ERZ Performance High Flow Cats

spearfish25 · 01-07-2010, 07:57 AM

Just placed my order. Should have them installed within a week or so of receiving them. I'll have some videos as well as sound level measurements. Sorry, no plans to dyno though.

KEVTEX · 01-07-2010, 09:02 AM

JB1, both the ERZ and Berk hfc's use 200 cell metallic substrate converter cores and both use 2.5" or 60mm stainless tubing so the sound differences should be minor. Remember that every 3 db is a doubling of the sound level. Our ears are nonlinear in the way we perceive sound levels. Also, before and after sound comparisons that rely on our memory of what our exhaust sounded like previous to a new install are not very accurate. I thought the sound at idle was the same as stock with a small but noticeable increase at higher rpm. You can see by the numbers I posted that the increase at idle was larger than the increase at WOT.

JB1 · 01-07-2010, 12:34 PM

Thanks for the additional explanation KEVTEX. I agree that it is very difficult to judge the difference in sound based on memory. But I do remember thinking WOW, that's loud, when the mechanic started my car after the install

bluestyle55 · 01-08-2010, 07:28 AM

Quote:

Originally Posted by spearfish25

Just placed my order. Should have them installed within a week or so of receiving them. I'll have some videos as well as sound level measurements. Sorry, no plans to dyno though.

Great! I can't wait to see the sound results using the stillin CBE as a base line.

370Zsteve · 01-08-2010, 07:35 AM

Quote:

Originally Posted by SilverBullet

Kinetix HFCs have a lifetime warranty against defect and a 1 year warranty on movable parts.

Movable parts?

spearfish25 · 01-17-2010, 12:29 PM

Cats purchased, installed and reviewed. Please check my other thread.

pearlZ92 · 05-10-2011, 11:43 AM

did you have any issues with yours? ive had mine for # weeks and suddenly the service engine soon light came on. took it to nissan they told me the cats were not performing(they burned out) is it bad to keep driving with these? they removed the warning light and everything works fine. what should i do????

djpathfinder · 05-10-2011, 12:36 PM

The next time it occurs, go to Pep Boys, who will read the CEL code and reset it for you for free. Find out what the code is. It's likely an error code due to the O2 sensors attaching the HFCs. If this keeps recurring, you can either get extenders for the O2 sensors (from wherever you bought your HFCs) or stuff some steel wool in front of the sensors (or both). Because there's less filter material in HFCs for exhaust gases to go through the sensors detect a relatively lower concentration of O2 and triggers the error code. Simple fix...the HFCs are not "burned out".

spearfish25 · 05-10-2011, 12:43 PM

Mine have been perfect, but they sent me the right-angle extended bungs when I bought them (I was the first on this site, I think). You're just throwing a code from the O2 sensor as DJ noted. Nissan techs don't know what they're talking about. And a burnt out cat is just a test pipe as long as the cat core isn't blocking the exhaust outlet.

chops · 05-10-2011, 04:59 PM

Quote:

Originally Posted by pearlZ92

did you have any issues with yours? ive had mine for # weeks and suddenly the service engine soon light came on. took it to nissan they told me the cats were not performing(they burned out) is it bad to keep driving with these? they removed the warning light and everything works fine. what should i do????

yes...all i did was roll up a bunch of steel wool until it was a tightly packed 1" diameter steel wool ball. stuffed it into the O2 bungs and i havent had the any lights come up since. i installed extended O2 bungs and that didnt do anything for me, however the rolled up steel wool has worked fine for the last 3-4 months

01-07-2010, 07:57 AM	#16 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	Just placed my order. Should have them installed within a week or so of receiving them. I'll have some videos as well as sound level measurements. Sorry, no plans to dyno though. __________________ 2013 Cadillac V-Wagon, RIP Z

01-07-2010, 12:34 PM	#18 (permalink)
JB1 Track Member Join Date: Mar 2009 Location: Chicagoland Posts: 748 Drives: 09 Nissan 370Z sold Rep Power: 17	Thanks for the additional explanation KEVTEX. I agree that it is very difficult to judge the difference in sound based on memory. But I do remember thinking WOW, that's loud, when the mechanic started my car after the install __________________ Black Fangs // Black rear Valance // Berk CBE // COBB post MAF tubes // K&N drop in filters // Setrab Oil Cooler // Stillen Sway bars // Z1 SS brake lines // Stillen brake cooling kit // Harness bar //

01-17-2010, 12:29 PM	#21 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	Cats purchased, installed and reviewed. Please check my other thread. __________________ 2013 Cadillac V-Wagon, RIP Z

05-10-2011, 12:36 PM	#23 (permalink)
djpathfinder A True Z Fanatic Join Date: Mar 2010 Location: Edmonton, Canada Posts: 12,910 Drives: 2012 GT-R BE Rep Power: 733	The next time it occurs, go to Pep Boys, who will read the CEL code and reset it for you for free. Find out what the code is. It's likely an error code due to the O2 sensors attaching the HFCs. If this keeps recurring, you can either get extenders for the O2 sensors (from wherever you bought your HFCs) or stuff some steel wool in front of the sensors (or both). Because there's less filter material in HFCs for exhaust gases to go through the sensors detect a relatively lower concentration of O2 and triggers the error code. Simple fix...the HFCs are not "burned out". __________________ 2012 GT-R Black Edition Jet Black 2010 370Z 40th Anniversary // SOLD

05-10-2011, 12:43 PM	#24 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	Mine have been perfect, but they sent me the right-angle extended bungs when I bought them (I was the first on this site, I think). You're just throwing a code from the O2 sensor as DJ noted. Nissan techs don't know what they're talking about. And a burnt out cat is just a test pipe as long as the cat core isn't blocking the exhaust outlet. __________________ 2013 Cadillac V-Wagon, RIP Z

01-07-2010, 09:02 AM	#17 (permalink)
KEVTEX Base Member Join Date: Nov 2009 Location: Montgomery, TX Posts: 119 Drives: 2010 370Z 7at sp pg Rep Power: 15	JB1, both the ERZ and Berk hfc's use 200 cell metallic substrate converter cores and both use 2.5" or 60mm stainless tubing so the sound differences should be minor. Remember that every 3 db is a doubling of the sound level. Our ears are nonlinear in the way we perceive sound levels. Also, before and after sound comparisons that rely on our memory of what our exhaust sounded like previous to a new install are not very accurate. I thought the sound at idle was the same as stock with a small but noticeable increase at higher rpm. You can see by the numbers I posted that the increase at idle was larger than the increase at WOT.

05-10-2011, 11:43 AM	#22 (permalink)
pearlZ92 Base Member Join Date: Mar 2011 Location: Westchester,NY Posts: 21 Drives: 10 nissan 370z PW AT Rep Power: 14	did you have any issues with yours? ive had mine for # weeks and suddenly the service engine soon light came on. took it to nissan they told me the cats were not performing(they burned out) is it bad to keep driving with these? they removed the warning light and everything works fine. what should i do????