4.0 glasspack
Junior Member
Joined: May 2010
Posts: 71
Likes: 0
From: Lancaster, PA (stationed at Fort Hood, TX)
Year: 1999
Model: Cherokee
Engine: 4.0L I6
I just installed a thrush glasspack, 18" baffle and I like it so far. I attached it right after the stock cat, and do not have a tailpipe yet, just a muffler tip. At lower RPMs it sounds great and deep, but with higher revving I noticed a bit of "riceyness". I know it will get a bit more quiet when I add a tailpipe, but overall I think they are a good inexpensive upgrade. I'll be upgrading mine down the road to a flowmaster super 44, if you have the bucks, I'd say go with that.
CF Veteran
Joined: Apr 2011
Posts: 4,825
Likes: 2
From: Indianapolis
Year: '99 and '91
Model: Cherokee
I got a thrush glasspack on my 91 with a full tailpipe. I like how it keeps everything lined up better than with a offset muffler (where the outlets off to the left) it takes a little finesse to fit in there but its solid.
It has a nice rumble at idle. And is surprisingly quiet when you get moving. I wouldn't call it ricerish at all. It performs a lot better than the cheaper "performance" mufflers (like cherrybomb) IMO
It has a nice rumble at idle. And is surprisingly quiet when you get moving. I wouldn't call it ricerish at all. It performs a lot better than the cheaper "performance" mufflers (like cherrybomb) IMO
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I have a Magnaflow muffler on mine. Not sure what kind exactly. Cost a $100 bill. I wanted a flowmaster but he didn't have the center/offset in stock. I think my Magnaflow sounds pretty good for a 6 cylinder.
Thread Starter
CF Veteran
Joined: Sep 2011
Posts: 10,447
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From: Frederick, MD
Year: 1989
Model: Cherokee
Engine: 4.0
Originally Posted by Jbeaujean28
I have one and I like it but, I might swap mine out for a manga flow 40 series, is it a cherrybomb glasspack or no?
CF Veteran
Joined: Apr 2011
Posts: 4,825
Likes: 2
From: Indianapolis
Year: '99 and '91
Model: Cherokee
Originally Posted by my89xj
I'm getting it today is has surface rust. But it's still good I'll post pics soon.


