img688.imageshack.us/img688/7...047800x600.jpg

I'm going to attempt the install this Friday night hopefully. I'll post before and after vids and dB readings.

is that the connection for the o2 sensors in the pic? Looks short.

Hmm dont know if I like the looks of how things arent lining up or being straight. Let us know how they do, I might have to send them back if I dont like they way they are lining up inside.

ERZ is that normal for the insides to be not flush with the walls and all? And the slight up bend on the bolt-on part?

No those are the bungs for a wideband. The O2 bungs are much longer.

Hmm, don't know what to say about the curvature of the triple bolt flange. I don't recall having quite as crude a junction between the inner tubing and the flanges as you have there. IIRC, mine looked like your pic with the two bolt flange directly facing the camera...you can see the inner pipe just inside the flange, but there weren't any gaps or beads of weld coming through.

I'm thinking the curved flange will be ok once everything is tightened up. If I have a leak I'm sure ERZ will take care of it.

It seems like the gap in the flange and tubing is pretty similar to the last pic in your original post.

It's a little hard to tell since that part of the picture isn't in focus though.

I have curved flanges too on my ERZ HFC's. Not sure if this is an issue or not. Interested on what ERZ has to say about it.

I am hoping that the consistancy with the curves means that they intended to do this.

Yeah, I wouldn't make too much of this until someone has personally spoken with ERZ or had an issue after install. They are very receptive to phone calls and will give you a good answer.

My install went very smoothly and I've had no issues with any leaks or problem. Given the consistency of the findings, I'd talk with ERZ before jumping to too many negative conclusions.

I agree! I will give them a call today.

Thats cool, Im wondering why the insides dont look like they match up very well. Lets us know what they say.

When you do the install can you get a pic of the stock cats insides and the ERZ insides for a side by side comparison, to see how much less the restriction is? Reps if you can, thanks.

Sure can ;)

Yeah please ask them about the tubing sticking out in the inlet. I don't think grinding away at it is really even an option since it doesn't look like there's much material there to work with.

I just looked at my stock cats the other day. The difference is ENORMOUS! The stock cats are much more restrictive looking (densely packed).

give me a call tomorrow I can switch that one for you, seem like the welder was lazy that day doing that one.

I'll send that one back to the factory and get it grind.

also guys our resonated high flow test pipe is coming in two weeks for the 370z price at 199 shipped

199!!!!! for a resonated test pipe!!! Damn i just bought a set from GTM!!!

Well now...don't I wish I looked mine over more thoroughly. Fortunately they're performing really well. But who wants to have to do their own quality control?

What about the flange curvature all these guys have been noticing?

Awesome! Thanks for taking care of it. I'll give you a call on Friday to work out the details.

Yeah that doesn't seem very fair to you. I guess if you're happy with the end results it's not a big deal though?

I took a look at mine last night (deep sigh...been waiting to get them installed. Finally going on this Saturday) and it looks like they were grinded down a bit to ensure a flush connection at the flange ( So quality control was done on mine :) ).

Quality looked good on mine as well. The guys at Import Performance Specialist who installed the HFC commented on how well they grinded the inside of the pipes. I drive a lot and have already put 750 miles on these HFC in two weeks. No CEL and no leaks! :tup:

On a side note I got the new NT05 Tires mounted right after the HFC. These tires grip like no other. Makes for some really fun driving. At high speeds and cornering the NT05’s really shine. I thought the Bridgestone Potenza were a bit twitchy at high speeds not very confidence inspiring.

I spoke with Tommie @ ERZ Performance today and he assured me that the bend is intentional. He told me that each cat they make goes through a quality control process where the cat must fit into a master jig which replicates an actual install. If it fails that..it gets scrapped.

He was really friendly and knowledgeable.

I can tell a fair amount of detail was paid to mine…all the burs and welding anomalies have been filled off.

Mine are definitly going on this Saturday. I will update my thread with the videos

I recall being very impressed when I looked mine over before install. I'm pretty picky, so even though I can't recall details, they must have passed mental QC eval.

ERZ is great on the telephone. Don't be put off by some of the short, grammatically incorrect replies they post on here. These guys know what they're talking about and are very straightforward if you have questions or issues.

Just got off the phone with ERZ and I'm very happy with their customer service :tup: They've already faxed me a return shipping label and are sending out a replacement. Looks like I just got a bad apple. Glad to hear everyone else's looked good.

Don't let this discourage anyone from buying these. I'm taking down the pictures so people don't think they all look like that. This was just a bad set that slipped through the cracks. I'll update when the replacements arrive.

Thanks ERZ! :)

mine are at my house in GA, have to get them shipped here and I will give them a good look over. Need them on for mo powa. After my oil change using royal purple I swear the car feels more peppy now.

I will open each HFC before they get ship out guys.

I told the factory I care how the HFC looks on the outside and also the inside.

I will post picture for the resonated test pipe soon

it was nice talking to you, I will check before I ship your new HFC.

To ERZPOWER..
 

Did you check my e-mail?
I'm waiting for your proforma invoice and banking information.
I'm tired of waiting for your reply.

Holy mother of god...I just creamed my pants. I installed the ERZ HFC's today and omg. The sound is freekn nuts. While I was outside my car...my buddy did a hard pull away and wow...not sure what the words are to describe how sick it now sounds. And I definitely feel a HP gain. I feel the power especially on high RPM shifts; the pull is much smoother and harder going in the next gear (2rd through 6th).

Go to ERZ's web site and order NOW...don't waste any time thinking about it.

BTW - I do not get any hiss (typically with most HFC's) with my Invidia Gemini setup


I will post an updated video tomorrow on my person post ( http://www.the370z.com/intake-exhaus...fc-review.html )

Totally agree. When I put mine on, I was shocked at the butt dyno difference. I was spinning the tires with shifts into 3rd pretty easily (winter tires though) and this wasn't happening with the stock cats.

When I put the winter tires on in November, I remember being bummed out that my car turned into a granny mobile. I can't wait to put the summer rubber back on and try out the HFC/CBE combo for real.

yea man...shows just how much of a bottle neck the stock cats are. You could have the most free flowing CBE but if the exhaust gas is being dramatically slowed down before it even gets to that part of the pipes then it makes the aftermarket CBE less valuable.

HFC's = :happydance:

What are you doing online? Go drive that beast around and enjoy the new cats :).

just email you bank info today, sorry for the slow reply one of my sale staff his Wife is having a baby so he didn't come with work for like 10 days already.

let me know when its complete I will ship to Korea right away.

I'm going to UPS 2nd day air the replacement HFC to you no charge , I also did QC on you HFC.

Post sound clip here, so we can review it together.

one more think my HFC is completely T-304 stainless steel, even the flange is stainless steel (half inch thick) bracket 02 bung all stainless.

most exhaust if not all flange are not stainless you can use a magnet to check.

Awesome!!! Thanks ERZ! I'll get these installed asap after they arrive and post the videos up :tup: