Maybe after you get the replacement you should show a before and after, old pics vs new pics. That way people know what to look for and it still shows that they took care of you. I understand wanting to help them since they helped you but that would be a good reference for less knowledgeable forum members in case it happens again. Just a suggestion, totally up to you.

Good call, thanks for the quality control. I'm really considering getting some.

mine are at my house in GA and the wife will be sending them to me here in TX ASAP. I will then be checking mine to see how they look. I hope they are good cuz I want them on quick but if they dont look good the I will have to ask for replacements. At the price that they are being offered, as long as it is good quality material and good builds they are IMO, priced to where they should be and what others should be priced at. I agree post the new pics to show the diference and if it looks good the I think ERZ will be getting alot more business. As consumers we must demand fair prices for good products and competition is key to that.

ERZ, if you keep making good products at a fair price you will make tons of money.

edit: And so far you customer service seems to be very good too, another key factor.

Received the replacements today and went ahead and installed them. My buddy bailed on me so I had to do the whole install solo. Went pretty good though. Definitely would have been much easier with a second set of hands. One issue I ran into is that ERZ used some extenders for the O2 bungs. Well they don't have a large enough bore to fit the O2 sensor! I tried to drill it out but only had up to 1/2" bit and it wasn't enough. So I had to install everything without them. I'll see if I get a CEL...

The inlets on these looked much better than the previous set. I'll post the pics up tomorrow and take some video this weekend.

I took it for a spin and all my frustrations of the install and the O2 bung melted away. These things sound awesome and I can definitely feel the bump in power. I couldn't be happier with the performance so far. Only took it for a 20 minute drive but so far so good. I'll update with more driving impressions later on :tup:

Have someone drive your car away while you are standing there....sounds sick from outside!!

BTW - I had the same issue with my O2 extended bungs. I proceeded with the install without them. I have put about 400 miles on my car since install and no CEL :)

"One issue I ran into is that ERZ used some extenders for the O2 bungs. Well they don't have a large enough bore to fit the O2 sensor!"

I had the same issue and I also had to unscrewed the extended 02 bung and install the 02 senors without it. More then 1200 miles with the ERZ HFC and one night at the Drag Strip still NO CEL! :tup:

Good to know if hasn't been an issue so far for anyone.

ERZ, you'll probably want to send out larger ones for the rest of your orders so people don't run into this.

Here are the pics...

Stock:
http://img196.imageshack.us/img196/2...055800x600.jpg

http://img709.imageshack.us/img709/8...071800x600.jpg

ERZ:
http://img5.imageshack.us/img5/4933/p1010060800x600.jpg

http://img69.imageshack.us/img69/243...063800x600.jpg

http://img17.imageshack.us/img17/981...069800x600.jpg

Stock vs. ERZ.....and a cantaloupe:
http://img8.imageshack.us/img8/1986/p1010066800x600.jpg

http://img121.imageshack.us/img121/3...077800x600.jpg

Thats a big difference and the new ones look better than before. +1 rep

Thats a big difference and the new ones look better than before. +1 rep

Are the o2 sensors open? If so will that affect anything?

Not sure what you mean about the O2 sensors exactly. They aren't hooked up in these pics but they plug in just like stock except the bungs are extended on the ERZ cats :tup:

I guess I meant the other plugs in the pic. The short ones. I think they are used for dyno tuning. Are they open and will that affect anything.

Oh gotcha. Those are for widebands typically. They come with plugs if you don't plan on using them.

Ok cool, thanks.

Before and after vid is up (available in HD):

sounds good mine are in, gota get them install next weekend, Red is the post place open on Sats?

Cool video dude!

Sounds great. And not too loud just cruising either.

Thanks guys :) You can't even really tell they're installed when just cruising but as soon as you give it some throttle it comes alive. Still not extremely loud but it changes the tone completely. I'm finding there is a bit of rasp ~3800-4500 RPM. It's not a big deal to me though. I'm very happy overall and the power gains are definitely noticeable :tup:

@puckshaw

awesome vid! just to confirm your only engine mod you have is the ERZ HFC? Do you or anyone here know what's the dyno gains if this is the only engine mod to the Z?

thanks for the video puckshaw i was gonna get these now im gonna get them....sooner
________
red head girl Cams

Don't think anyone has dyno'd the ERZs yet. However, they should be on par with the other HFCs and good for about 15-18 rwhp.

Spearfish beat me to it. I was going to say the same thing ;)

true that any 200 cell HFC is gonna get you in that range, one companies product might look better and even be built better but as long as the cell counts are the same they will be fairly equal in gains. Same with the CAIs and CBEs.

Oh and yes my only engine mod is the ERZ HFC.

So you should have some good gains. I think, and FIs thread shows i too, that even though the HFCs should get you 15 and the CBE should get you 15 and the G3 should get you 15, that the first mod wether its the CAI, HFC, or CBE will get you that gain, but I think all the mods after that only net a few each. Fi showed that when they dynod their HFC with a CBE on already and only got about 3 hp. So I think the first mod opens things up good and the following mods only net a few. Id love to see a dyno of all three without any other mods to see what they do and then add a mod, dyno again until you have all three on and see what the final results would be.

great video.

the video is gone

Which video? The one I posted is still working for me.

the first one

she's fixed

I keep thinking about pulling the trigger on these but don't want to give up the already sweet sound I have with my FI CBE... it sounds perfect as is... gah!

just let me know when you are ready to pull the trigger.

I'm a little confused about this part of the install you guys are talking about.

Do you guys mean you are proceeded without threading the O2 sensor in? Some clarification would be awesome!

I'm looking for a more aggressive louder sound than stock...what the best exhaust for that to pair with these HFC?

The O2 extended bung is already welded onto the HFC's but there was also an additional extendor (about 1/2 inch) included. It was a little too big to screw in though I I didnt install it. Not really sure why it was included. But I have put about 1k on my car since the HFC install and no CEL...so it must be fine.

As far as the best CBE...depends on who you ask (everyone reps there own pick). If you want to check out the Invidia Gemini review...here is my thread ( http://www.the370z.com/intake-exhaus...omparison.html )

new shipment of 370z HFC and test pipe just came in today.

Will these fit an Infiniti G37 Sedan?

Coupe yes, sedan...dunno

yes this will fit all G37 coupe or sedan

Now you've caught my interest! lol

so you are on myG37.com