Muffler - Does it matter? - JeepForum.com

 
LinkBack Thread Tools
post #1 of 10 Old 10-15-2013, 01:47 PM Thread Starter
Line58
Registered User
1998 TJ Wrangler 
 
Join Date: Aug 2011
Location: Clovis
Posts: 756
Muffler - Does it matter?

The other week my Jeep began sounding like a demolition derby car (really rough, raw sound. Makes a bub bub bub sound when I engine brake). From what I have been told and read it sounds like its a muffler issue. Assuming that this is correct, I have two questions:

First, can driving the Jeep like this damage the cat or engine?

Second, what is the best aftermarket muffler? I understand that an aftermarket muffler isn't going to make a noticeable improvement in how my 2.5 performs, however I don't want to pick one that will make my rig sound like crap either. Any suggestions would be greatly appreciated.

Line58 is offline  
Sponsored Links
Advertisement
 
post #2 of 10 Old 10-15-2013, 01:48 PM
bobjp
Registered User
 
Join Date: Aug 2005
Posts: 1,850
You should probably confirm that it's the muffler then worry about what to replace. There's a hole somewhere.

97 TJ sport.
bobjp is online now  
post #3 of 10 Old 10-15-2013, 01:52 PM
sterdest
Registered User
1997 XJ Cherokee 
 
Join Date: Jun 2010
Location: idaho falls
Posts: 147
It would be pretty easy to verify that there is a hole. And no a muffler isn't really important. The emission laws of your state might require one but all it really does is "muffle" the exhaust sound to make it quieter. And borla makes a very nice one but something cheap would be just as good if you aren't going to replace more. I would look into an edlebrock or something similar.

$$Just Empty Every Pocket$$
sterdest is offline  
post #4 of 10 Old 10-15-2013, 01:55 PM
GOLENJEEPTJ
Running Secretly Amok!
 
GOLENJEEPTJ's Avatar
2002 TJ Wrangler 
 
Join Date: May 2007
Location: Ventura ,CA.
Posts: 9,715
I would look into a stainless Magnaflow sound great and last a long time.
GOLENJEEPTJ is offline  
post #5 of 10 Old 10-20-2013, 09:10 PM Thread Starter
Line58
Registered User
1998 TJ Wrangler 
 
Join Date: Aug 2011
Location: Clovis
Posts: 756
Went a head and ordered a Dynomax Turbo muffler. It's about 1/5 the price of the Magnaflow and has good reviews. Are there any draw backs to using just the muffler with the stock tail pipe, as opposed to ordering the Dynomax cat back system?
Line58 is offline  
post #6 of 10 Old 10-20-2013, 10:15 PM
Maverickxeo
Registered User
2002 TJ Wrangler 
 
Join Date: Jan 2010
Location: Wetaskiwin
Posts: 2,372
Garage
Quote:
Originally Posted by Line58 View Post
Went a head and ordered a Dynomax Turbo muffler. It's about 1/5 the price of the Magnaflow and has good reviews. Are there any draw backs to using just the muffler with the stock tail pipe, as opposed to ordering the Dynomax cat back system?
An aftermarket muffler will just sound different.

In MOST cases, provided the muffler is NOT a restriction (its NOT on the TJ), changing the muffler will do nothing but sound differently.

If you want the catback system, it will change the sound again (being that again, the exhaust on a TJ is NOT restrictive).

If you want a drawback, it could be the sound if you dont like it (too loud, too much drone, etc), otherwise it shouldnt do anything negative.

You MAY even get a SLIGHT increase in power (not enough to make it into a speed demon or anything, but any dyno Ive seen from a TJ exhaust is very minimal).
Maverickxeo is offline  
post #7 of 10 Old 10-21-2013, 09:34 AM
jeepinhokie
Registered User
2004 TJ Wrangler 
 
Join Date: Apr 2010
Location: MD
Posts: 2,812
Quote:
Originally Posted by Line58 View Post
Went a head and ordered a Dynomax Turbo muffler. It's about 1/5 the price of the Magnaflow and has good reviews. Are there any draw backs to using just the muffler with the stock tail pipe, as opposed to ordering the Dynomax cat back system?
the dynomax super turbo muffler will do just fine.

though the shape and size might be different than the OEM one, so the tailpipe will have to be modified to fit properly.

which part number did you get?
jeepinhokie is offline  
post #8 of 10 Old 10-21-2013, 10:35 AM
ddecker2010
Registered User
1997 TJ Wrangler 
 
Join Date: Nov 2011
Location: Liberty
Posts: 39
It could be your exhaust manifold too since they are known for cracking, just my .02!

97 TJ Black I6 5speed | 4in RC | 35 MTR Kevlar
07 BMW 335i - TURBOS!!
ddecker2010 is offline  
post #9 of 10 Old 11-08-2013, 02:31 PM Thread Starter
Line58
Registered User
1998 TJ Wrangler 
 
Join Date: Aug 2011
Location: Clovis
Posts: 756
Quote:
Originally Posted by jeepinhokie View Post
the dynomax super turbo muffler will do just fine.

though the shape and size might be different than the OEM one, so the tailpipe will have to be modified to fit properly.

which part number did you get?
The part number is 17731.
Line58 is offline  
post #10 of 10 Old 11-08-2013, 02:37 PM Thread Starter
Line58
Registered User
1998 TJ Wrangler 
 
Join Date: Aug 2011
Location: Clovis
Posts: 756
I finally installed the muffler this morning. I cut off input pipe as close to the muffler as possible and cut the tail pipe flush with the weld on the muffler to maximize the length of pipe in the hopes the Dynomax exhaust would be long enough to reach. It wasn't. Fortunately the Napa down the street carries 14" x 2.25" straight tube. After inserting 7.5" of new tube between the muffler and the pipe from the cat I was able to get everything put together.
Line58 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com 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 e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




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



Posting Rules  
You may post new threads
You may 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 Off
Pingbacks are On
Refbacks are On

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