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

Custom true dual exhaust and HFCs (Video inside)

Thread Tools
 
Search this Thread
 
Old 06-19-2016, 09:03 PM
  #1  
Mkhlmnn
Registered User
Thread Starter
iTrader: (2)
 
Mkhlmnn's Avatar
 
Join Date: Aug 2015
Location: Nebraska
Posts: 370
Received 48 Likes on 39 Posts
Custom true dual exhaust and HFCs (Video inside)

Finally making a full thread for those wanting to build a full exhaust and not wanting to do the aftermarket exhausts available.

I do know exhausts are all personal preference but besides owning a PhoQs single exit, a meisterschaft or Ark full exhaust I am completely happy with my setup.

Hopefully this is informative and helpful! Let me know if you have any questions on building your own!

Parts list:
-Fast Intentions Non-resonated HFCs
-Magnaflow Resonated X-pipe 2.25" in and out
-2.25" piping from Cats to Tips.
-Magnaflow 12225 2.25" oval mufflers
- NSX exhaust tips













and a clip to finish it off, not exactly how it sounds like in person but close:
Old 06-19-2016, 09:24 PM
  #2  
G37xhibeet
Registered User
iTrader: (1)
 
G37xhibeet's Avatar
 
Join Date: Sep 2014
Posts: 822
Received 93 Likes on 77 Posts
Sounds pretty good. I was considering doing something similar on my coupe at one point. Mind sharing how much it cost you overall?
Old 06-19-2016, 10:15 PM
  #3  
Mkhlmnn
Registered User
Thread Starter
iTrader: (2)
 
Mkhlmnn's Avatar
 
Join Date: Aug 2015
Location: Nebraska
Posts: 370
Received 48 Likes on 39 Posts
Well the key to any custom exhaust is finding a shop that uses good products yet gives you a cost effective install. This is the fourth setup ive had fabbed up on cars (only main one for my G) and most expensive by far. I had to use a new shop since I moved and they do a great job but price wise was way higher than I am used to paying. Parts wise though I will happily share.

FI HFCs - $510 for hand made cats built to order, extremely happy and best cats ive ever bought.

Resonated Magnaflow X-pipe 11385: $80 shipped

2x Magnaflow 1225 mufflers: $120 shipped for both

NSX tips (used): $70 shipped

If you can hunt the internet well this is by far the most cost effective way to build IMO.

BTW coupe will sound better and cheaper since it would need a single in and dual out muffler, this seems to always sound better imo than sedans with the duals.
Old 06-19-2016, 10:30 PM
  #4  
G37xhibeet
Registered User
iTrader: (1)
 
G37xhibeet's Avatar
 
Join Date: Sep 2014
Posts: 822
Received 93 Likes on 77 Posts
So I'm assuming you did the piping/welding yourself?
Old 06-19-2016, 10:31 PM
  #5  
4doorfury
Registered User
iTrader: (1)
 
4doorfury's Avatar
 
Join Date: May 2016
Location: Tampa, FL
Posts: 680
Received 75 Likes on 58 Posts
I think it sounds awesome honestly but the 3.5 always had a little more rumble than these 3.7s. Would like to hear it on a 3.7
Old 06-19-2016, 10:46 PM
  #6  
Mkhlmnn
Registered User
Thread Starter
iTrader: (2)
 
Mkhlmnn's Avatar
 
Join Date: Aug 2015
Location: Nebraska
Posts: 370
Received 48 Likes on 39 Posts
Originally Posted by G37xhibeet
So I'm assuming you did the piping/welding yourself?
No, I wish I could have ha. The pipe bender is the major necessity. I used to be pretty decent in High school with welding when I was taking my classes and probably could have done an adequate job but didn't feel like practicing on my own car.

I had a shop in KC do it locally and since they did it in two parts (axle back setup first) then axles back for piping, flex couplers, and tubing for the second parts with the cats I can't remember the exact cost for labor and install but they did a great job.
Old 06-19-2016, 11:10 PM
  #7  
blnewt
Movin On!
iTrader: (13)
 
blnewt's Avatar
 
Join Date: Nov 2009
Posts: 24,877
Received 4,943 Likes on 4,176 Posts
Nice job, looks like you found about the most efficient way to get a true dual w/ quality HFCs. Sounds good too! Need a rolling sound clip, the Gs always sound better under load.
Old 06-19-2016, 11:16 PM
  #8  
kennyz424
Moderator
iTrader: (147)
 
kennyz424's Avatar
 
Join Date: Apr 2013
Location: Florida
Posts: 6,353
Received 1,499 Likes on 1,272 Posts
Really nice job there man! That exhaust sounds badazz to the bone!
Old 06-20-2016, 12:33 AM
  #9  
Ape Factory
Registered Member
iTrader: (3)
 
Ape Factory's Avatar
 
Join Date: Aug 2015
Location: San Antonio, Texas
Posts: 1,618
Received 322 Likes on 231 Posts
Yeah that seriously sounds great.
Old 06-20-2016, 01:11 AM
  #10  
Ricio1991
Registered Member
 
Ricio1991's Avatar
 
Join Date: Jul 2014
Location: Tempe,AZ
Posts: 1,301
Received 113 Likes on 102 Posts
Sounds great good job!
Old 06-20-2016, 08:02 AM
  #11  
ZahyMatar
Registered Member
iTrader: (4)
 
ZahyMatar's Avatar
 
Join Date: Sep 2015
Location: Franklin Park, NJ
Posts: 1,705
Received 340 Likes on 234 Posts
Wow, that sounds great! Like really good, probably my favorite setup yet. I think you just convinced me to go to custom route, but with my.Tanabe and Berks HFC instead.
Old 06-20-2016, 09:22 AM
  #12  
G37xhibeet
Registered User
iTrader: (1)
 
G37xhibeet's Avatar
 
Join Date: Sep 2014
Posts: 822
Received 93 Likes on 77 Posts
Originally Posted by ZahyMatar
Wow, that sounds great! Like really good, probably my favorite setup yet. I think you just convinced me to go to custom route, but with my.Tanabe and Berks HFC instead.
Yeah. The only thing holding me back was what if it sounds like crap lol.
Old 06-20-2016, 11:02 AM
  #13  
j50ny
Premier Member

iTrader: (8)
 
j50ny's Avatar
 
Join Date: Apr 2015
Location: Orange County, NY
Posts: 718
Received 152 Likes on 140 Posts
Holy crap!! That sounds amazing
Old 06-20-2016, 11:48 AM
  #14  
ZahyMatar
Registered Member
iTrader: (4)
 
ZahyMatar's Avatar
 
Join Date: Sep 2015
Location: Franklin Park, NJ
Posts: 1,705
Received 340 Likes on 234 Posts
Originally Posted by G37xhibeet
Yeah. The only thing holding me back was what if it sounds like crap lol.
IF I get mine done, I'm going to see if they can weld flanges so I don't need to weld the HFC to the piping.
Old 06-20-2016, 03:50 PM
  #15  
Mkhlmnn
Registered User
Thread Starter
iTrader: (2)
 
Mkhlmnn's Avatar
 
Join Date: Aug 2015
Location: Nebraska
Posts: 370
Received 48 Likes on 39 Posts
Thanks everyone!

Originally Posted by G37xhibeet
Yeah. The only thing holding me back was what if it sounds like crap lol.
I was a little nervous of the same thing but always considered it a learning curve and thought that if I didnt like the sound I am sure I could change something and it would sound better.

If you like this setup but are worried about rasp, use a H-pipe or Y-pipe and it will have a little less rasp then this, you can also get resonated HFCs from FI and do resonators too.

Originally Posted by ZahyMatar
IF I get mine done, I'm going to see if they can weld flanges so I don't need to weld the HFC to the piping.
I would have done the same but I assumed they would just add them to the piping and bolt it up instead of cutting the flange off and welding the tubing to it.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ClassyPump
G37 Coupe
6
04-12-2016 08:50 PM
el_donks
Intake and Exhaust
0
03-28-2016 10:23 PM
Louiegee97
G37 Coupe
27
03-25-2016 10:44 AM
StAtiXz6
Intake and Exhaust
0
03-22-2016 08:59 PM



Quick Reply: Custom true dual exhaust and HFCs (Video inside)



All times are GMT -4. The time now is 07:52 AM.