Test Pipe or HFC?

OMGiGOTaZ · 08-22-2012, 09:01 PM

I'm on the Fence with going HFC or TP and after weeks of searching can't find any good posts

on One versus the other for A:Performance B:CEL lights

sonic370 · 08-22-2012, 09:10 PM

i'm with you trying to determine what to go with. but the more research i do the more confused i get. i just don't to put money into something and it sound like a ricer no harm meant to anyone just feel that way..... or maybe i should have said a honda with a tin can stuck on it

Sales@AAMComp · 08-22-2012, 09:19 PM

test pipes
pros: best flowing, no restrictions what so ever, yummy gas smell?
cons: WAY louder in comparison to hfc, both rasp, drone, exhaust note, a good alternative to this are the ART pipes, which have a separate resonance chamber. some are made with the j-tube style o2 bung to trick the o2 sensor for no CEL, some don't. Smell (some hate it, some actually love it)

high flow cats
pros: no smell, theoretically shouldn't trip the o2 sensor, should flow similar to the test pipe, but obviously not as much
cons: more expensive, cores can possibly break or come loose, especially if you track your car, the excessive high temp exhaust gas will have an effect on the core

lemon-fresh · 08-22-2012, 10:32 PM

I have hfc's and will be switching to test pipes. They are cheaper, safer and provide more gains. Should have just gone with them from the start.

I wouldn't say our engine sounds very honda ricey with test pipes, it's a much bigger engine than you might see on those hondas with pop can exhaust.

lemon-fresh · 08-22-2012, 10:37 PM

370z Fast Intentions CBE 18" Resonators, Resonated Test Pipes, Stillen Gen 3 CAI - YouTube

Fast Intentions exhaust is here! (continued)

Romulus1 · 08-22-2012, 10:52 PM

ART Pipes FTW!

Joepro · 08-22-2012, 11:01 PM

Resonated TPs or punched cats, when through it all on my 350z, non res,res,high flow,and last, punched cats, this is my number one option, looks like cats, and flows better, just add some defoulers to the sensors. I bought a set of used cats for 50 bucks and went to town, some scrap yards will even buy the platinum out of the cats.

mardigras · 08-25-2012, 04:14 PM

From what I have read unless you have FI I would suggest Resonated TPs .. Also on a NA car they seem to make a bit more power because your not losing backpressure.. FI engine's need no backpressure...

luckylaki · 08-26-2012, 03:06 AM

Good post man.. I'm in the same boat..

OMGiGOTaZ · 08-29-2012, 10:06 PM

Thank you everyone for your replies...

Was hoping someone here with TP on a Z would chime in if they have a CEL issue?

I'm still as unsure as before

To pay double for the HFC and still no guarantee of CEL

CSA0890 · 08-29-2012, 10:32 PM

Quote:

Originally Posted by mardigras

From what I have read unless you have FI I would suggest Resonated TPs .. Also on a NA car they seem to make a bit more power because your not losing backpressure.. FI engine's need no backpressure...

You need to read up on what backpressure does to an engine. FI or NA it doesnt matter. Backpressure reduces horsepower

seymore4 · 08-29-2012, 10:59 PM

Quote:

Originally Posted by OMGiGOTaZ

To pay double for the HFC and still no guarantee of CEL

There's no guarantee with either that it won't throw a CEL, most guys get an Uprev reflash and disable the code in the tune

NV370z · 08-29-2012, 11:27 PM

CEL was my biggest concern, disabling via uprev is a workaround not a solution. Went with ART pipes, v3, new factory gasket design. No leaks, quality product and most of all no CEL. Expensive...yes...but worth every penny to get get what you pay for. Getting a cheaper product in the beginning will only cost more in the end.

OMGiGOTaZ · 08-30-2012, 07:41 PM

Quote:

Originally Posted by seymore4

There's no guarantee with either that it won't throw a CEL, most guys get an Uprev reflash and disable the code in the tune

Interesting I haven't read any posts stating this yet, back to the research

seymore4 · 08-30-2012, 08:33 PM

Quote:

Originally Posted by NV370z

CEL was my biggest concern, disabling via uprev is a workaround not a solution. Went with ART pipes, v3, new factory gasket design. No leaks, quality product and most of all no CEL. Expensive...yes...but worth every penny to get get what you pay for. Getting a cheaper product in the beginning will only cost more in the end.

spacing the sensor away from the exhaust flow to trick it into thinking it isn't flowing as much and as a result not getting an accurate reading to the ecu sounds more like a work around to me..

Disabling the DTC in the uprev tune doesn't disable the sensor it just stops it from throwing the code when it detects abnormal parameters.. IE too much exhaust flow.

08-22-2012, 09:01 PM	#1 (permalink)
OMGiGOTaZ Enthusiast Member Join Date: Jul 2012 Location: Florida Posts: 316 Drives: 12 370Z Auto Sport Rep Power: 13	Test Pipe or HFC? I'm on the Fence with going HFC or TP and after weeks of searching can't find any good posts on One versus the other for A:Performance B:CEL lights __________________ all you gotta do is...

08-22-2012, 09:10 PM	#2 (permalink)
sonic370 A True Z Fanatic Join Date: May 2010 Location: Orange Texas Posts: 1,574 Drives: 09 370Z Sports PGK Rep Power: 18	i'm with you trying to determine what to go with. but the more research i do the more confused i get. i just don't to put money into something and it sound like a ricer no harm meant to anyone just feel that way..... or maybe i should have said a honda with a tin can stuck on it faya likes this.

08-22-2012, 09:19 PM	#3 (permalink)
Sales@AAMComp A True Z Fanatic Join Date: Jul 2012 Location: Annapolis Junction, MD Posts: 4,079 Drives: GT-R Rep Power: 21	test pipes pros: best flowing, no restrictions what so ever, yummy gas smell? cons: WAY louder in comparison to hfc, both rasp, drone, exhaust note, a good alternative to this are the ART pipes, which have a separate resonance chamber. some are made with the j-tube style o2 bung to trick the o2 sensor for no CEL, some don't. Smell (some hate it, some actually love it) high flow cats pros: no smell, theoretically shouldn't trip the o2 sensor, should flow similar to the test pipe, but obviously not as much cons: more expensive, cores can possibly break or come loose, especially if you track your car, the excessive high temp exhaust gas will have an effect on the core __________________ Tyler Day, Technical Sales TylerD@aamcompetition.com 301-497-9214 Direct AAM Competition \| YouTube channel \| LIKE us on Facebook!

08-22-2012, 10:52 PM	#6 (permalink)
Romulus1 Track Member Join Date: May 2011 Location: Long Island, NY Posts: 691 Drives: '11 370Z Sport 6MT Rep Power: 15	ART Pipes FTW! __________________ 11 SR 370Z Sport 6MT - Sold 03 Escalade AWD - Sold 13 Silverado LTZ Z71 Crew Cab

08-22-2012, 11:01 PM	#7 (permalink)
Joepro A True Z Fanatic Join Date: Aug 2012 Location: Athens ohio Posts: 1,213 Drives: Company car Rep Power: 34	Resonated TPs or punched cats, when through it all on my 350z, non res,res,high flow,and last, punched cats, this is my number one option, looks like cats, and flows better, just add some defoulers to the sensors. I bought a set of used cats for 50 bucks and went to town, some scrap yards will even buy the platinum out of the cats. Benihana likes this. __________________ Swift\|Koni\|SPC\| FI CBE\|Z1\|Stillen\|Sbend\|Zspeed\|R/T Tuned\|523 whp\|458 tq\|10.5 psi\|SOLD Joepro's Journal\|Joepro's Boosted Performance Build \|Pittsburgh-Western-Pa-Ohio-Wv-Group

08-22-2012, 10:32 PM	#4 (permalink)
lemon-fresh Enthusiast Member Join Date: Mar 2012 Location: Calgary Age: 40 Posts: 471 Drives: 09 370z Rep Power: 13	I have hfc's and will be switching to test pipes. They are cheaper, safer and provide more gains. Should have just gone with them from the start. I wouldn't say our engine sounds very honda ricey with test pipes, it's a much bigger engine than you might see on those hondas with pop can exhaust.

08-22-2012, 10:37 PM	#5 (permalink)
lemon-fresh Enthusiast Member Join Date: Mar 2012 Location: Calgary Age: 40 Posts: 471 Drives: 09 370z Rep Power: 13	370z Fast Intentions CBE 18" Resonators, Resonated Test Pipes, Stillen Gen 3 CAI - YouTube Fast Intentions exhaust is here! (continued)

08-25-2012, 04:14 PM	#8 (permalink)
mardigras Banned Join Date: Jul 2012 Location: MIAMI Posts: 136 Drives: 2010 Rep Power: 0	From what I have read unless you have FI I would suggest Resonated TPs .. Also on a NA car they seem to make a bit more power because your not losing backpressure.. FI engine's need no backpressure...

08-26-2012, 03:06 AM	#9 (permalink)
luckylaki Base Member Join Date: Jan 2012 Location: Fort Lee NJ Posts: 90 Drives: 2012PW sport/touring Rep Power: 13	Good post man.. I'm in the same boat.. __________________ Waiting for a raise then mods!

08-29-2012, 10:06 PM	#10 (permalink)
OMGiGOTaZ Enthusiast Member Join Date: Jul 2012 Location: Florida Posts: 316 Drives: 12 370Z Auto Sport Rep Power: 13	Thank you everyone for your replies... Was hoping someone here with TP on a Z would chime in if they have a CEL issue? I'm still as unsure as before To pay double for the HFC and still no guarantee of CEL __________________ all you gotta do is...

08-29-2012, 11:27 PM	#13 (permalink)
NV370z Base Member Join Date: Jan 2011 Location: LV Posts: 57 Drives: '10 370z MT Spt Pkg Rep Power: 14	CEL was my biggest concern, disabling via uprev is a workaround not a solution. Went with ART pipes, v3, new factory gasket design. No leaks, quality product and most of all no CEL. Expensive...yes...but worth every penny to get get what you pay for. Getting a cheaper product in the beginning will only cost more in the end.

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