ERZ Performance High Flow Cats, Install and Review Thread

wishihadnav · 06-21-2010, 05:26 PM

^^im not surprised..they do sit low..that's why i prefer a stacked option..

tjlazer · 07-27-2010, 06:49 PM

I just got my ERZ HFC's yesterday! Hope to install them tomorrow! Wish me luck with the demon bolt!

Zsteve · 07-27-2010, 09:02 PM

Quote:

Originally Posted by spearfish25

Just heard from a guy with a FI exhaust who crushed one of his CF mufflers after going over a dip. FI isn't as perfect as some make them out to be!

I have never scraped my FI CBE and I go over speed bumps and all. If a dip crushed his exhaust he was speeding and that caused it. Normal driving over bumps and dips wont scrap, atleast from my experience and I dont do the low rider 1/2 a mile an hour when going over bumps or dips. To scrap the FI CBE the driver has to being doing something wrong. Ive scarped my front end before but not the exhaust.

new370 · 07-27-2010, 09:46 PM

i have never scraped my FI CBE and i hit a 6inch deep pothole today doing about 20mph and my exhaust was fine

tjlazer · 07-29-2010, 11:11 AM

Installed my ERZ HFC's yesterday! The demon bolt was HELL. Had to rip off the stock cat to be able to break the bolt to remove. In the end I won. Took me like 4 hours! ERZ HFCs are nice and no CEL yet. Extended bung was worthless as the O2 sensor would not install.

ERZperformance · 08-02-2010, 04:10 AM

Quote:

Originally Posted by tjlazer

Installed my ERZ HFC's yesterday! The demon bolt was HELL. Had to rip off the stock cat to be able to break the bolt to remove. In the end I won. Took me like 4 hours! ERZ HFCs are nice and no CEL yet. Extended bung was worthless as the O2 sensor would not install.

I might have ship you the wrong size extended bung, if you do get Cel let me know I'll ship you the correct one.

thanks

ERZperformance · 09-07-2010, 08:12 PM

ERZ / CNT High flow cats are back in stock pm me for best price.

PR370z · 10-25-2010, 04:52 PM

Pulled the trigger today and got ERZ/CNT HFC's, the communication with Thomas (ERZ performance) was great and the price was great. Will let you guys know my opinion after I install them. How much of a HP increase should I expect with the stock exhaust? Also considering CNT CBE when it is available.

chops · 11-24-2010, 11:59 PM

i finally got mine installed on my stock nismo. exhaust sounds infinitely better with a noticeable increase in volume at all RPM's. it sounds like a true CBE now. however, i have a rattle (which im assuming are the 02 bungs - ill tighten those tomorrow and report back). no CEL's after about 50miles yet. [fingers crossed]

djpathfinder · 11-25-2010, 12:05 AM

Quote:

Originally Posted by chops

i finally got mine installed on my stock nismo. exhaust sounds infinitely better with a noticeable increase in volume at all RPM's. it sounds like a true CBE now. however, i have a rattle (which im assuming are the 02 bungs - ill tighten those tomorrow and report back). no CEL's after about 50miles yet. [fingers crossed]

Did you install HFC's too (O2 bungs)? If you only have CBE, it is highly unlikely you'll get a CEL.

chops · 11-25-2010, 10:56 AM

Quote:

Originally Posted by djpathfinder

Did you install HFC's too (O2 bungs)? If you only have CBE, it is highly unlikely you'll get a CEL.

sorry, i have a stock nismo with newly added erz hfc's now. exhaust sounds awesome! i think i may have forgotten to tighten the O2 sensor's so thats whats causing the rattle. will check it out later

djpathfinder · 11-25-2010, 11:18 AM

I can tell you that's exactly the cause of my initial rattling too...I have ERZ HFCs as well. The plugs are just hand-tightened when shipped, so you need to get under there and tighten them up. They will loosen quite quickly with a bit of driving otherwise, so don't wait too long to do it.

PR370z · 11-26-2010, 03:03 PM

My ERZ/CNT HFC's have been on for over 1k and I love them and have no issues (CEL). However did received them with one of the O2 dummy plugs missing. Got a hold of Nissan Generation and John sent me a replacement quickly. In conjunction with my Y pipe my car feels faster (butt dyno) and the sound is just right for me (not too loud but not to low).

chops · 11-26-2010, 10:55 PM

help! first day driving it for a lengthy period and ive noticed a rattle? i went down and tightened the extra O2 bung caps, and now the idle rattle is gone. while i was down there i knocked on the hfc's and noticed another rattle somewhere in the H-pipe. i removed the heatshield clamps, and out came a few rocks that were rattling in there. no more rattle...or so i thought

started it up and here's another rattle! see the below "video". its more like a sound clip, but theres a weird noise. ive loosened all the bolts and re-situated the gaskets, and retightened them...yet im still getting this disgusting sound! its pretty annoying and ricey sounding. could it be a leak somewhere? should i buy new gaskets?

YouTube - IMG 0347

spearfish25 · 11-26-2010, 11:10 PM

Hard to say with my iPhone speaker but it sounds like the typical decel hiss. Is that with the engine fully warmed up? The HFCs make the decel hiss much more noticeable. Just the nature of the beast.

07-27-2010, 06:49 PM	#167 (permalink)
tjlazer A True Z Fanatic Join Date: Dec 2009 Location: Tacoma Age: 52 Posts: 2,496 Drives: Z34, R35 Rep Power: 19	I just got my ERZ HFC's yesterday! Hope to install them tomorrow! Wish me luck with the demon bolt! __________________ 2009 370Z Monterey Blue,Nismo Conversion,RE-11's, K&N Typhoon intakes,Blue Kickplates,Homelink,FI 18" CBE,ERZ HFCs,Hotchkis sways, Swift Spec-R, EVO-R Highwing, UPREV

07-29-2010, 11:11 AM	#170 (permalink)
tjlazer A True Z Fanatic Join Date: Dec 2009 Location: Tacoma Age: 52 Posts: 2,496 Drives: Z34, R35 Rep Power: 19	Installed my ERZ HFC's yesterday! The demon bolt was HELL. Had to rip off the stock cat to be able to break the bolt to remove. In the end I won. Took me like 4 hours! ERZ HFCs are nice and no CEL yet. Extended bung was worthless as the O2 sensor would not install. __________________ 2009 370Z Monterey Blue,Nismo Conversion,RE-11's, K&N Typhoon intakes,Blue Kickplates,Homelink,FI 18" CBE,ERZ HFCs,Hotchkis sways, Swift Spec-R, EVO-R Highwing, UPREV

09-07-2010, 08:12 PM	#172 (permalink)
ERZperformance A True Z Fanatic Join Date: May 2009 Location: Hayward Posts: 3,015 Drives: Nissan GTR Rep Power: 22	ERZ / CNT High flow cats are back in stock pm me for best price. __________________ http://www.cntracing.com http://www.ERZperformance.com 800-363-8599

11-25-2010, 11:18 AM	#177 (permalink)
djpathfinder A True Z Fanatic Join Date: Mar 2010 Location: Edmonton, Canada Posts: 12,910 Drives: 2012 GT-R BE Rep Power: 733	I can tell you that's exactly the cause of my initial rattling too...I have ERZ HFCs as well. The plugs are just hand-tightened when shipped, so you need to get under there and tighten them up. They will loosen quite quickly with a bit of driving otherwise, so don't wait too long to do it. __________________ 2012 GT-R Black Edition Jet Black 2010 370Z 40th Anniversary // SOLD

11-26-2010, 03:03 PM	#178 (permalink)
PR370z Base Member Join Date: Jun 2010 Location: Puerto Rico Posts: 108 Drives: 2008 BMW E60 M5 Rep Power: 14	My ERZ/CNT HFC's have been on for over 1k and I love them and have no issues (CEL). However did received them with one of the O2 dummy plugs missing. Got a hold of Nissan Generation and John sent me a replacement quickly. In conjunction with my Y pipe my car feels faster (butt dyno) and the sound is just right for me (not too loud but not to low). __________________ MODS:293 Whp/ 246 Tq K&N drop ins, ERZ HFC, JIC-Magic Y Pipe, HPS post MAF tubes, Nismo shift knob, 30% tints, JDM rear fog light more to come!

06-21-2010, 05:26 PM	#166 (permalink)
wishihadnav A True Z Fanatic Join Date: Nov 2009 Location: 90090 Posts: 1,851 Drives: Force Fed Nismo Rep Power: 183	^^im not surprised..they do sit low..that's why i prefer a stacked option..

07-27-2010, 09:46 PM	#169 (permalink)
new370 Base Member Join Date: Jul 2010 Location: phila pa Posts: 109 Drives: 09 370z Rep Power: 14	i have never scraped my FI CBE and i hit a 6inch deep pothole today doing about 20mph and my exhaust was fine

10-25-2010, 04:52 PM	#173 (permalink)
PR370z Base Member Join Date: Jun 2010 Location: Puerto Rico Posts: 108 Drives: 2008 BMW E60 M5 Rep Power: 14	Pulled the trigger today and got ERZ/CNT HFC's, the communication with Thomas (ERZ performance) was great and the price was great. Will let you guys know my opinion after I install them. How much of a HP increase should I expect with the stock exhaust? Also considering CNT CBE when it is available.

11-24-2010, 11:59 PM	#174 (permalink)
chops A True Z Fanatic Join Date: Oct 2010 Location: NA Posts: 1,732 Drives: NA Rep Power: 21	i finally got mine installed on my stock nismo. exhaust sounds infinitely better with a noticeable increase in volume at all RPM's. it sounds like a true CBE now. however, i have a rattle (which im assuming are the 02 bungs - ill tighten those tomorrow and report back). no CEL's after about 50miles yet. [fingers crossed]

11-26-2010, 10:55 PM	#179 (permalink)
chops A True Z Fanatic Join Date: Oct 2010 Location: NA Posts: 1,732 Drives: NA Rep Power: 21	help! first day driving it for a lengthy period and ive noticed a rattle? i went down and tightened the extra O2 bung caps, and now the idle rattle is gone. while i was down there i knocked on the hfc's and noticed another rattle somewhere in the H-pipe. i removed the heatshield clamps, and out came a few rocks that were rattling in there. no more rattle...or so i thought started it up and here's another rattle! see the below "video". its more like a sound clip, but theres a weird noise. ive loosened all the bolts and re-situated the gaskets, and retightened them...yet im still getting this disgusting sound! its pretty annoying and ricey sounding. could it be a leak somewhere? should i buy new gaskets? YouTube - IMG 0347

11-26-2010, 11:10 PM	#180 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	Hard to say with my iPhone speaker but it sounds like the typical decel hiss. Is that with the engine fully warmed up? The HFCs make the decel hiss much more noticeable. Just the nature of the beast. __________________ 2013 Cadillac V-Wagon, RIP Z

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
ERZ Performance High Flow Cats	spearfish25	Intake/Exhaust	24	05-10-2011 04:59 PM
High Flow Cats	Savage08	Intake/Exhaust	37	10-08-2009 08:03 AM
High Flow Cats and Y-Pipe	DNadar	Intake/Exhaust	0	06-11-2009 04:44 PM