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Unread 07-10-2010, 10:45 PM   #1
RED-85-Z51
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Whats a good muffler for a ZJ?

I ran a Thrush Chambered welded muffler on my Jeep SJ and liked the sound...

But I want something different on the ZJ.

Im getting a new Cat from NAPA, and they offer a catback complete system from like Dynomax or MAganflow...its affordable, but Im not sure if it sounds good.

Im thinking Flowmaster Series 44Delta would sound good...but maybe too loud.

Anyone tried the kit from NAPA?

What is everyone else running on a 5.2L ZJ?

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Unread 07-10-2010, 10:48 PM   #2
Jeeeeepster
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Magnaflow high flow cat converter and flomaster orginal 40 series on my 5.2. It sounds awsome but it may be a little to loud for some people.
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Unread 07-10-2010, 11:01 PM   #3
WillMcD
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Iv got a muffler delete with stock cat on my wj i have vids on my build thread and it is loud but sounds good IMO. But if you dont want it to loud I would recommend a flowmaster 70.
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Unread 07-10-2010, 11:16 PM   #4
RED-85-Z51
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I ran dual flowmasters 40's on my 67 Tbird, but that was a BB Ford...they sounded really mellow, not loud at all. Then I hear them on a truck and they are obnoxious.

Ill probably end up going with a Thrush 17655 Welded 2 hamber muffler and a new tailpipe assembly, and the new cat...I know it wont be loud enough though.
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Unread 07-10-2010, 11:42 PM   #5
freakinheep89
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summit racing has a full cat back exhaust kit for a ZJ V8, its a complete kit including tubing starting at the Y-pipe, and a welded turbo style flow through muffler, sounds great on mine and a noticeable power increase and they cost $179, mine was 199.77 shipped bolts right up with clamps, got em welded at a local shop for 30 bucks
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[SIZE="1"][B]95 ZJ 5.2[/B]- D30/XJ shafts/D35 Yukon alloys,249, 2"BB, 30x9.5"Wildcat EXT,lots of motor mods, rancho shocks & stabilizer.[/SIZE]

[QUOTE=slayercr23;12630497]How would i go about Stroking it?[/QUOTE]
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Unread 07-10-2010, 11:49 PM   #6
RED-85-Z51
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Quote:
Originally Posted by freakinheep89 View Post
summit racing has a full cat back exhaust kit for a ZJ V8, its a complete kit including tubing starting at the Y-pipe, and a welded turbo style flow through muffler, sounds great on mine and a noticeable power increase and they cost $179, mine was 199.77 shipped bolts right up with clamps, got em welded at a local shop for 30 bucks
Its the same kit that napa sells.

I can get it for like 108 dollars. But you say it sounds pretty good?
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Unread 07-10-2010, 11:51 PM   #7
freakinheep89
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no, napa dont sell this one, not talkin bout the dynomax, this is summit's brand, and it sounds really good. well worth the money
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[SIZE="1"][B]95 ZJ 5.2[/B]- D30/XJ shafts/D35 Yukon alloys,249, 2"BB, 30x9.5"Wildcat EXT,lots of motor mods, rancho shocks & stabilizer.[/SIZE]

[QUOTE=slayercr23;12630497]How would i go about Stroking it?[/QUOTE]
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Unread 07-11-2010, 08:18 AM   #8
Howiedooit
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many people have posted their before and after exhaust clips on you tube. you'll get an idea of what a variety of different mufflers, bottles, and straight pipes sound like. flowmaster 40 would be my vote
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Unread 07-11-2010, 08:22 AM   #9
Howiedooit
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YouTube - Jeep Grand Cherokee Flowmaster 40
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Unread 07-11-2010, 08:28 AM   #10
RED-85-Z51
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Quote:
Originally Posted by Howiedooit View Post
haha, the ending is pretty funny...the wife saying "Are you happy"?

Based on that, a Series 40 would be too loud for me, seeing as it would be my Daily Driver.
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Unread 07-11-2010, 08:30 AM   #11
Howiedooit
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YouTube - jeep grand cherokee zj 5.2 flowmaster super 44
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Unread 07-11-2010, 08:30 AM   #12
RED-85-Z51
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Quote:
Originally Posted by freakinheep89 View Post
no, napa dont sell this one, not talkin bout the dynomax, this is summit's brand, and it sounds really good. well worth the money
Must be a kit that is not available for a 93, because a summit search brings up Dynomax Performance 17403 - Dynomax Super Turbo Exhaust Systems - Overview - SummitRacing.com

as the only kit with a pipe and a muffler.
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Unread 07-11-2010, 08:32 AM   #13
Howiedooit
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YouTube - Jeep ZJ Grand Cherokee V8 5.2 Exhaust 3"
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Unread 07-11-2010, 08:32 AM   #14
Howiedooit
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last one is a 50 series
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Unread 07-11-2010, 01:03 PM   #15
freakinheep89
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the applications say 93-98zj, but a 93-95 are exactly the same so it will work,search under a 95
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[SIZE="1"][B]95 ZJ 5.2[/B]- D30/XJ shafts/D35 Yukon alloys,249, 2"BB, 30x9.5"Wildcat EXT,lots of motor mods, rancho shocks & stabilizer.[/SIZE]

[QUOTE=slayercr23;12630497]How would i go about Stroking it?[/QUOTE]
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