ERZ Performance High Flow Cats, Install and Review Thread

sinceday1 · 04-12-2010, 11:56 AM

There are one bolt on each side of cat that are EXTREMELY difficult to remove. Due the the accessibility and how Nissan decided to torture 370z owners who wish to pollute the environment a bit more than it is necessary.

(I haven't done my install yet but that's the info i got from reading HFC DIY)

puckshaw · 04-12-2010, 04:16 PM

Quote:

Originally Posted by djpathfinder

So from reading this and a couple of other threads, this looks like a fairly straightforward DIY...would you guys concur? Did you guys just put the car on jackstands and just crept around during the install? I'm considering getting a HFC along with a Invidia Gemini exhaust. Trying to determine if installing a HFC and CBE is something I can do with just jackstands. Car is 3 weeks old, so the bolts should come off easily, just not sure if there's enough room to maneuver all the piping while taking down the stock and installing the new with only about 12-16" of ground clearance to work with.

Seems like hit or miss with the top bolts on each side. I've done 2 HFC installs so far. Each time the bolts did break loose with considerable force. I recommend a breaker bar with a pipe/jack handle slid over it. On the second install, the bolt broke loose but as we tried to back it out the head snapped off. This isn't an issue though since the stock cat will come right off at that point.

Some guys aren't so lucky though and have to torch/cut the bolts off. Just soak those puppies in PB Blaster the night before and hope for the best.

You'll have plenty of room with jack stands. We actually did the second install with just the front on ramps.

djpathfinder · 04-12-2010, 04:44 PM

Quote:

Originally Posted by puckshaw

Seems like hit or miss with the top bolts on each side. I've done 2 HFC installs so far. Each time the bolts did break loose with considerable force. I recommend a breaker bar with a pipe/jack handle slid over it. On the second install, the bolt broke loose but as we tried to back it out the head snapped off. This isn't an issue though since the stock cat will come right off at that point.

Some guys aren't so lucky though and have to torch/cut the bolts off. Just soak those puppies in PB Blaster the night before and hope for the best.

You'll have plenty of room with jack stands. We actually did the second install with just the front on ramps.

Do you think it'll be hard to break the top bolt loose even on a brand new vehicle? Thanks for the advise. I was more worried about having enough room to maneuver pieces of a CBE because they are longer. OK, I may have to go buy some tools...cool!

puckshaw · 04-12-2010, 04:57 PM

Quote:

Originally Posted by djpathfinder

Do you think it'll be hard to break the top bolt loose even on a brand new vehicle? Thanks for the advise. I was more worried about having enough room to maneuver pieces of a CBE because they are longer. OK, I may have to go buy some tools...cool!

Both cars were low mileage and it still took some serious torque to break them loose. Mine had around 1500 miles on it. With the proper tools it's not hard though.

efuseakay · 04-14-2010, 04:01 PM

Quote:

Originally Posted by djpathfinder

Do you think it'll be hard to break the top bolt loose even on a brand new vehicle? Thanks for the advise. I was more worried about having enough room to maneuver pieces of a CBE because they are longer. OK, I may have to go buy some tools...cool!

Yes... as my guy says, "They come pre-stripped from the factory!"... lol Even on my 2010 G37xS sedan that I picked up 2 weeks ago. heh

They had to use the torch on my driver's side bolt.

Other than that, install went fine. Took more than an hour though because of that one damn bolt.

I did get an SES light today though (had them installed yesterday)... P2A03... I cleared it with my OBDII scanner, and I'll see if it pops up again. Hopefully it was just a fluke, but we will see.

I guess that code has to do with one of the primary a/f sensors. AFAIK, the battery was never disconnected. If it pops up again, I'll try that.

ERZperformance · 04-14-2010, 09:51 PM

[QUOTE=efuseakay;496568]Yes... as my guy says, "They come pre-stripped from the factory!"... lol Even on my 2010 G37xS sedan that I picked up 2 weeks ago. heh

First G37 installed so far let your buddies at myg37.com know about this .

efuseakay · 04-15-2010, 02:01 AM

Yup they know! I did have a P2A03 code pop up today. I did clear it so we will see if it comes back. If it does there may be a leak at one of the header flanges from the install. I'll update after I put some more miles on the car and break them in so the rasp quiets down a bit.

Other than the code, so far so good!

ERZperformance · 04-15-2010, 04:56 AM

Quote:

Originally Posted by efuseakay

Yup they know! I did have a P2A03 code pop up today. I did clear it so we will see if it comes back. If it does there may be a leak at one of the header flanges from the install. I'll update after I put some more miles on the car and break them in so the rasp quiets down a bit.

Other than the code, so far so good!

if it pop up again let me know I have even longer 02 cel fix that might work

ERZperformance · 04-15-2010, 04:58 AM

our CNT true dual catback is coming anyone from the bay area , CA will let us test on their car (free exhaust)

ERZperformance · 04-15-2010, 05:26 AM

I see your post on G37 thanks for letting g37 member know about this.

370Zsteve · 04-21-2010, 04:58 PM

Quote:

Originally Posted by Nissangeneration

our CNT true dual catback is coming anyone from the bay area , CA will let us test on their car (free exhaust)

Anyone take this offer?

ERZperformance · 04-21-2010, 09:09 PM

Quote:

Originally Posted by 370Zsteve

Anyone take this offer?

Lou at AMP is going to test it for us, thanks for all the interest.

efuseakay · 04-15-2010, 08:51 AM

Welcome, ERZ! If I get the CEL again I'll let you know! Have you had any other reports of the P2A03?

efuseakay · 04-21-2010, 04:24 PM

Update: loose driver's side o2 sensor was the cause. I've put enough miles on the car now to say that the issue has been taken care of. Thanks for such a great affordable product, ERZ!

I'll get a video up within the next few weeks after they have broken in.

efuseakay · 05-11-2010, 04:06 PM

My extenders fit just fine have them send you new ones.

04-14-2010, 09:51 PM	#6 (permalink)
ERZperformance A True Z Fanatic Join Date: May 2009 Location: Hayward Posts: 3,015 Drives: Nissan GTR Rep Power: 24	[QUOTE=efuseakay;496568]Yes... as my guy says, "They come pre-stripped from the factory!"... lol Even on my 2010 G37xS sedan that I picked up 2 weeks ago. heh First G37 installed so far let your buddies at myg37.com know about this . __________________ http://www.cntracing.com http://www.ERZperformance.com 800-363-8599

04-15-2010, 04:58 AM	#9 (permalink)
ERZperformance A True Z Fanatic Join Date: May 2009 Location: Hayward Posts: 3,015 Drives: Nissan GTR Rep Power: 24	our CNT true dual catback is coming anyone from the bay area , CA will let us test on their car (free exhaust) __________________ http://www.cntracing.com http://www.ERZperformance.com 800-363-8599

04-15-2010, 05:26 AM	#10 (permalink)
ERZperformance A True Z Fanatic Join Date: May 2009 Location: Hayward Posts: 3,015 Drives: Nissan GTR Rep Power: 24	I see your post on G37 thanks for letting g37 member know about this. __________________ http://www.cntracing.com http://www.ERZperformance.com 800-363-8599

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04-12-2010, 11:56 AM	#1 (permalink)
sinceday1 Track Member Join Date: Oct 2009 Location: Canada Posts: 514 Drives: 09 Nissan 370Z M6 Rep Power: 18	There are one bolt on each side of cat that are EXTREMELY difficult to remove. Due the the accessibility and how Nissan decided to torture 370z owners who wish to pollute the environment a bit more than it is necessary. (I haven't done my install yet but that's the info i got from reading HFC DIY)

04-15-2010, 02:01 AM	#7 (permalink)
efuseakay Enthusiast Member Join Date: Mar 2010 Location: The DAYNGA ZONE! Posts: 404 Drives: 2010 G37xS Sedan Rep Power: 17	Yup they know! I did have a P2A03 code pop up today. I did clear it so we will see if it comes back. If it does there may be a leak at one of the header flanges from the install. I'll update after I put some more miles on the car and break them in so the rasp quiets down a bit. Other than the code, so far so good!

04-15-2010, 08:51 AM	#13 (permalink)
efuseakay Enthusiast Member Join Date: Mar 2010 Location: The DAYNGA ZONE! Posts: 404 Drives: 2010 G37xS Sedan Rep Power: 17	Welcome, ERZ! If I get the CEL again I'll let you know! Have you had any other reports of the P2A03?

04-21-2010, 04:24 PM	#14 (permalink)
efuseakay Enthusiast Member Join Date: Mar 2010 Location: The DAYNGA ZONE! Posts: 404 Drives: 2010 G37xS Sedan Rep Power: 17	Update: loose driver's side o2 sensor was the cause. I've put enough miles on the car now to say that the issue has been taken care of. Thanks for such a great affordable product, ERZ! I'll get a video up within the next few weeks after they have broken in.

05-11-2010, 04:06 PM	#15 (permalink)
efuseakay Enthusiast Member Join Date: Mar 2010 Location: The DAYNGA ZONE! Posts: 404 Drives: 2010 G37xS Sedan Rep Power: 17	My extenders fit just fine have them send you new ones.