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3.5" Mufflex Installed

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Old Dec 24, 2005 | 02:18 PM
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1989GTATransAm's Avatar
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
3.5" Mufflex Installed

Here are a couple of pictures of my 3.5" Mufflex system with the Magnaflow muffler. This is with the single tail pipe tucked up. It is not that noticeable to the causual observer. Had to stoop somewhat to get most of the tailpipe.
Attached Thumbnails 3.5" Mufflex Installed-gta-exhaust-1.jpg  

Last edited by 1989GTATransAm; Dec 24, 2005 at 02:21 PM.
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Old Dec 24, 2005 | 02:19 PM
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1989GTATransAm's Avatar
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
Here is another picture.
Attached Thumbnails 3.5" Mufflex Installed-gta-exhaust-2.jpg  
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Old Dec 24, 2005 | 02:23 PM
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From: Kansas City
Car: 1991 Trans Am
Engine: L98
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wow that looks nice. i like how theres no gaudy looking tips sticking out. hows it sound? loud? hows ground clearence?
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Old Dec 24, 2005 | 03:04 PM
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1989GTATransAm's Avatar
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
Not loud at all. Probably close to what the factory is until you nail it. I can drive down the street with the windows down and have a normal conversation without raising my voice.

I do not recommend this muffler to someone who wants a loud exhaust. Plenty of ground clearance. Again probably close to the factory ground clearance.

Dyno Don did the installation and had no problems with it. He does custom exhaust systems anyways so it was a piece of cake for him.

Last edited by 1989GTATransAm; Dec 24, 2005 at 03:08 PM.
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Old Dec 24, 2005 | 03:27 PM
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From: Kansas City
Car: 1991 Trans Am
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care to say how much the whole setup (minus instal) set you back? while i like how my bassani sounds, its a 3 inch setup and ill need a 4 inch setup sometime in the near future to go along with a 4 inch downpipe. plus i dont like tips sticking out nor a very loud exhaust. so this may be right up my ally. thanks for posting this.
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Old Dec 24, 2005 | 03:57 PM
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
I bought the 3.5" Mufflex cat back system in a group sale. It was around $400 with the Spintech muffler. After I received the Mufflex I learned that Magnaflow was going to make a 3.5" muffler that looked exactly like what I wanted. So I placed and order for it through Summit. Cost was around $115. Now you can get the Mufflex catback with the Magnaflow muffler as Mufflex is also a Magnaflow dealer.
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Old Dec 24, 2005 | 07:55 PM
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From: Evansville,IN,USA
Car: 89' T/A, 00' Firehawk
Engine: 406 Roller
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Axle/Gears: 3.23 Posi
Originally posted by 1989GTATransAm
I bought the 3.5" Mufflex cat back system in a group sale. It was around $400 with the Spintech muffler. After I received the Mufflex I learned that Magnaflow was going to make a 3.5" muffler that looked exactly like what I wanted. So I placed and order for it through Summit. Cost was around $115. Now you can get the Mufflex catback with the Magnaflow muffler as Mufflex is also a Magnaflow dealer.
How does the magnaflow sound?
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