HFC'S or Test pipes???

Dzel · 06-15-2011, 11:35 AM

I've done my research and ready to but a set. But I don't know which way to go. I don't want a code. And don't know if I should risk running test pipes. Your input would gladly be appreciated.

Econ · 06-15-2011, 12:25 PM

HFC's are more conservative whereas TP's are more unsensored

comes down to personal preference, would you rather be legal,queiter,less likely to throw a CEL, or be loud,smelly (subjective), and have (slightly) more power

370Z JT · 06-15-2011, 10:51 PM

Get the ART pipes. Best of both worlds.

Dzel · 06-15-2011, 11:36 PM

I'll look into them. I'm leaning towards a set of CNT resonated test pipes

tranceformer · 06-15-2011, 11:58 PM

I've tried both.

You'll get about the same HP/TQ gain from each, the rest is just a preference.

Test pipes
cost less $
stains on your rear bumper cover
more rasp (although some like this)
louder

HFC's
cost more $
the cores can be destroyed after some time
quieter, less rasp

The BlueMax · 06-16-2011, 12:57 AM

I have been hearing more and more about any type of converter breaking up and because of position being sucked back into the motor and causing some of the oil usage problems with the VQ engines from time to time, any thoughts?

Dzel · 06-16-2011, 04:56 AM

Quote:

Originally Posted by The BlueMax

I have been hearing more and more about any type of converter breaking up and because of position being sucked back into the motor and causing some of the oil usage problems with the VQ engines from time to time, any thoughts?

Whaaaa? I've never heard of that.

tranceformer · 06-16-2011, 07:23 AM

Quote:

Originally Posted by The BlueMax

I have been hearing more and more about any type of converter breaking up and because of position being sucked back into the motor and causing some of the oil usage problems with the VQ engines from time to time, any thoughts?

I've heard of that happening to late model Sentras because Nissan decided to put a mini-cat on the exhaust manifold, literally inches from the combustion chamber.

I doubt that would be a problem on our cars, cats aren't that close.

Econ · 06-16-2011, 08:57 AM

Quote:

Originally Posted by The BlueMax

I have been hearing more and more about any type of converter breaking up and because of position being sucked back into the motor and causing some of the oil usage problems with the VQ engines from time to time, any thoughts?

never heard of this.

red6spd · 06-16-2011, 09:05 AM

Go test pipes. And if you want quiet test pipes and dont mind spending more money go with the MotorDyne ART Test Pipes. HFC's are expensive and make less HP, yea its only a little but is less. There is still a restriction unlike the straight path of the TP's. As for your concern with the CEL. Fast Intentions Test Pipes are designed with an extended 02 sensor bung that is suppose to keep the CEL off but I have heard of cases of people still getting a CEL. Choice two, are you planning on getting the car UpReved Tuned?? If so the tuner who performs the tune can shut down the rear 02 sensors and trick the computer into thinking everything is a okay. Hope this helped.

P.S My rear bumper does not get stained but there is a smell of unburnt gas. But it like it. LOL

Econ · 06-16-2011, 09:09 AM

Burning all your gas is mean anyway, i prefer to leave some unburnt

Dzel · 06-16-2011, 10:46 AM

I love that smell

Econ · 06-16-2011, 10:49 AM

me too, thats half the reason i bought em....they arrive on saturday...cant wait!

Dzel · 06-16-2011, 12:07 PM

Ordering mine today as soon as they open up.

sTeadFasT96 · 06-16-2011, 12:15 PM

Personally, I don't think HFC's are worth it. Test pipes or just don't bother.

06-15-2011, 11:35 AM	#1 (permalink)
Dzel A True Z Fanatic Join Date: May 2011 Location: Midland, TX Posts: 3,884 Drives: 11 370Z PW M6 Rep Power: 23	HFC'S or Test pipes??? I've done my research and ready to but a set. But I don't know which way to go. I don't want a code. And don't know if I should risk running test pipes. Your input would gladly be appreciated. __________________ 10secWS6 IF YOU CAN'T SWING IT THEN DON'T BRING IT! Check out Domestic Performance C.C.

06-15-2011, 12:25 PM	#2 (permalink)
Econ A True Z Fanatic Join Date: Jan 2011 Location: New York City Posts: 2,546 Drives: Fiat? Rep Power: 19	HFC's are more conservative whereas TP's are more unsensored comes down to personal preference, would you rather be legal,queiter,less likely to throw a CEL, or be loud,smelly (subjective), and have (slightly) more power __________________ 2014 Triumph Thruxton 900 2013 Fiat 500 Abarth 2009 Nissan 370z

06-15-2011, 10:51 PM	#3 (permalink)
370Z JT A True Z Fanatic Join Date: Jan 2010 Location: United States Posts: 2,905 Drives: 370Z PW 7AT Rep Power: 378	Get the ART pipes. Best of both worlds. __________________ Click for My Journal Top Secret \| EVO-R \| Fujimura Auto \| Shine Auto \| Seibon \| MRWorks \| Swift \| SPC \| SSR \| UpRev \| Project Kics \| NST \| Titek \| Eibach \| Nismo \| Whiteline \| Quaife \| Invidia \| Fly1 \| CF Element \| Carbon Signal

06-15-2011, 11:36 PM	#4 (permalink)
Dzel A True Z Fanatic Join Date: May 2011 Location: Midland, TX Posts: 3,884 Drives: 11 370Z PW M6 Rep Power: 23	I'll look into them. I'm leaning towards a set of CNT resonated test pipes __________________ 10secWS6 IF YOU CAN'T SWING IT THEN DON'T BRING IT! Check out Domestic Performance C.C.

06-15-2011, 11:58 PM	#5 (permalink)
tranceformer A True Z Fanatic Join Date: Nov 2008 Location: Palm Beach, FL Posts: 1,213 Drives: 2009 370Z PW 6MT Rep Power: 268	I've tried both. You'll get about the same HP/TQ gain from each, the rest is just a preference. Test pipes cost less $ stains on your rear bumper cover more rasp (although some like this) louder HFC's cost more $ the cores can be destroyed after some time quieter, less rasp __________________ Ray 2009 370Z Base Sport 6MT / 12.860 @ 109.09mph / 1.921 60ft / street tires official 1/4 mile track times

06-16-2011, 12:57 AM	#6 (permalink)
The BlueMax Enthusiast Member Join Date: Jan 2010 Location: Louisville Posts: 337 Drives: 09 370/97 T/A 01 ZRX Rep Power: 25	converter revision I have been hearing more and more about any type of converter breaking up and because of position being sucked back into the motor and causing some of the oil usage problems with the VQ engines from time to time, any thoughts? __________________ The Blue Max

06-16-2011, 09:05 AM	#10 (permalink)
red6spd A True Z Fanatic Join Date: Apr 2010 Location: Long Island NY Posts: 3,277 Drives: 2010 Z Coupe M6 SPT Rep Power: 21	Go test pipes. And if you want quiet test pipes and dont mind spending more money go with the MotorDyne ART Test Pipes. HFC's are expensive and make less HP, yea its only a little but is less. There is still a restriction unlike the straight path of the TP's. As for your concern with the CEL. Fast Intentions Test Pipes are designed with an extended 02 sensor bung that is suppose to keep the CEL off but I have heard of cases of people still getting a CEL. Choice two, are you planning on getting the car UpReved Tuned?? If so the tuner who performs the tune can shut down the rear 02 sensors and trick the computer into thinking everything is a okay. Hope this helped. P.S My rear bumper does not get stained but there is a smell of unburnt gas. But it like it. LOL __________________ 2010 Base+Sport 6spd: Stillen G3, FI Non-Resonated CBE, FI Non-Resonated Test Pipes, UpRev Tuned, Custom 24R Oil Cooler, JDM Rear Fog-OEM Harness. ???Whp ???WTQ (Will find out come spring time)

06-16-2011, 09:09 AM	#11 (permalink)
Econ A True Z Fanatic Join Date: Jan 2011 Location: New York City Posts: 2,546 Drives: Fiat? Rep Power: 19	Burning all your gas is mean anyway, i prefer to leave some unburnt __________________ 2014 Triumph Thruxton 900 2013 Fiat 500 Abarth 2009 Nissan 370z

06-16-2011, 10:46 AM	#12 (permalink)
Dzel A True Z Fanatic Join Date: May 2011 Location: Midland, TX Posts: 3,884 Drives: 11 370Z PW M6 Rep Power: 23	I love that smell __________________ 10secWS6 IF YOU CAN'T SWING IT THEN DON'T BRING IT! Check out Domestic Performance C.C.

06-16-2011, 10:49 AM	#13 (permalink)
Econ A True Z Fanatic Join Date: Jan 2011 Location: New York City Posts: 2,546 Drives: Fiat? Rep Power: 19	me too, thats half the reason i bought em....they arrive on saturday...cant wait! __________________ 2014 Triumph Thruxton 900 2013 Fiat 500 Abarth 2009 Nissan 370z

06-16-2011, 12:07 PM	#14 (permalink)
Dzel A True Z Fanatic Join Date: May 2011 Location: Midland, TX Posts: 3,884 Drives: 11 370Z PW M6 Rep Power: 23	Ordering mine today as soon as they open up. __________________ 10secWS6 IF YOU CAN'T SWING IT THEN DON'T BRING IT! Check out Domestic Performance C.C.

06-16-2011, 12:15 PM	#15 (permalink)
sTeadFasT96 Base Member Join Date: Jan 2010 Location: GA Posts: 78 Drives: 05 G35 DG 5AT Rep Power: 15	Personally, I don't think HFC's are worth it. Test pipes or just don't bother.

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