HFC or test pipe?

allenhhp · 05-23-2010, 04:14 AM

Hello,
Can anyone tell me what is the difference between HFC and the test pipe?
I am really confused.
Thank you.

kevr6 · 05-23-2010, 07:20 AM

One is just a pipe and one is an actual cat.

Kastley85891 · 05-23-2010, 09:13 AM

5HP and some rattle ;-)

Zsteve · 05-23-2010, 09:25 AM

Go HFC, the other will have tooooo much rasp, the HFC will have some but not much.

Kastley85891 · 05-23-2010, 11:08 AM

Depends on budget also.
I have had HFC's and agree very nice, also ran non resonated and resontated test pipes and they all vary in sound depending on other exhaust mods.

Personally I liked the NR test pipes and stock exhuast, went good to , but each there own ;-)

allenhhp · 05-23-2010, 03:00 PM

thank you guys for the response
do I have to worry about CEL with either one？

Kastley85891 · 05-23-2010, 04:15 PM

HFC not likely, TP - possible depending on vehicle or choice. I myself have nevr had a CEL and have run HFC, TP of two variants

shaun66 · 05-23-2010, 08:57 PM

while the topic is up. whats the difference between resonated and non-resonated test pipes?

Thanks in advance guys

Trips · 05-23-2010, 09:02 PM

Quote:

Originally Posted by shaun66

while the topic is up. whats the difference between resonated and non-resonated test pipes?

Thanks in advance guys

One is just a plain pipe while the other is a resonated pipe.

The BlueMax · 05-23-2010, 09:29 PM

Quote:

Originally Posted by Kastley85891

Depends on budget also.
I have had HFC's and agree very nice, also ran non resonated and resontated test pipes and they all vary in sound depending on other exhaust mods.

Personally I liked the NR test pipes and stock exhuast, went good to , but each there own ;-)

I hear you Kastley, I passed a yellow saleen and then he blew by me on the interstate, sounded good.

Kastley85891 · 05-24-2010, 08:35 AM

^ yeah sneaky muscle

shaun66 · 05-24-2010, 09:25 PM

Quote:

One is just a plain pipe while the other is a resonated pipe.

Haha simple enough thanks for the explanation.

05-23-2010, 04:14 AM	#1 (permalink)
allenhhp Base Member Join Date: Apr 2010 Location: North Cal Posts: 70 Drives: 09 370Z Yellow MT Rep Power: 15	HFC or test pipe? Hello, Can anyone tell me what is the difference between HFC and the test pipe? I am really confused. Thank you.

05-23-2010, 07:20 AM	#2 (permalink)
kevr6 A True Z Fanatic Join Date: Feb 2009 Location: N.W. Atlanta Posts: 1,515 Drives: '09 Graphite 370Z 6M Rep Power: 666	One is just a pipe and one is an actual cat. __________________ *Beware...* Daily Sliding In My ZLED!

05-23-2010, 09:13 AM	#3 (permalink)
Kastley85891 A True Z Fanatic Join Date: Nov 2009 Location: ATX 370 - Sold Posts: 1,149 Drives: 2003 Wagon Rep Power: 17	5HP and some rattle ;-) __________________ Boosted V8 hunter 2850 lbs and 375WHP

05-23-2010, 09:25 AM	#4 (permalink)
Zsteve A True Z Fanatic Join Date: Sep 2009 Location: TX Posts: 3,298 Drives: the 2 balled club Rep Power: 21	Go HFC, the other will have tooooo much rasp, the HFC will have some but not much. __________________ 2010 LS3 C6 Silver coupe corvette

05-23-2010, 11:08 AM	#5 (permalink)
Kastley85891 A True Z Fanatic Join Date: Nov 2009 Location: ATX 370 - Sold Posts: 1,149 Drives: 2003 Wagon Rep Power: 17	Depends on budget also. I have had HFC's and agree very nice, also ran non resonated and resontated test pipes and they all vary in sound depending on other exhaust mods. Personally I liked the NR test pipes and stock exhuast, went good to , but each there own ;-) __________________ Boosted V8 hunter 2850 lbs and 375WHP

05-23-2010, 03:00 PM	#6 (permalink)
allenhhp Base Member Join Date: Apr 2010 Location: North Cal Posts: 70 Drives: 09 370Z Yellow MT Rep Power: 15	thank you guys for the response do I have to worry about CEL with either one？

05-23-2010, 04:15 PM	#7 (permalink)
Kastley85891 A True Z Fanatic Join Date: Nov 2009 Location: ATX 370 - Sold Posts: 1,149 Drives: 2003 Wagon Rep Power: 17	HFC not likely, TP - possible depending on vehicle or choice. I myself have nevr had a CEL and have run HFC, TP of two variants __________________ Boosted V8 hunter 2850 lbs and 375WHP

05-23-2010, 08:57 PM	#8 (permalink)
shaun66 Track Member Join Date: Mar 2010 Location: n Posts: 837 Drives: MB 370z 7AT Rep Power: 16	while the topic is up. whats the difference between resonated and non-resonated test pipes? Thanks in advance guys

05-24-2010, 08:35 AM	#11 (permalink)
Kastley85891 A True Z Fanatic Join Date: Nov 2009 Location: ATX 370 - Sold Posts: 1,149 Drives: 2003 Wagon Rep Power: 17	^ yeah sneaky muscle __________________ Boosted V8 hunter 2850 lbs and 375WHP

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