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Im confused about my exhaust

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Old 10-16-2001, 01:45 PM
  #1  
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Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
Im confused about my exhaust

Heres the page

http://www.jegs.com/cgi-bin/ncommerc...963&prmenbr=76

Heres what I got (Was on car when I got it )
389-43083 1986-99 Camaro/Firebird: 80 Series, 3''In/2.5 Dual Out - 80 Series

Now is this JUST the muffler? Or is it a cat back?

Is that the American Thunder? Im confused.


Thanks guys!

------------------
1988 Jet Black IROC
5.7L W/ 64000 miles
Flowmaster Exhaust
Fully Loaded
------------------

My IROC In Readers Rides
My IROC
Old 10-16-2001, 02:44 PM
  #2  
Tas
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catback for $80? Come on now . Thats just the muffler.

------------------
-Tas
'89 Formula WS.6

Got Beach?


[This message has been edited by Tas (edited October 16, 2001).]
Old 10-16-2001, 03:27 PM
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Car: Red 87 IROC-Z28 T-Top
Engine: 5.7 Tuned Port Injection
Transmission: 700R4 Auto
Axle/Gears: BW 9-Bolt 3.27
Thats just the muffler.

------------------
89 RS

STILL Looking For:
An 87 IROC-Z28 350 TPI
Old 10-16-2001, 08:25 PM
  #4  
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Join Date: Jul 2001
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Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
Ok thanks guys - I figured it was just the muffler.

Question #2. Whats a cat back? 3 inch pipe from cat to muffler? I have a 3 inch pipe from cat to muffler. So maybe I do have a cat back?

------------------
1988 Jet Black IROC
5.7L W/ 64000 miles
Flowmaster Exhaust
Fully Loaded
------------------

My IROC In Readers Rides
My IROC

[This message has been edited by IROCThe5.7L (edited October 16, 2001).]
Old 10-16-2001, 10:25 PM
  #5  
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Car: RS
Engine: 305
Transmission: 4L60
Axle/Gears: 3.42
If I'm not mistaken all 5.7s came with 3" over the axle piping, standard bents though. if It is madrel bending it is after market.

------------------
late model 91 rs, fully loaded, auto, t-tops, red leather, paint- gm red and yellow blend (light red), custom painted 16" Camaro rims
305 tbi flat base 14"x3" with K&N, hypertech chip, accel super stock plug wires, only use full synthetic oil and delco filter, 2 1/2" cat delete pipe, Edelbrock 3" cat-back
MTX sub and amp, Bose all around
vic_v8@yahoo.com
street kills: New v-6 stang, 96 v6 camaro, totally killed '86 SC Camaro (305), 91 z 28 with 305
15.854@87.57 (I think I could have it 15.5 with good tires and two more runs)
next month: rest of ultimate tbi
Old 10-16-2001, 11:03 PM
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Tas
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largest factory is 2.75" not 3"

------------------
-Tas
'89 Formula WS.6

Got Beach?
Old 10-16-2001, 11:04 PM
  #7  
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Join Date: Jul 2001
Location: Buffalo, NY
Posts: 5,196
Received 59 Likes on 40 Posts
Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
<font face="Verdana, Arial" size="2">Originally posted by Tas:
largest factory is 2.75" not 3"

</font>

So I have a catback



------------------
1988 Jet Black IROC
5.7L W/ 64000 miles
Flowmaster Exhaust
Fully Loaded
------------------

My IROC In Readers Rides
My IROC
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