3.7 Dual Tip Hitch Exhaust - Jeep Commander Forums: Jeep Commander Forum
Exhaust Questions or advice about exhaust systems? This is the place...

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 15 (permalink) Old 08-25-2009, 06:24 PM Thread Starter
Senior Member
Points: 11,907, Level: 71 Points: 11,907, Level: 71 Points: 11,907, Level: 71
Level up: 65% Level up: 65% Level up: 65%
Activity: 0% Activity: 0% Activity: 0%
 
Kansas1230's Avatar
 
Join Date: Jun 2009
Location: Lawrence, KS
Posts: 809
3.7 Dual Tip Hitch Exhaust

So I'm thinking about routing my exhaust out the hitch gate, but would love some input on muffler/tips options. I've seen this done on the 4.7 with the hitch bezel, but I've got the 3.7. I don't want much more noise, so I was thinking of just rerouting the tailpipe and adding a split tip. However, I'm not sure I want to be able to see that whole setup from behind the Jeep (looks cheap?). I like the idea of a stainless single-in-dual-out muffler, but would that have to include removing the factory muffler, mounting hang points in the spare well, and dealing with more noise? What about keeping the stock muffler and routing the tailpipe through ANOTHER muffler? How retarded is that? Any suggestions/advice would be appreciated.
Attached Thumbnails
Click image for larger version

Name:	63-0628_2.jpg
Views:	214
Size:	64.6 KB
ID:	2578   Click image for larger version

Name:	63-1012.jpg
Views:	195
Size:	22.7 KB
ID:	2583  

Last edited by Kansas1230; 08-26-2009 at 07:33 PM.
Kansas1230 is offline  
Sponsored Links
Advertisement
 
post #2 of 15 (permalink) Old 08-25-2009, 06:48 PM
Banned
Points: 6,103, Level: 50 Points: 6,103, Level: 50 Points: 6,103, Level: 50
Level up: 77% Level up: 77% Level up: 77%
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Jan 2008
Location: Ft. Wayne, Indiana
Posts: 1,406
Go to Borla.com. They make a few slick ss dual tips. If you remove your spare and resonator, a pipe shop could fabricate what you want. They probably could relocate the resonator in a new location so you wouldn't gain any noise. Post a picture when you decide to do this.
dhh3 is offline  
post #3 of 15 (permalink) Old 08-25-2009, 11:26 PM
Senior Member
Points: 15,238, Level: 79 Points: 15,238, Level: 79 Points: 15,238, Level: 79
Level up: 78% Level up: 78% Level up: 78%
Activity: 0% Activity: 0% Activity: 0%
 
adamag25's Avatar
 
Join Date: Jul 2008
Location: Northwest Central Jersey
Posts: 2,629
I don't know if the 3.7 has a resonator but if it does it could be moved. I say if you like the sound you have now then simply cut and move the pipe to the location you want and retain the stock muffler. A place that does mufflers or exhaust work could easily make you a Y-pipe and then you can just bolt on a couple chrome tips. Relocating the last couple feet of the exhaust pipe should be an easy job even if you use some of the pre-bent pieces that you can buy at the parts store and a couple universal hangers. All you have to do is cut out the end of the stock pipe, I would suggest doing this at the point above the rear axle, and then test fit the new pieces in. I doubt that the 2 muffler idea would hurt anything but it could cause too much back pressure and I just don't think it is the best solution for your plan. The only 2 issues I see are getting the right shape Y-pipe (if it needs to be anything special) and then relocating the spare.

Bright Silver 4.7L 2.25 RR/OME lift, Kumho KL71 265/70/17, Flashpaq, Lights, rack, intake, Super44, mopar skids, 4x belly guard, rear fog lights, MM9500 winch, GetLost4x4 winch mount

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

HILLBILLY DELUXE
adamag25 is offline  
 
post #4 of 15 (permalink) Old 08-26-2009, 07:38 PM Thread Starter
Senior Member
Points: 11,907, Level: 71 Points: 11,907, Level: 71 Points: 11,907, Level: 71
Level up: 65% Level up: 65% Level up: 65%
Activity: 0% Activity: 0% Activity: 0%
 
Kansas1230's Avatar
 
Join Date: Jun 2009
Location: Lawrence, KS
Posts: 809
Someone else suggested hanging the 2nd muffler where I like, but just trimming the tailpipe out of sight - no real connection between the two! Would work, but seems like cheating to me. I may drill out the baffles of the new muffler, though. I just don't see how a high-flow muffler that's been hollowed out could create any more backpressure than the huge stock can.
Kansas1230 is offline  
post #5 of 15 (permalink) Old 08-26-2009, 09:20 PM
Senior Member
Points: 8,084, Level: 60 Points: 8,084, Level: 60 Points: 8,084, Level: 60
Level up: 67% Level up: 67% Level up: 67%
Activity: 0% Activity: 0% Activity: 0%
 
Yioryosimo's Avatar
 
Join Date: Oct 2008
Posts: 204
I remember seeing a picture of someone who pulled off the srt exhaust on this forum, but I might be wrong.
Yioryosimo is offline  
post #6 of 15 (permalink) Old 08-26-2009, 10:17 PM
Super Moderator
Points: 59,055, Level: 100 Points: 59,055, Level: 100 Points: 59,055, Level: 100
Level up: 0% Level up: 0% Level up: 0%
Activity: 100% Activity: 100% Activity: 100%
 
jeep5253's Avatar
 
Join Date: Jun 2006
Own a Commander?: Yes
Model year: 2006
Trim Package: Limited
Power-Train: 5.7L V-8 Hemi
4WD
If 4WD - system: QD-II
Posts: 14,853
https://www.jeepcommander.com/forums/showthread.php?t=5769&page=4



2006 Steel Blue 5.7L HEMI Limited 4x4 Build Date: June 9, 2006 Hour 14
Interior: Dark Slate/Light Graystone with Saddle Brown Leather Seats
Quadra-Drive II, NAV, DVD, Trailer Tow Group IV, Off-Road Group II, Remote Start, UConnect, Rear Backup Camera, Chrome Wheels,
Magnaflow cat-back exhaust, Daytime Running Lights enabled, 2" Rough Country Lift with 265/70R17 Goodyear Wrangler AT/S
jeep5253 is offline  
post #7 of 15 (permalink) Old 08-26-2009, 10:23 PM
Super Moderator
Points: 59,055, Level: 100 Points: 59,055, Level: 100 Points: 59,055, Level: 100
Level up: 0% Level up: 0% Level up: 0%
Activity: 100% Activity: 100% Activity: 100%
 
jeep5253's Avatar
 
Join Date: Jun 2006
Own a Commander?: Yes
Model year: 2006
Trim Package: Limited
Power-Train: 5.7L V-8 Hemi
4WD
If 4WD - system: QD-II
Posts: 14,853
https://www.jeepcommander.com/forums/showthread.php?t=3155&page=2


2006 Steel Blue 5.7L HEMI Limited 4x4 Build Date: June 9, 2006 Hour 14
Interior: Dark Slate/Light Graystone with Saddle Brown Leather Seats
Quadra-Drive II, NAV, DVD, Trailer Tow Group IV, Off-Road Group II, Remote Start, UConnect, Rear Backup Camera, Chrome Wheels,
Magnaflow cat-back exhaust, Daytime Running Lights enabled, 2" Rough Country Lift with 265/70R17 Goodyear Wrangler AT/S
jeep5253 is offline  
post #8 of 15 (permalink) Old 08-27-2009, 06:57 AM
Senior Member
Points: 15,238, Level: 79 Points: 15,238, Level: 79 Points: 15,238, Level: 79
Level up: 78% Level up: 78% Level up: 78%
Activity: 0% Activity: 0% Activity: 0%
 
adamag25's Avatar
 
Join Date: Jul 2008
Location: Northwest Central Jersey
Posts: 2,629
My suggestion was not that you do the "cheat" method but simply connect a new section of pipe from above the rear axle to the desired output location. I would think that the 2nd muffler would just change the sound more than anything but it COULD affect back pressure. Other than that why would you want to spend time and money on a muffler just to hollow it out when you could go get a Y-pipe that will cost much less in time and money.

Bright Silver 4.7L 2.25 RR/OME lift, Kumho KL71 265/70/17, Flashpaq, Lights, rack, intake, Super44, mopar skids, 4x belly guard, rear fog lights, MM9500 winch, GetLost4x4 winch mount

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

HILLBILLY DELUXE
adamag25 is offline  
post #9 of 15 (permalink) Old 08-27-2009, 09:35 AM Thread Starter
Senior Member
Points: 11,907, Level: 71 Points: 11,907, Level: 71 Points: 11,907, Level: 71
Level up: 65% Level up: 65% Level up: 65%
Activity: 0% Activity: 0% Activity: 0%
 
Kansas1230's Avatar
 
Join Date: Jun 2009
Location: Lawrence, KS
Posts: 809
Relocating the tailpipe straight out with dual tips would be quite easy. My only hesitation is that I wouldn't want to be able to see straight past the tips to the long, single pipe leading there. A dual tip muffler provides that purposeful-looking backplate to fill the hitch hole.
But my biggest obstacle seems not to be mechanical logistics, but rather the lack of logic available to convince my wife that we need to remove the spare so that I can cut a chunk out of the bumper and stick a pipe (or two (or four)) out the back for aestetic purposes only.
She didn't buy into my MPG improvements, reduced noise levels, or better radio reception claims.
Any suggestions for that conundrum? Where is the marriage counseling thread on this forum?

Last edited by Kansas1230; 08-27-2009 at 11:50 PM.
Kansas1230 is offline  
post #10 of 15 (permalink) Old 01-20-2010, 01:21 AM Thread Starter
Senior Member
Points: 11,907, Level: 71 Points: 11,907, Level: 71 Points: 11,907, Level: 71
Level up: 65% Level up: 65% Level up: 65%
Activity: 0% Activity: 0% Activity: 0%
 
Kansas1230's Avatar
 
Join Date: Jun 2009
Location: Lawrence, KS
Posts: 809
Update:

So I have always implemented the philosophy that I should spend at least the same dollar amount on something that I do want when I am forced to spend money on something I don't want. My failing steering rack has opened several doors for me here. Furthermore, by replacing the rack myself I can save $500, another argument to purchase a fun mod (yes, even though it counteracts the cost saving principles).

So with the same gusto that brought me to do my own rack, I have decided to move forward with the SRT-8 style exhaust project. I ordered a bezel the other night and when it arrives will trial-fit a few exhaust tips to see what will work best. I am leaning towards a pair of Camero style tips that should fill out the width of the bezel opening, but be slim enough to not protrude down too far out of the bumper line.

http://www.mufflermall.com/index.php...roducts_id=661

I am going to cut the stock pipe above the axle and route it to the bumper and add a Y joint for the tips. One of my biggest obstacles was figuring out what to do with/for the spare tire (7% for myself, 98% for my wife). The easy solution (before consulting with my wife) was to just throw it in the back of the Jeep, but the loss of cargo room for trips seemed too much; a new set of run-flats even more. So my proposed solution was to use a bolt-on joint above the axle, keep the spare in the garage during our regular city driving (where a flat would only mean a quick run home), and simply swap tailpipes anytime we make a lengthily trip. Maybe excessive, but what good is cake if you can't eat it, right?

Here's a few pseudo images of my anticipated results (please forgive the quality rendering- I only have Paint on this computer):
Attached Thumbnails
Click image for larger version

Name:	srt mockup 3.jpg
Views:	1674
Size:	477.9 KB
ID:	3129   Click image for larger version

Name:	srt mockup 3b.JPG
Views:	1319
Size:	275.9 KB
ID:	3130  
Kansas1230 is offline  
Sponsored Links
Advertisement
 
Reply

  Jeep Commander Forums: Jeep Commander Forum > Jeep Commander Discussion > Performance Modifications > Exhaust

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Jeep Commander Forums: Jeep Commander Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome