Z1 High Flow Cats Review/Complaint

Fhjkalfhu · 01-24-2018, 09:09 PM

Since I didn't find any reviews other than the 2 perfect ones on their site, and my review probably won't be posted on their site, I decided to put in my opinion of these here.

So a week after installing these I get a SES light... I ran test pipes for a year, so not sure whats going on there.

Also the support bracket does not bolt up to these.

I'm not very impressed with these and I feel like I've wasted $400 just to avoid my car smelling.

Boomzig · 01-24-2018, 09:41 PM

Heard great things about Fast Intentions HFCs.

Fhjkalfhu · 01-24-2018, 09:49 PM

Quote:

Originally Posted by Boomzig

Heard great things about Fast Intentions HFCs.

That might have been the better option... or just dealing with the raw smell of exhaust

nandosman · 01-25-2018, 02:33 AM

There's always a rare case scenario where you do get a CEL, even with Fast Intentions. They do say, however, that a tune should fix it.

Fhjkalfhu · 01-25-2018, 04:44 PM

Quote:

Originally Posted by nandosman

There's always a rare case scenario where you do get a CEL, even with Fast Intentions. They do say, however, that a tune should fix it.

Got the code ran. Came back with p0158, but I can’t find any way to narrow it down. What codes do people usually throw with high flow cats?

Beachbum718 · 03-18-2018, 12:28 AM

had mine on for a year, no codes what so ever

Fhjkalfhu · 03-18-2018, 12:33 AM

Quote:

Originally Posted by Beachbum718

had mine on for a year, no codes what so ever

Yea not sure what to say there. It’s just stupid I run test pipes for a year with no issues, then throw these on and get a code almost immediately. Probably some quality control issue. Most likely won’t use their products anymore

VQStryker · 03-18-2018, 01:05 AM

Z1 is a very reputable company, not too sure why but probably some quality control issue like you said. Did you check the O2 sensor to see if it needs replaced? If it doesn’t need replaced then a tune will fix the issue. Hope you figure it out.

VQStryker · 03-18-2018, 01:09 AM

Maybe try the electrical connector. I hope this attachment helps

Fhjkalfhu · 03-18-2018, 02:15 AM

I haven’t checked the sensors but might. I figured it would be pointless because doesn’t a tune just basically tell the ecu to disregard those sensors? I appreciate your input tho

HapaZ · 03-18-2018, 04:10 AM

I had a SES light issue after install and it ended up being an exhaust leak unrelated to the parts. It was an install issue. Might want to hook up and ECU reader to see if that's the issue.

Fhjkalfhu · 03-18-2018, 09:46 AM

That’s the only code I got. I don’t think that’s the one for a leak

SS_Firehawk · 03-18-2018, 10:57 PM

Do you have a pic of the bracket not matching up? Could be that you needed to keep the bolts loose until everything lined up then tightened it down. It could also explain your code. Just some suggestions.

Fhjkalfhu · 03-18-2018, 11:05 PM

No I don’t. I tried that while I was installing it but didn’t care since it’s just a support bracket and nothing else. I’m 99% sure that has anything to do with a code for Oxygen Sensor Circuit high Voltage (Bank 2 Sensor 2).

jchammond · 03-18-2018, 11:06 PM

One more thing to add when working in that area...”No Impact Wrenches”
Shock/vibrations can damage AFR/O2’s.

01-24-2018, 09:09 PM	#1 (permalink)
Fhjkalfhu Base Member Join Date: Feb 2017 Location: Somewhere Posts: 114 Drives: 2009 base white 7AT Rep Power: 8	Z1 High Flow Cats Review/Complaint Since I didn't find any reviews other than the 2 perfect ones on their site, and my review probably won't be posted on their site, I decided to put in my opinion of these here. So a week after installing these I get a SES light... I ran test pipes for a year, so not sure whats going on there. Also the support bracket does not bolt up to these. I'm not very impressed with these and I feel like I've wasted $400 just to avoid my car smelling.

01-24-2018, 09:41 PM	#2 (permalink)
Boomzig Base Member Join Date: Feb 2016 Location: Novi Posts: 79 Drives: 370Z Sport Tec 2016 Rep Power: 9	Heard great things about Fast Intentions HFCs. __________________ FI 18" SS CBE \| Tommy Keira Heavy Bebi Knob \| Fly1 Duckbill \| Carbon Signal V2 Lip \| R2C Drop Ins

01-25-2018, 02:33 AM	#4 (permalink)
nandosman Enthusiast Member Join Date: Mar 2017 Location: IL, US Posts: 344 Drives: 2014 370Z T/S Rep Power: 8	There's always a rare case scenario where you do get a CEL, even with Fast Intentions. They do say, however, that a tune should fix it. __________________ FI Non-Res Test Pipes \| FI 18" Res CBE \| Stillen Gen 3 CAI \| Dynotuned @ Dynosty EcuTek 325 whp

03-18-2018, 01:05 AM	#8 (permalink)
VQStryker Track Member Join Date: Jul 2011 Location: Texas Age: 36 Posts: 659 Drives: :( Rep Power: 15	Z1 is a very reputable company, not too sure why but probably some quality control issue like you said. Did you check the O2 sensor to see if it needs replaced? If it doesn’t need replaced then a tune will fix the issue. Hope you figure it out. __________________ SOLD- Stryker TT super sleeper (12.35 @ 121mph) no gripZ Chance build http://www.the370z.com/members-370z-...ml#post3001583 No Z

03-18-2018, 10:57 PM	#13 (permalink)
SS_Firehawk Premium Member Join Date: Oct 2011 Location: Tampa Posts: 4,142 Drives: 13' Magma Red Nismo Rep Power: 7335	Do you have a pic of the bracket not matching up? Could be that you needed to keep the bolts loose until everything lined up then tightened it down. It could also explain your code. Just some suggestions. __________________ Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI New Car: Under Construction

03-18-2018, 12:28 AM	#6 (permalink)
Beachbum718 Base Member Join Date: Jun 2015 Location: Ny Posts: 30 Drives: M37s Rep Power: 10	had mine on for a year, no codes what so ever

03-18-2018, 02:15 AM	#10 (permalink)
Fhjkalfhu Base Member Join Date: Feb 2017 Location: Somewhere Posts: 114 Drives: 2009 base white 7AT Rep Power: 8	I haven’t checked the sensors but might. I figured it would be pointless because doesn’t a tune just basically tell the ecu to disregard those sensors? I appreciate your input tho

03-18-2018, 04:10 AM	#11 (permalink)
HapaZ Base Member Join Date: Sep 2014 Location: NorCal Posts: 245 Drives: 2012 370z Base Coupe Rep Power: 11	I had a SES light issue after install and it ended up being an exhaust leak unrelated to the parts. It was an install issue. Might want to hook up and ECU reader to see if that's the issue.

03-18-2018, 09:46 AM	#12 (permalink)
Fhjkalfhu Base Member Join Date: Feb 2017 Location: Somewhere Posts: 114 Drives: 2009 base white 7AT Rep Power: 8	That’s the only code I got. I don’t think that’s the one for a leak

03-18-2018, 11:05 PM	#14 (permalink)
Fhjkalfhu Base Member Join Date: Feb 2017 Location: Somewhere Posts: 114 Drives: 2009 base white 7AT Rep Power: 8	No I don’t. I tried that while I was installing it but didn’t care since it’s just a support bracket and nothing else. I’m 99% sure that has anything to do with a code for Oxygen Sensor Circuit high Voltage (Bank 2 Sensor 2).

03-18-2018, 11:06 PM	#15 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 58 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684395	One more thing to add when working in that area...”No Impact Wrenches” Shock/vibrations can damage AFR/O2’s. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

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