Test Pipes vs HFCs on Stock CBE

ZziK · 06-02-2013, 05:34 PM

Hey guys - i am having trouble deciding between TPs or HFCs for the stock CBE system. I currently live in Florida so smog testing will not be an issue.

What do you guys think? Would either cause damage to the engine?

SS_Firehawk · 06-02-2013, 06:03 PM

I recommend spending a good amount of time searching in here. Short answer, test pipes rasp. If you don't care, go for it. HFC's are better sounding, slightly quieter. My recommendation is if you do TP's, do resonated. Hopefully you upgrade the rest of your exhaust too... Z's have such a terrible exhaust sound

Gibby1113 · 06-02-2013, 06:04 PM

Resonated hfc

ZziK · 06-02-2013, 06:16 PM

from the searching that i've done, it seems like the way to go is with HFCs on the stock system. I've been looking at the Berk and ARK - i am also looking for sound clips of the stock CBE with a resonated test pipe.

Mandingo · 06-02-2013, 08:05 PM

I had Berk HFC with stock exhaust for a while. It actually sounded really mean. Recommended

I have an old video of light acceleration somewhere if you want to hear

ZziK · 06-03-2013, 06:27 AM

Found the clip and it sounds pretty good. I am now looking for a good price on the Berk HFC; any dealers out there that want to get rid of one, PM me!

1cleanZ · 06-03-2013, 11:59 AM

Quote:

Originally Posted by Gibby1113

Resonated hfc

^^^ what he said!! Resonated HFCs is the best of both worlds. On the G37 side this is an extremely popular product because its proven over and over and over again to keep away any rasp/drone but give you the added gains you want.

Sales@F.I. Inc. · 06-03-2013, 12:05 PM

Quote:

Originally Posted by Gibby1113

Resonated hfc

Quote:

Originally Posted by | 1cleang |

^^^ what he said!!

X3

ZziK · 06-03-2013, 05:51 PM

I dont mind the raspiness that you get on the stock CBE with a non resonated HFC.. F.I, cut me a deal on one of those

Are there any clips out there of a Stock CBE with a resonated HFC?

Sales@F.I. Inc. · 06-03-2013, 06:43 PM

Quote:

Originally Posted by ZziK

I dont mind the raspiness that you get on the stock CBE with a non resonated HFC.. F.I, cut me a deal on one of those

Are there any clips out there of a Stock CBE with a resonated HFC?

Give me a call at the shop if you would like to get a set on order

ZziK · 06-04-2013, 04:37 AM

Would there be an increased exhaust note even with a resonated HFC and the stock CBE?

mantella87 · 06-04-2013, 05:05 AM

If emissions are of no concern, why even consider cats? I would get test pipes or long tube headers.

ZziK · 06-04-2013, 06:21 AM

I was definitely considering that, going with resonated test pipes but from what i've been reading, the smelling of gas fumes in the cabin is not something that i want to deal with.. anyone have any input on that?

jcosta79 · 06-04-2013, 12:54 PM

Quote:

Originally Posted by mantella87

If emissions are of no concern, why even consider cats? I would get test pipes or long tube headers.

This.

jcosta79 · 06-04-2013, 01:00 PM

Quote:

Originally Posted by ZziK

I was definitely considering that, going with resonated test pipes but from what i've been reading, the smelling of gas fumes in the cabin is not something that i want to deal with.. anyone have any input on that?

It's not a big deal at all. I only smell it on start-up if I let the car warm up in the garage for a few minutes or after I shut the car off in the garage. On the road I don't smell it ever. It's not an unpleasant smell either. My wife likes it!

Of course, this is coming from a guy who had a Vette with straight through exhaust (LTH's, no cats, and the mufflers had bypass valves) and a big lumpy cam. Now THAT car smelled, big time. Wife liked that one too though, so it was not a big deal. What she didn't care for were the loud noises it made and the whole car shaking at idle.

06-02-2013, 05:34 PM	#1 (permalink)
ZziK Base Member Join Date: Aug 2012 Location: Orlando, FL Posts: 123 Drives: 09 Nissan 370z Rep Power: 14	Test Pipes vs HFCs on Stock CBE Hey guys - i am having trouble deciding between TPs or HFCs for the stock CBE system. I currently live in Florida so smog testing will not be an issue. What do you guys think? Would either cause damage to the engine?

06-02-2013, 06:03 PM	#2 (permalink)
SS_Firehawk Premium Member Join Date: Oct 2011 Location: Tampa Posts: 4,142 Drives: 13' Magma Red Nismo Rep Power: 7335	I recommend spending a good amount of time searching in here. Short answer, test pipes rasp. If you don't care, go for it. HFC's are better sounding, slightly quieter. My recommendation is if you do TP's, do resonated. Hopefully you upgrade the rest of your exhaust too... Z's have such a terrible exhaust sound Wonka2581 and Gibby1113 like this. __________________ Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI New Car: Under Construction

06-02-2013, 06:04 PM	#3 (permalink)
Gibby1113 Enthusiast Member Join Date: Nov 2012 Location: On open empty highways Posts: 366 Drives: 40th anniversary Rep Power: 13	Resonated hfc __________________ 40th anniversary #450/1000 \| Takeda Attack CAI \| Ark DTS exhaust \| to be continued...

06-02-2013, 06:16 PM	#4 (permalink)
ZziK Base Member Join Date: Aug 2012 Location: Orlando, FL Posts: 123 Drives: 09 Nissan 370z Rep Power: 14	from the searching that i've done, it seems like the way to go is with HFCs on the stock system. I've been looking at the Berk and ARK - i am also looking for sound clips of the stock CBE with a resonated test pipe. Last edited by ZziK; 06-02-2013 at 06:23 PM.

06-02-2013, 08:05 PM	#5 (permalink)
Mandingo Track Member Join Date: Nov 2010 Location: Dallas Posts: 625 Drives: '10 370z 6spd Rep Power: 3371	I had Berk HFC with stock exhaust for a while. It actually sounded really mean. Recommended I have an old video of light acceleration somewhere if you want to hear __________________ some mods

06-03-2013, 06:27 AM	#6 (permalink)
ZziK Base Member Join Date: Aug 2012 Location: Orlando, FL Posts: 123 Drives: 09 Nissan 370z Rep Power: 14	Found the clip and it sounds pretty good. I am now looking for a good price on the Berk HFC; any dealers out there that want to get rid of one, PM me!

06-03-2013, 05:51 PM	#9 (permalink)
ZziK Base Member Join Date: Aug 2012 Location: Orlando, FL Posts: 123 Drives: 09 Nissan 370z Rep Power: 14	I dont mind the raspiness that you get on the stock CBE with a non resonated HFC.. F.I, cut me a deal on one of those Are there any clips out there of a Stock CBE with a resonated HFC? Last edited by ZziK; 06-03-2013 at 06:19 PM.

06-04-2013, 04:37 AM	#11 (permalink)
ZziK Base Member Join Date: Aug 2012 Location: Orlando, FL Posts: 123 Drives: 09 Nissan 370z Rep Power: 14	Would there be an increased exhaust note even with a resonated HFC and the stock CBE?

06-04-2013, 05:05 AM	#12 (permalink)
mantella87 Track Member Join Date: Jun 2011 Location: Sacramento, CA Posts: 590 Drives: 2011 Z34 MT Rep Power: 16	If emissions are of no concern, why even consider cats? I would get test pipes or long tube headers. __________________ Injen CAI \| CNT Resonated Test Pipes \| ARK Grip V2 CBE \| Swift Springs \| H&R 20mm Spacers \| Ings+1 Lip

06-04-2013, 06:21 AM	#13 (permalink)
ZziK Base Member Join Date: Aug 2012 Location: Orlando, FL Posts: 123 Drives: 09 Nissan 370z Rep Power: 14	I was definitely considering that, going with resonated test pipes but from what i've been reading, the smelling of gas fumes in the cabin is not something that i want to deal with.. anyone have any input on that?

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