Muffler - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Muffler

Bill Baird Motorsports DIY parts - NalinMFG.comFS: 2007-2013 Jeep Wrangler "HALO" Angel Eye KitFS: Wranger BRIGHT License Plate LED! Just $3! Great value

Reply
Unread 12-07-2007, 07:51 AM   #1
DTrem08
Registered User
1996 ZJ 
 
Join Date: Apr 2007
Location: Massachusetts
Posts: 378
Muffler

I plan on having my brother get me a muffler for christmas...a Flowmaster Super 44. Im only replacing the muffler, and my question is what diameter piping do I need and do I need center in/our or something offset. Anyone know?

__________________
**LOOKING FOR MY JEEP, LAST SEEN IN CT and CURRENTLY HAS CT PLATES
White 1996 Grand Cherokee Laredo, I6 4.0 20% tint all around
**KOR Radiator Support, IRO 3.5" lift, 31/10.5/15" Maxxis Bighorns on 15x8 Cragar Soft 8's, JKS Bar Pin Eliminators, KOR Light Bar, 4 Black KC HiLites, Flowmaster Super 44 with turndown/no tailpipe, OME Steering Stabilizer, Black KOR square rock sliders
**If youve seen it around CT or know about it, PM me
DTrem08 is offline   Reply With Quote
Unread 12-07-2007, 07:54 AM   #2
nashmd454
Registered User
1996 ZJ 
 
Join Date: Feb 2004
Location: Iowa
Posts: 4,743
I would say check the FAQ's potion of this forum and see what size piping you have on your 4.0 already...then go from there.
__________________
96' JGC V-8 5.2L ltd.
way too much to list.
Thought for the day:
If GOD gave HIS only son for us...can't we at least give HIM an hour of our time a day.


[URL]http://photobucket.com/albums/v639/nashmd454[/URL]

[url]http://groups.jeepforum.com/The_Dark_Side[/url]
nashmd454 is offline   Reply With Quote
Unread 12-07-2007, 07:56 AM   #3
ArloGuthroJeep
Mr. Hyde!
 
ArloGuthroJeep's Avatar
2004 WJ 
 
Join Date: Mar 2005
Location: Boulder, CO
Posts: 23,081
2.25" is the pipe size, get underneath your Jeep and look what you have for offsets right now
__________________
'04 WJ, 6" Clayton LA's, 242 SYE, 35" BFG MT KM2's, 4.56 gears, & D44a locked
'14 WK2 Limited w/5.7L, ORAI, & Tow Package
ArloGuthroJeep is offline   Reply With Quote
Unread 12-07-2007, 07:58 AM   #4
DTrem08
Registered User
1996 ZJ 
 
Join Date: Apr 2007
Location: Massachusetts
Posts: 378
Well Im in school now, Ill check it when I get home

If I just get a turndown after the muffler, would that make it louder while still being legal?
__________________
**LOOKING FOR MY JEEP, LAST SEEN IN CT and CURRENTLY HAS CT PLATES
White 1996 Grand Cherokee Laredo, I6 4.0 20% tint all around
**KOR Radiator Support, IRO 3.5" lift, 31/10.5/15" Maxxis Bighorns on 15x8 Cragar Soft 8's, JKS Bar Pin Eliminators, KOR Light Bar, 4 Black KC HiLites, Flowmaster Super 44 with turndown/no tailpipe, OME Steering Stabilizer, Black KOR square rock sliders
**If youve seen it around CT or know about it, PM me
DTrem08 is offline   Reply With Quote
Unread 12-07-2007, 08:00 AM   #5
nashmd454
Registered User
1996 ZJ 
 
Join Date: Feb 2004
Location: Iowa
Posts: 4,743
it will make more interior noise and also could allow the exhaust to seep into the vehicle itself. So I hear.
__________________
96' JGC V-8 5.2L ltd.
way too much to list.
Thought for the day:
If GOD gave HIS only son for us...can't we at least give HIM an hour of our time a day.


[URL]http://photobucket.com/albums/v639/nashmd454[/URL]

[url]http://groups.jeepforum.com/The_Dark_Side[/url]
nashmd454 is offline   Reply With Quote
Unread 12-07-2007, 08:18 PM   #6
DTrem08
Registered User
1996 ZJ 
 
Join Date: Apr 2007
Location: Massachusetts
Posts: 378
Well it looks like a center in/offset out...2.25" piping?
__________________
**LOOKING FOR MY JEEP, LAST SEEN IN CT and CURRENTLY HAS CT PLATES
White 1996 Grand Cherokee Laredo, I6 4.0 20% tint all around
**KOR Radiator Support, IRO 3.5" lift, 31/10.5/15" Maxxis Bighorns on 15x8 Cragar Soft 8's, JKS Bar Pin Eliminators, KOR Light Bar, 4 Black KC HiLites, Flowmaster Super 44 with turndown/no tailpipe, OME Steering Stabilizer, Black KOR square rock sliders
**If youve seen it around CT or know about it, PM me
DTrem08 is offline   Reply With Quote
Unread 12-07-2007, 08:25 PM   #7
QuadraTokn
Registered User
1930 WJ 
 
Join Date: Dec 2006
Location: Chicago, IL
Posts: 5,047
yes, your 4.0 came w/ 2.25" piping. remember 2.5" is the optimal exhaust size for you. so if your putting in a turndown you can just go w/ 2.5" with a 2.25-2.5" adapter, and you can just get center inlet/outlet because it doesnt matter w/ a turndown.

when i first start up my car and more so when its cold, i seem to smell a little gas, idk if thats b/c of the turndowmn
QuadraTokn is offline   Reply With Quote
Unread 12-08-2007, 01:18 AM   #8
Bama_WJ
Web Wheeler
 
Bama_WJ's Avatar
2001 WJ 
 
Join Date: Sep 2007
Location: Owens Cross Roads, AL
Posts: 3,766
Yea, you'll get more interior noise with the turndown. Especially around 1500-2000 rpm. My 50 series sounds decent with the turndown and I haven't had a problem with gases getting inside the car. A turndown is nice cause is cheap to put on and you don't have to worry about keeping a nice tip clean and polished.

Just FYI, heres a video with my 50 series on my 4.0. I think it sounds better now than in the video cause its had time to "break in".

Jeep 4.0 with 50 Series Flowmaster
__________________
Daniel
1 Ton WJ Build In Progress

The Daily: 2011 Chevy Cruze Eco - Trifecta tuned and 37+ MPG

Wife's Jeep: 2006 WK Overland - OME HD Lift, 265/70/17 BFG AT's, 1.25" SpiderTrax wheel spacers, 3" Gibson Cat-Back

North Alabama Jeep
42RE Vent Mod - Seal your transmission!
YouTube. - My Video Channel
Facebook - Wheeling Pictures/Videos
The Jeep Wave. Bringing it back.
Bama_WJ is offline   Reply With Quote
Reply
Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.