Intake and Exhaust The ultimate forum to ask, discuss, and answer tech related questions regarding MyG37 intake and exhaust.

High Flow Cats DIY?

Thread Tools
 
Search this Thread
 
Old Apr 14, 2017 | 12:16 PM
  #1  
HotSawce's Avatar
HotSawce
Thread Starter
Banned
 
Joined: Oct 2016
Posts: 278
Likes: 8
From: Usa
High Flow Cats DIY?

I have some fast intentions RHFC that I want to install. My skillset isn't that great. The only similar thing I've ever done was put on my axle back exhaust. Is there a DIY on here someone could link me to that shows how to do this? I tried searching but couldn't find anything.
Reply
Old Apr 14, 2017 | 12:42 PM
  #2  
j50ny's Avatar
j50ny
Premier Member
iTrader: (8)
 
Joined: Apr 2015
Posts: 718
Likes: 152
From: Orange County, NY
I would not recommend tackling this since you're a self-admitted novice. Even most people who do their own work have let a shop handle this. The bolts on the bottom are fine. It's the ones at the top. Not saying it can't be done, but be prepared for a lot of cursing and frustration.

Google search yields a number of threads regarding hfc and test pipe installs. Here is one of them:
https://www.myg37.com/forums/d-i-y-i...e-install.html
Reply
Old Apr 14, 2017 | 02:56 PM
  #3  
Kris9884's Avatar
Kris9884
Registered Member
iTrader: (3)
 
Joined: Feb 2016
Posts: 2,073
Likes: 202
From: MO
The work itself isn't hard, its just having the right tools for the job. If you have jack stands, PB blaster, a torch and hella extensions, it shouldn't be a problem.
Reply
Old Apr 14, 2017 | 03:30 PM
  #4  
Stachuu's Avatar
Stachuu
Registered Member
iTrader: (1)
 
Joined: Apr 2015
Posts: 217
Likes: 23
There is a video on youtube guy does it on his g37 sedan.
Reply
Old Apr 14, 2017 | 03:59 PM
  #5  
ILM-NC G37S's Avatar
ILM-NC G37S
Registered Member
10 Year Member
iTrader: (3)
 
Joined: Apr 2014
Posts: 4,825
Likes: 1,600
From: NC
+1 for what Kris9884 mentioned- the job is not difficult- I did it once and am about to do it again, but if you do not have the right tools you would be better off paying a shop. The top bolt on the driver side is a complete bi+ch and without at least a 18-20" socket extension the bolt will be impossible to reach.

For this job quality tools are a complete must and even then expect a lot of cursing and aggravation.
Reply
Old Apr 14, 2017 | 04:15 PM
  #6  
blnewt's Avatar
blnewt
Movin On!
iTrader: (13)
 
Joined: Nov 2009
Posts: 24,876
Likes: 4,949
Only other note I'd make is use the 50:50 Acetone/ATF mix to break the rust from the bolts, works much better than PB blast or any other rust breaker. Here's a thread I made that might be of help, those Harbor Freight wobble extensions are a must!
https://www.myg37.com/forums/g37-sed...y-be-atch.html
Reply
Old Apr 14, 2017 | 04:55 PM
  #7  
HotSawce's Avatar
HotSawce
Thread Starter
Banned
 
Joined: Oct 2016
Posts: 278
Likes: 8
From: Usa
Yeah, after everything I've read from numerous different threads, I think I'm gonna pass. At first, I wanted to tackle this project, due to not wanting to feel incapable. But now I don't feel so bad haha.
Reply
Old Apr 15, 2017 | 10:15 AM
  #8  
slartibartfast's Avatar
slartibartfast
Super Moderator
10 Year Member
Liked
Loved
Community Favorite
iTrader: (7)
 
Joined: Oct 2014
Posts: 6,105
Likes: 842
From: Houston, Tx
Please note there are two subforums on this board that you should check, DIY and Intake and Exhaust.

This thread should have been started in one of those two.
Reply
Old Apr 15, 2017 | 02:09 PM
  #9  
Jonesmeister11's Avatar
Jonesmeister11
Premier Member
10 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Mar 2014
Posts: 656
Likes: 51
From: Phoenix AZ
Honestly, the job is super easy, but make sure there are not children around because you will be dropping some cuss words. This was one of the first things I did on my g35 back in the day when I was 17 with no previous automotive work skill. It is time consuming, but I was able to break the bolts loose with some hand tools, and pb blaster. Really the longest part is waiting for the pb blaster to work it's magic. Like others said, you just need the right tools, i.e. long extension, and a joint. I bought mine from autozone.

Keep in mind I did the work myself because, at 17, I couldn't see paying a shop money. Now that I am 25 with back issues, been there done that, I would probably have a buddy or call around to local shops.

Hope that helps!
Reply
Old Apr 16, 2017 | 01:21 AM
  #10  
Ape Factory's Avatar
Ape Factory
Registered Member
iTrader: (3)
 
Joined: Aug 2015
Posts: 1,618
Likes: 323
From: San Antonio, Texas
I'm substantially older than Jonesmeister11 and it's doable on jack stands in your garage. Like others said, the proper, QUALITY tools are a must, especially sockets that won't crack. The acetone/brake fluid mix does work and I treated mine several times over the course of two weeks.

It also depends on what sort of condition your car is in and how rusted out the bolts are. The salty air can create a lot of rust in short order.

Ignore Slarti, he's REALLY old.
Reply
Old Apr 16, 2017 | 09:50 AM
  #11  
blnewt's Avatar
blnewt
Movin On!
iTrader: (13)
 
Joined: Nov 2009
Posts: 24,876
Likes: 4,949
I'm older than all you guys and I got it done
And it's Acetone/ATF mix ^^^
Reply
Old Apr 16, 2017 | 11:25 AM
  #12  
slartibartfast's Avatar
slartibartfast
Super Moderator
10 Year Member
Liked
Loved
Community Favorite
iTrader: (7)
 
Joined: Oct 2014
Posts: 6,105
Likes: 842
From: Houston, Tx
I'm a happy hippy
Takin' little trippy
Drivin' on down the road...

Reply
Old Apr 16, 2017 | 06:10 PM
  #13  
Surfnazi's Avatar
Surfnazi
Registered Member
 
Joined: Nov 2013
Posts: 2,109
Likes: 176
It can be done but I'd rather pay 50 bucks to have it done. That's what my tech at Infiniti charged to do it one the side
Reply
Old Apr 16, 2017 | 06:24 PM
  #14  
blnewt's Avatar
blnewt
Movin On!
iTrader: (13)
 
Joined: Nov 2009
Posts: 24,876
Likes: 4,949
Originally Posted by Surfnazi
It can be done but I'd rather pay 50 bucks to have it done. That's what my tech at Infiniti charged to do it one the side
That might qualify for the deal of the century! Hell, forget might, that IS the deal of the century
Reply
Old Apr 16, 2017 | 09:43 PM
  #15  
Calidoso's Avatar
Calidoso
Registered Member
iTrader: (1)
 
Joined: Mar 2016
Posts: 146
Likes: 11
From: Milton, FL
Some advice needed on this topic:

I went to have my Berk HFCs installed about 2 weeks ago when I moved down to Florida from New Jersey. There was a muffler shop highly recommended to me by the tire place who installed my vert wheels. He quoted me $100 for the work. On install day, 30 mins into the install he claimed that the bolts were too rusted that he couldn't even get a grip on them and recommended I get them cut off at another location. I was kinda confused as to why he couldn't/wouldn't do it himself. Could be he actually could not grip them or that i didn't use any PB Blaster prior to removal and for the money it wasn't worth the work. With that being said should I:

1. attempt to remove them myself using the PB blaster for a week with the risk of being stuck halfway through removal?

2. Take his advice, look for a new shop that would be willing and able to get the bolts cut off? What price should i be looking forward to for this service?
Reply



All times are GMT -4. The time now is 06:27 AM.