Fast Intentions exhaust is here! (continued)

AreJay · 08-08-2012, 01:42 PM

Is the non resonated a lot louder then the 12' resonated exhaust. There's a used non resonated for sale in the forums and I'm considering buying it. The hp gains between the non resonated and resonated are they same right?The resonated are just more quiet?

KaienZ34 · 08-08-2012, 03:02 PM

Quote:

Originally Posted by AreJay

Is the non resonated a lot louder then the 12' resonated exhaust. There's a used non resonated for sale in the forums and I'm considering buying it. The hp gains between the non resonated and resonated are they same right?The resonated are just more quiet?

I believe so, if there is any power difference it wouldn't be much.

PaulZ370 · 08-09-2012, 10:59 AM

Quote:

Originally Posted by AreJay

Is the non resonated a lot louder then the 12' resonated exhaust. There's a used non resonated for sale in the forums and I'm considering buying it. The hp gains between the non resonated and resonated are they same right?The resonated are just more quiet?

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

djkyky · 08-09-2012, 07:23 PM

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?

KaienZ34 · 08-09-2012, 07:31 PM

Quote:

Originally Posted by djkyky

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?

djkyky · 08-09-2012, 07:39 PM

Resonated.

w0rM · 08-10-2012, 03:54 PM

Quote:

Originally Posted by djkyky

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?

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.

KaienZ34 · 08-10-2012, 04:41 PM

Quote:

Originally Posted by w0rM

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.

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

w0rM · 08-10-2012, 09:21 PM

Quote:

Originally Posted by KaienZ34

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.

dmhenderson · 08-10-2012, 10:09 PM

Quote:

Originally Posted by w0rM

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.

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

08-09-2012, 07:23 PM	#4 (permalink)
djkyky Base Member Join Date: Jan 2012 Location: Lexington, KY Posts: 17 Drives: 12 Nissan 370Z Rep Power: 15	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?

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08-08-2012, 01:42 PM	#1 (permalink)
AreJay Base Member Join Date: Jan 2012 Location: Norco Posts: 179 Drives: 11 Nissan 370z M6 Rep Power: 15	Is the non resonated a lot louder then the 12' resonated exhaust. There's a used non resonated for sale in the forums and I'm considering buying it. The hp gains between the non resonated and resonated are they same right?The resonated are just more quiet?

08-09-2012, 07:39 PM	#6 (permalink)
djkyky Base Member Join Date: Jan 2012 Location: Lexington, KY Posts: 17 Drives: 12 Nissan 370Z Rep Power: 15	Resonated.