Invidia Gemini CBE & ERZ HFC Review (with db comparison)

djpathfinder · 06-02-2010, 01:18 AM

Thanks for listening to the clip and expressing your thoughts, Bluestyle. I crawled underneath tonite to see if I could find something, and I did...the problem is simple...the caps to the secondary O2 bungs (at least I think that's what they're called) were loose. The left one was half unscrewed and both were easily screwed in/out by hand. The technician obviously didn't pay attention to make sure everything was secured. Tightened those and went for a test drive, and man does the exhaust sound sweet!!!! And, of course, no more rattle!

Yes, I had the Invidia exhaust installed before. Ran it for about 600 km before the HFC install. I definitely want to get my ECU tuned...likely Cobb AP. That would be cool to get the same map as yours, since we have the same equipment. I read your other thread and 25-30 HP and lb-ft gain after the tune is crazy awesome, man! I wonder if I should get an e-tune from them or even a dyno tune somewhere to get the most gains (as each car could be slightly different, we live in different climates/altitudes, and buy different gas)???

Also, thanks to Nissangeneration of ERZ (forum sponsor) for suggesting that I should check the O2 caps. If anyone else is interested in a set of ERZ HFCs, definitely fire him a PM.

BTW, 250 km so far and no CELs.

ERZperformance · 06-02-2010, 05:46 AM

Quote:

Originally Posted by djpathfinder

Thanks for listening to the clip and expressing your thoughts, Bluestyle. I crawled underneath tonite to see if I could find something, and I did...the problem is simple...the caps to the secondary O2 bungs (at least I think that's what they're called) were loose. The left one was half unscrewed and both were easily screwed in/out by hand. The technician obviously didn't pay attention to make sure everything was secured. Tightened those and went for a test drive, and man does the exhaust sound sweet!!!! And, of course, no more rattle!

Yes, I had the Invidia exhaust installed before. Ran it for about 600 km before the HFC install. I definitely want to get my ECU tuned...likely Cobb AP. That would be cool to get the same map as yours, since we have the same equipment. I read your other thread and 25-30 HP and lb-ft gain after the tune is crazy awesome, man! I wonder if I should get an e-tune from them or even a dyno tune somewhere to get the most gains (as each car could be slightly different, we live in different climates/altitudes, and buy different gas)???

Also, thanks to Nissangeneration of ERZ (forum sponsor) for suggesting that I should check the O2 caps. If anyone else is interested in a set of ERZ HFCs, definitely fire him a PM.

BTW, 250 km so far and no CELs.

great, I was thinking that was the problem, that 02 cap was not tight enough.

bluestyle55 · 06-02-2010, 07:27 AM

Oh sweet...I guess I just assumed that making sure the O2 sensors were tight would have been something they would have done. (Wish there was a 'slap upside the head' icon that I could direct toward your mechanic)

So glad you didn’t have bad cats though. That would have sucked to have had to rip them off and re-install.

Yea, your right about the tune…you do have different altitude and gas. You’re probably better off going to Cobb directly based on where you live in Canada. Looks like you are half way across the world from Altered Atmosphere : (

NXTAZEE · 06-07-2010, 07:11 PM

Quote:

Originally Posted by djpathfinder

Thanks for listening to the clip and expressing your thoughts, Bluestyle. I crawled underneath tonite to see if I could find something, and I did...the problem is simple...the caps to the secondary O2 bungs (at least I think that's what they're called) were loose. The left one was half unscrewed and both were easily screwed in/out by hand. The technician obviously didn't pay attention to make sure everything was secured. Tightened those and went for a test drive, and man does the exhaust sound sweet!!!! And, of course, no more rattle!

Yes, I had the Invidia exhaust installed before. Ran it for about 600 km before the HFC install. I definitely want to get my ECU tuned...likely Cobb AP. That would be cool to get the same map as yours, since we have the same equipment. I read your other thread and 25-30 HP and lb-ft gain after the tune is crazy awesome, man! I wonder if I should get an e-tune from them or even a dyno tune somewhere to get the most gains (as each car could be slightly different, we live in different climates/altitudes, and buy different gas)???

Also, thanks to Nissangeneration of ERZ (forum sponsor) for suggesting that I should check the O2 caps. If anyone else is interested in a set of ERZ HFCs, definitely fire him a PM.

BTW, 250 km so far and no CELs.

How did you find the exhaust note after the HFC were installed?

djpathfinder · 06-07-2010, 11:08 PM

Quote:

Originally Posted by NXTAZEE

How did you find the exhaust note after the HFC were installed?

It just purrs! Exactly as Bluestyle described it. Nice deep throaty tone...just how a sports car should sound. Louder and richer than just CBE alone, but mostly when gunning it. Not much louder when cruising. I find myself driving with the windows rolled down most of the time just because it sounds so good.

ERZperformance · 06-08-2010, 05:45 AM

glad you like your HFCs .

bradz · 06-10-2010, 07:28 PM

when installing your ERZ hfc did you guys use the factory gasket between the cats and y-pipe?

06-02-2010, 01:18 AM	#1 (permalink)
djpathfinder A True Z Fanatic Join Date: Mar 2010 Location: Edmonton, Canada Posts: 12,910 Drives: 2012 GT-R BE Rep Power: 735	Thanks for listening to the clip and expressing your thoughts, Bluestyle. I crawled underneath tonite to see if I could find something, and I did...the problem is simple...the caps to the secondary O2 bungs (at least I think that's what they're called) were loose. The left one was half unscrewed and both were easily screwed in/out by hand. The technician obviously didn't pay attention to make sure everything was secured. Tightened those and went for a test drive, and man does the exhaust sound sweet!!!! And, of course, no more rattle! Yes, I had the Invidia exhaust installed before. Ran it for about 600 km before the HFC install. I definitely want to get my ECU tuned...likely Cobb AP. That would be cool to get the same map as yours, since we have the same equipment. I read your other thread and 25-30 HP and lb-ft gain after the tune is crazy awesome, man! I wonder if I should get an e-tune from them or even a dyno tune somewhere to get the most gains (as each car could be slightly different, we live in different climates/altitudes, and buy different gas)??? Also, thanks to Nissangeneration of ERZ (forum sponsor) for suggesting that I should check the O2 caps. If anyone else is interested in a set of ERZ HFCs, definitely fire him a PM. BTW, 250 km so far and no CELs. __________________ 2012 GT-R Black Edition Jet Black 2010 370Z 40th Anniversary // SOLD Last edited by djpathfinder; 06-02-2010 at 01:21 AM.

06-02-2010, 07:27 AM	#3 (permalink)
bluestyle55 Premium Member Join Date: Apr 2009 Location: Pa Posts: 194 Drives: 09 Nissan 370z B 6M Rep Power: 18	Oh sweet...I guess I just assumed that making sure the O2 sensors were tight would have been something they would have done. (Wish there was a 'slap upside the head' icon that I could direct toward your mechanic) So glad you didn’t have bad cats though. That would have sucked to have had to rip them off and re-install. Yea, your right about the tune…you do have different altitude and gas. You’re probably better off going to Cobb directly based on where you live in Canada. Looks like you are half way across the world from Altered Atmosphere : ( __________________ 2009 370z 6MT Touring w/ Sport Pkg \| Invidia Gemini CBE\| Stillen G3 CAI \| ERZ HFC's \|X-Pel Clear Bra \| 20% Tint

06-08-2010, 05:45 AM	#6 (permalink)
ERZperformance A True Z Fanatic Join Date: May 2009 Location: Hayward Posts: 3,015 Drives: Nissan GTR Rep Power: 24	glad you like your HFCs . __________________ http://www.cntracing.com http://www.ERZperformance.com 800-363-8599

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06-10-2010, 07:28 PM	#7 (permalink)
bradz Enthusiast Member Join Date: Jul 2009 Location: Pinellas County Florida Posts: 348 Drives: 09' 370z MB 6spd Rep Power: 18	when installing your ERZ hfc did you guys use the factory gasket between the cats and y-pipe?