Yep, CBE then added the HFCs. It's about 10dB louder in the car. I find that it's right where I want the loudness now and not too loud by any means.

Check out my other thread. I reviewed all this stuff at length.

Well I called ERZ and spoke with one of their sales reps. He told me that you can buy the angle anti-fouler separately at ERZ $34.99 a piece or $69.98 for the pair (Link Below) but said it was not part of the 370z HFC purchase. I also purchased my HFC after reading your review spearfish25, so maybe you got lucky it was included or maybe I just got unlucky it wasn’t.

Either way I am going to have it installed tomorrow with out the angle fouler extension and see what happens. If I throw a CEL light then hopefully ERZ will send me the anti-fouler extension. I just don’t want to pay for something I may not need.

ERZ HFC Anti-Fouler Link: ERZ performance CEL Eliminator Fix O2 Sensor Housing

Yeah, I actually called them when I received the HFCs to inquire about the anti-foulers. They made it sound like they would be included with all the sales, but perhaps they just threw them in with my order.

I'd just give it a try without them and see what happens. At least you have a manufacturer produced option if you do have a CEL. They are just two more things that can loosen up with time, so avoiding them might be worthwhile if you don't throw CELs.

Yeah I'm just going to have the HFC installed tomorrow without the anti-fouler extensions and see what happens. I am really looking forward to the extra power and sound these things are going to produce!

our resonated test pipe is coming , the 02 sensor is more extended because of Cel issue.

well ERZ HFCs are on the way. I will do a sound clip/vid of them with my FI CBE. Should sound pretty good and hopfully Ill gain some HP/TQ to make up for the loss of going from 93 to 91 oct and going up in elevation.

looking at buying the ERZ... any word yet on the gains?

Don't know about any dynos of the ERZs specifically, but all HFCs will have similar gains, give or take, but the differences between them all are insignificant IMO.

The ERZs are great though. I have them on my G37 sedan. :D

My ERZ hfc's finally gave a cel of P0420 after about 3000 miles. I cleared it and it hasn't come back yet. I might need the right angle o2 extenders.

None for me yet but I probably only have about 2k on them so far. And I didnt use the extender at all just some steel wool.

try some steel wool.

My CEL (SES) light is coming on more and more frequently now. First time it came on in 1 year, then after 600 miles it came back on. I might have to get the extended bungs.

What I would like to know is why did it take 1 year for it to come on, and why now it's coming on so quickly?

If the catalytic material is braking down and not doing it's job then it will happen this way. It's not properly scrubbing the exhaust.

get this

http://www.cntracing.com/v/vspfiles/.../CELFIX-2T.jpg