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4 bolt cat flange w/ 3 inch intermediate pipe?

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Old Jun 20, 2005 | 12:30 PM
  #1  
3.8TransAM's Avatar
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From: Schererville , IN
Car: 91 GTA, 91 Formula, 89 TTA
Engine: all 225+ RWHP
Transmission: all OD
Axle/Gears: Always the good ones
4 bolt cat flange w/ 3 inch intermediate pipe?

Who still makes an exhaust that is a dead on bolt up to the factory 4 bolt flanged cats and has an true 3 inch intermediate pipe diameter?

Trying to figure out if the hooker or edelbrock will work but cant verify intermediate pipe diameter and availability of bolting up to the 4 bolt flange.

Has to be 4 bolt flange and 3 inch intermeditate(have the cat and the cutout)

Going onto the TTA, lets just say the stcker is a restriction just a little bit now.

thanks
Jeremy
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Old Jun 20, 2005 | 04:30 PM
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From: Grand Rapids, MI
Car: 1985 IROC-Z
Engine: Magnacharged LS1
Transmission: T56
Axle/Gears: Ford 9" 4:11's
The hooker areochamber system I bought for my car fit my 4 bolt cat flange just like stock...however, this was about 7 years ago and I do not know if they still offer it for those applications.
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Old Jun 21, 2005 | 12:18 AM
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From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Yes, Hooker still does... I bought that same system not even 2 mos ago.
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Old Jun 21, 2005 | 02:46 AM
  #4  
3.8TransAM's Avatar
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From: Schererville , IN
Car: 91 GTA, 91 Formula, 89 TTA
Engine: all 225+ RWHP
Transmission: all OD
Axle/Gears: Always the good ones
U verify the true 3 inch from the catback for the intermediate pipe?

And second question, are the hangers the same on the exhaust?

I know at the cat will be fine but the rear for the tailpipes?

later
Jeremy
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Old Jun 21, 2005 | 06:47 AM
  #5  
406TPI's Avatar
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From: Grand Rapids, MI
Car: 1985 IROC-Z
Engine: Magnacharged LS1
Transmission: T56
Axle/Gears: Ford 9" 4:11's
Mine fit like a glove.....all hangers were correct and yes it is a 3 inch pipe.
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Old Jun 21, 2005 | 01:32 PM
  #6  
3.8TransAM's Avatar
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From: Schererville , IN
Car: 91 GTA, 91 Formula, 89 TTA
Engine: all 225+ RWHP
Transmission: all OD
Axle/Gears: Always the good ones
Hmmm its noticeably chepaer than all the other ones?

Does it come wth the tips or not?

The steel/chrome dual on each side?

later
Jeremy
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Old Jun 21, 2005 | 02:41 PM
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406TPI's Avatar
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From: Grand Rapids, MI
Car: 1985 IROC-Z
Engine: Magnacharged LS1
Transmission: T56
Axle/Gears: Ford 9" 4:11's
Yeah, I think I remember mine was cheaper than the other kits too. Yup, it comes with the huge 3 inch dual chrome tips. It really is a nice kit for the money. I discarded the tips for more stealthy turn-downs....the big chrome thing is not my style
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Old Jun 21, 2005 | 02:46 PM
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406TPI's Avatar
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From: Grand Rapids, MI
Car: 1985 IROC-Z
Engine: Magnacharged LS1
Transmission: T56
Axle/Gears: Ford 9" 4:11's
Here is a pic of what the tips look like that come with the kit.
Attached Thumbnails 4 bolt cat flange w/ 3 inch intermediate pipe?-000_0243s.jpg  
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Old Jun 21, 2005 | 04:18 PM
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From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Originally posted by 3.8TransAM
U verify the true 3 inch from the catback for the intermediate pipe?

And second question, are the hangers the same on the exhaust?

I know at the cat will be fine but the rear for the tailpipes?

later
Jeremy
It is 3" all the way from the 4-bolt flange to the muffler. Its got dual 2.5" tail pipes.

The only place it might not be 'true' 3" is right at the flange, where it is ovalized somewhat. Its not too bad though.

For the record, the system I ordered was for the '83-85 L69 (5.0 HO) cars. For some reason, its alot cheaper than the systems Hooker makes for the TPI cars.... cheaper by like $50 !!
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Old Jun 21, 2005 | 04:20 PM
  #10  
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Joined: Oct 2002
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From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
This is the system I have, although its not actually a pic of mine. I found it here a few months ago.

The name of the pic (16822.jpg) is the Hooker part number.
Attached Thumbnails 4 bolt cat flange w/ 3 inch intermediate pipe?-16822.jpg  
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Old Jun 23, 2005 | 11:01 AM
  #11  
3.8TransAM's Avatar
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Joined: Feb 2000
Posts: 7,015
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From: Schererville , IN
Car: 91 GTA, 91 Formula, 89 TTA
Engine: all 225+ RWHP
Transmission: all OD
Axle/Gears: Always the good ones
thanks guys,

I appreciate that alot.

I'm goign to be getting the 16823 system. Hookups will be right and comes with tips that once I angle cut them, will mimic the originals on the tta.

Think the difference in price from the 16822 and 16823 is the simple matter of one has tips, and the other one doesnt.

later
Jeremy
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