What size glass pack?
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Freshman User
Joined: Jan 2004
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From: Colorado
What size glass pack?
I want to order a glass pack for my 89 Bronco, and have two questions.
1) The muffler ranges in sizes from 18" to 30", which do I need?
2) The in/out diameter ranges from 2"- 3",which will fit on a stock 89?
1) The muffler ranges in sizes from 18" to 30", which do I need?
2) The in/out diameter ranges from 2"- 3",which will fit on a stock 89?
Elder User
Joined: Nov 2003
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From: Pocahontas, AR
3" will fit. The length determines how deep it is. The longer the glasspack the deeper more mellow sound u get. The shorter the glasspack the louder crackling sound u get. I would go with a 30" 3" glasspack, but thats just me.
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From: AK
Well, coming off the cat. converter the size is gonna be 2.25"
If you have both cats still, I'd go with a 12" or 18" pack, anything else will be almost unnoticable over stock. If you don't have cats, then definitely a 30".
If you have both cats still, I'd go with a 12" or 18" pack, anything else will be almost unnoticable over stock. If you don't have cats, then definitely a 30".
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Freshman User
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From: Colorado
thanks guys, does a glass pack and a chrome tip(still has a cat) offer a good sound? Or will it sound stock?
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Freshman User
Joined: Jan 2004
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From: Colorado
I am also looking at a set up that gives duals in the back from the cat. The two slash cut tips replace the muffler and are made by Heartthrob(JC Whitney catalog). How do these sound?
Postmaster
Joined: Dec 2003
Posts: 2,659
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From: S/C Texas
have been asking about those same heartthrob muffler tips. Onlt one person has used them. He says it sounded great, his freinds say it sounded terrible. So I shy'd away and going straight dual pipes off the cats.
Posting Guru
Joined: May 2002
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From: AK
Ya know you can go with the Hearthrob dual system and just replace the muffler tips with regular ones... I think the kit only costs like 180-220 depending on what tips you get. Not bad for piping and you can install it yourself.
Laughing Gas
Joined: Sep 2003
Posts: 890
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From: small town, north dakota
i have one cat on my 95 f150, and it had a 30" glasspack, and dual 4x18" tips. it sounded stock. had a little rumble at idle, but on the throttle it was really quiet. now i am gunna replace the glasspack with a FM 40 si/do, and 3.5x18" tips.
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