Quieting the JT 3" exhaust - The Saab Link Forums

Go Back   The Saab Link Forums > Saab Classic 900 Forum '78-'93 > Customizing Your Classic 900

Customizing Your Classic 900 This forum contains all CUSTOMIZING related Q&A's, such as Lights (taillights, headlights, turn indicators, clear corners, etc), Interior and Exterior modifications, Wiring, Gauges and more.

SaabLink.net is the premier Saab Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old 03-02-2008, 07:10 PM   #1
Elder
 
90SPG's Avatar
 
Join Date: Oct 2005
Location: Lancaster, PA
Posts: 3,148
Send a message via AIM to 90SPG
Quieting the JT 3" exhaust

So I have the 1 muffler version of this system and I would like it to be a little less wild on the highway and I would like to get rid of some of the inside drone. Has anyone ever added a 2nd muffler or replaced the standard JT one with something more quiet? A 2.5" would be a great option but I just cant get over spending that much for a new cat back.

Should I just turn in my man card now?
__________________
'90 900 SPG (RIP rust)
'86 900 SPG (DD)
'86 900S
"A car with an image so immaculate it can hold confession and communion."
90SPG is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-02-2008, 07:20 PM   #2
Moderator
Elder
 
DeLorean's Avatar
 
Join Date: Nov 2003
Location: In a compound on a hill
Posts: 7,595
Send a message via AIM to DeLorean
I actually thought the 1 muffler JT system was pretty quiet. well... the exhaust noise was, it took me about... 6-10 tries to get it to sit right so I didn't bang into stuff left and right.
DeLorean is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-02-2008, 07:33 PM   #3
Elder
 
90SPG's Avatar
 
Join Date: Oct 2005
Location: Lancaster, PA
Posts: 3,148
Send a message via AIM to 90SPG
If you drive it conservatively it can be alright but it just pops and backfires far too much for my liking. I want to find a way to hear more the exhaust than just loud noise. But you're right it does bang the suspension waaay too much, a 2.5" might not be such a bad solution for all these problems, I guess I need to get practicing with the welder.
__________________
'90 900 SPG (RIP rust)
'86 900 SPG (DD)
'86 900S
"A car with an image so immaculate it can hold confession and communion."
90SPG is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
 
Old 03-02-2008, 07:39 PM   #4
Moderator
Elder
 
DeLorean's Avatar
 
Join Date: Nov 2003
Location: In a compound on a hill
Posts: 7,595
Send a message via AIM to DeLorean
well if I were doing things again, I'd use either a custom or JT 3" downpipe, and run that to a 2.5" pipe with a small glass-pack muffler. The full 3" exhaust is a hassle to get just right and unnecessary. Rather than going full custom 3"-2.5" ($$$ if you don't do it yourself) you could probably use the stock turbo exhaust attached to the JT 3" downpipe. your muffler choice could be basically anything that fits on the stock location, from a stock muffler to NO muffler!
DeLorean is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-02-2008, 07:39 PM   #5
SAAB Road Master
 
Join Date: Nov 2006
Posts: 380
I bought the JT exhaust with the 2 mufflers and it is perfect. I added the cat separately. Call Nick at GS and see if he can order you the second muffler from JT.
__________________
MickeyM
2006 Aero convertible
2000 9-3 silver convert (for sale)
mickeym is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-02-2008, 07:42 PM   #6
Elder
 
amish_geek's Avatar
 
Join Date: Sep 2006
Location: Yumping a Swedish Model
Posts: 4,098
Send a message via AIM to amish_geek Send a message via MSN to amish_geek
Are you running with or without a cat currently?


I added a cat to my exhaust and I lost all of the pops and unnecessary noises.. and the exhaust tone lost about 10db in volume.
__________________
DVNO, Four Capital Letters, Written in Gold
amish_geek is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-02-2008, 07:52 PM   #7
Elder
 
90SPG's Avatar
 
Join Date: Oct 2005
Location: Lancaster, PA
Posts: 3,148
Send a message via AIM to 90SPG
yeah it has a cat on it right now, I guess I'm just being a wimp about the noise.
__________________
'90 900 SPG (RIP rust)
'86 900 SPG (DD)
'86 900S
"A car with an image so immaculate it can hold confession and communion."
90SPG is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-02-2008, 08:11 PM   #8
Deez Nutz
Site ModeratorElder
 
Palmer's Avatar
 
Join Date: Oct 2005
Location: Cheese Country
Posts: 15,679
Send a message via AIM to Palmer
I feel the same way about the JT in my 9-3.


I'll be keeping an eye on this...
__________________
S55/LC100/KL
Palmer is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-03-2008, 03:09 AM   #9
Elder
 
mcrowley's Avatar
 
Join Date: Oct 2005
Location: Albany, NY
Posts: 12,348
Send a message via AIM to mcrowley
The dual muffler/no cat setup on my 9000 doesn't pop or crackle much at all and its not loud at all on the highway (or inside the car) unless you're really on the throttle.
__________________
95 9000 Aero
96 900 SE
06 9-5

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

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
mcrowley is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-03-2008, 06:18 AM   #10
Nick Taliaferro
Elder
 
GenuineSaab's Avatar
 
Join Date: Feb 2004
Location: Springfield, MO USA
Posts: 3,232
Send a message via MSN to GenuineSaab Send a message via Skype™ to GenuineSaab
The cat and center muffler fix the popping.

Might be something in the throttle switch too, maybe too less decel fuel cut.
__________________
Nicholas Taliaferro

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

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

2.0 GOOSE 500whp + 8500rpm = 11.06 @125 E85
Viggen 439whp / 447tq 12.43 @114 on Gt2871.64, (Now 511whp Gt3076)
Nordic E85 9-3 SS Aero 320hp / 350ftlbs
GenuineSaab is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-03-2008, 06:35 AM   #11
Elder
 
Legit's Avatar
 
Join Date: Jun 2007
Location: St. Paul, MN
Posts: 2,983
So the 2 muffler no cat / race cat system would be the way to go for a clean sound?
__________________
2002 Viggen Convertible
Legit is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-03-2008, 08:01 AM   #12
Elder
 
90SPG's Avatar
 
Join Date: Oct 2005
Location: Lancaster, PA
Posts: 3,148
Send a message via AIM to 90SPG
Well I think I am going to order some 2.5" pipes and try to copy the bends in the 3" system when the time comes. Ideally I'd like to spend less than $100 on it which seems doable and hopefully I will have a quiet system that isn't constantly hitting the rear spring on corners.
__________________
'90 900 SPG (RIP rust)
'86 900 SPG (DD)
'86 900S
"A car with an image so immaculate it can hold confession and communion."
90SPG is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-03-2008, 02:11 PM   #13
Elder
 
spgproject's Avatar
 
Join Date: Aug 2004
Location: harrisburg, PA
Posts: 3,388
Send a message via AIM to spgproject
here's an idea phil - why don't you just put a stock exhaust on the spg and put the jt system on the notchback?
__________________
"The car is the closest thing we will ever create to something that is alive"
-Sir William Lyons
spgproject is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-03-2008, 07:35 PM   #14
Elder
 
90SPG's Avatar
 
Join Date: Oct 2005
Location: Lancaster, PA
Posts: 3,148
Send a message via AIM to 90SPG
because I threw it away like an idiot.

edit:I should clarify, I don't have the stock system from the SPG anymore and the notch is exhaust-less, but I guess they are pretty cheap even new. The JT cat-back will probably end up on the notchback since I already have the DP.
__________________
'90 900 SPG (RIP rust)
'86 900 SPG (DD)
'86 900S
"A car with an image so immaculate it can hold confession and communion."

Last edited by 90SPG; 03-03-2008 at 08:52 PM.
90SPG is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-04-2008, 05:26 AM   #15
Elder
 
amish_geek's Avatar
 
Join Date: Sep 2006
Location: Yumping a Swedish Model
Posts: 4,098
Send a message via AIM to amish_geek Send a message via MSN to amish_geek
Wanna trade, straight up, for the 2.5" exhaust off my SPG?

It's just got a Cat + Thrush Turbo Glasspack (the red "cherrybomb" one). If you were at SOC, you probably heard it
__________________
DVNO, Four Capital Letters, Written in Gold
amish_geek is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-04-2008, 07:20 AM   #16
JK
Elder
 
JK's Avatar
 
Join Date: Sep 2005
Location: Land of 10,000 L-holes
Posts: 13,686
I love the 2.5" thrush (or thrush-style) glasspack sound on a classic 900.

That's what my exhaust is, but with a very leaky downpipe. Its not even loud with a $Quarter$ sized hole in the downpipe, but the turbo wine is almost driving me nuts...almost.
__________________
always a SAAB guy at heart
JK is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-04-2008, 07:25 AM   #17
Elder
 
90SPG's Avatar
 
Join Date: Oct 2005
Location: Lancaster, PA
Posts: 3,148
Send a message via AIM to 90SPG
thats tempting, my friend has a 2.5" exhaust with a glasspack on it and is a great combination of sound and noise, it would be nice if you were closer so we didn't have to ship them. I think I might try making a new one first but if that doesn't go so well maybe we can switch them at Carlisle if youre still coming.
__________________
'90 900 SPG (RIP rust)
'86 900 SPG (DD)
'86 900S
"A car with an image so immaculate it can hold confession and communion."
90SPG is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-04-2008, 08:42 AM   #18
Live, eat, and sleep by TSL
 
Bullseye's Avatar
 
Join Date: May 2006
Location: Currently in the bunker
Posts: 1,643
Quote:
Originally Posted by 90SPG View Post
Should I just turn in my man card now?
Yes. You can reclaim it by purchasing your buddies a beverage at the next Saab club meeting.
Bullseye is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-04-2008, 09:03 AM   #19
Elder
 
90SPG's Avatar
 
Join Date: Oct 2005
Location: Lancaster, PA
Posts: 3,148
Send a message via AIM to 90SPG
__________________
'90 900 SPG (RIP rust)
'86 900 SPG (DD)
'86 900S
"A car with an image so immaculate it can hold confession and communion."
90SPG is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 05-11-2011, 11:19 PM   #20
SAAB Road Master
 
93viggen's Avatar
 
Join Date: May 2011
Location: California.
Posts: 349
I see that you do not like the sound of the jt 3"? I was curious, should I go with the abbott racing 2.5" with a cat, or a jt3" with a cat? I want it to be the quieter of the two..Also I have heard things about the cat being pointless because it blows it out or something, sorry for the inexperienced language/terms. I am new to this stuff. Thanks.
__________________
Using waste to make haste!
93viggen is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the The Saab Link Forums 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:
Vehicle Info.
Enter your vehicle information (year, model, mods)
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools

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 On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 09:41 AM.


Powered by vBulletin® Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.5.2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
All content is copyright The Saab Link and it's original authors.


 

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.