Just got off the phone with Tony ordering my CBE, 18" resonators and HFCs and I'm #601. He said he had shipped up to #552 if that helps you.

Quoted mid-late november which sounds about right.

There are no HP differences. The Resonators do not pose any restrictions on the air flow. The pipe is still the same diameter the entire length of the CBE or HFC, the only difference between having the resonators than not is a honey-combed envelope around the pipe to absorb the sound. There are no restrictions to the airflow. This was confirmed by Toni to me when I was ordering my FI HFC/CBE system.

Here are some pictures of my system that shows you how this is constructed. Hope this helps you out some.

Nissan 370Z Forum - PaulZ370's Album: Fast Intentions HFC/CBE System

Drone
 

I installed the cat back FI exhaust on my 2012 Z. There is a distinct annoying drone at 4000 rpm except when I have the windows rolled down. Why does having the windows down make a difference, internal pressure?

Do you have non resonated?

Resonated.

You best check your invoice, 'cause I'm 601. :)

LOL someone got it wrong... im #590!!

So, I don't have the money for the exhaust just yet... but if I order the exhaust now, Ill definitely have enough by the time it ships :happydance:

I don't get any drone at 4000 rpms. I have the 12" resonated version. I do get a little drone at 2000 but nothing crazy.

Yep, you're right. I'm #602

Dang you got yours installed already, did you clean the inside of it?

Yep, got it installed Wednesday. I didn't bother cleaning it inside. All the oil burned out after about 15 minutes of driving.

You should come check out the guy that did mine. I know it's a drive but he can knock it out in like 90 minutes. It ended up being $95 for me and he even took pictures for me during the install.

Sweet....

I got quoted $450 for HFC and exhaust install. I take it that's a ripoff?

They wanted 300 for just the catback in my small a$$ town. I just left, so i guess it depends on where you live and whatnot.