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New y-pipe and exhaust with SLP headers inside

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Old Jan 28, 2007 | 06:28 AM
  #1  
gta324's Avatar
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From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
New y-pipe and exhaust with SLP headers inside * soundclip *

It started with I wanted a new muffler that was little less sound from...

Then it became a new exhaust complete from the SLP collector, the old pipes where 2.25" the new ones will be 2.5". Will wait with longtubes......

For the first time I will remove my cats to see how much restriction those (had 2) made, it will be on when passing emission offcause.....

All that is left of the old exhaust



New Y-pipe collector is made from a 3.5" pipe and a piece of 2.5" pipe





The new 2.5" pipes from the collector is welded together where it should be attached to the 3.5" Y-pipe.



Y-pipe attached



next part (cat-delete)



new muffler is taking its place



a sharp 3.5" 90* is made to fit the pipes........



.....to be continued

Last edited by gta324; Apr 24, 2007 at 12:00 AM.
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Old Jan 28, 2007 | 01:27 PM
  #2  
Gramps's Avatar
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From: Victoria BC Canada
Car: 87 Camaro IROC
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 3.23
nice work ya go there, you gonna leave it bare stainless or u gonna polish it or what?
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Old Jan 29, 2007 | 12:07 AM
  #3  
gta324's Avatar
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From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
thx

I dont think I will polish it..........will see when its all done.

Trying to decide how to end the exhaust ( the tip)............

/N.
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Old Jan 29, 2007 | 12:09 AM
  #4  
92RS(real slow)'s Avatar
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From: Osceola Indiana
Car: 92 RS(sold) 1989 IROC-Z
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: ones that turn
looking good man I wish I could weld
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Old Jan 29, 2007 | 04:45 AM
  #5  
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From: Apple Valley, MN
Car: 92 Z28 convertible
Engine: Miniram 383
Transmission: T-56
Axle/Gears: 4.10 stk 10 bolt
NICE, make me one!!!!
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Old Feb 4, 2007 | 10:43 AM
  #6  
gta324's Avatar
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From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
Next piece....

Its nice when you can just melt the pipes together with TIG, to bad I wasent so steady on my hand before, now I want to remake every weld





/N.
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Old Feb 4, 2007 | 05:29 PM
  #7  
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From: Evansville,IN,USA
Car: 89' T/A, 00' Firehawk
Engine: 406 Roller
Transmission: TH700R4 w/2800 stall
Axle/Gears: 3.23 Posi
Thats exactly what I am wanting to do with my SLP's. Well have deadbird do for me, he's a fabricatin' fool. Are you leaving the factory SLP collector? I think I am going to have deadbird cut them off and put a ball/flange type collector on it, like what Ford uses and LS1's i think. I would like to see more pics if you have them. Do you think there is enough room for a 3in y pipe? Thanks. I am going to start another thread about that so I don't high jack yours. Looks good!
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Old Feb 5, 2007 | 12:05 AM
  #8  
gta324's Avatar
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From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
I reused the slp connectors.

3" can be done but it will require to lower the pipe between the frame and oilpan so the car is going to be lower but I'm sure it can be done.

A friend drives 9.44 with SLP shorties and 2.5" collectors in a full weight camaro.....

Will post more picture..........
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Old Feb 11, 2007 | 03:20 PM
  #9  
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From: Evansville,IN,USA
Car: 89' T/A, 00' Firehawk
Engine: 406 Roller
Transmission: TH700R4 w/2800 stall
Axle/Gears: 3.23 Posi
anymore pics?
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Old Feb 19, 2007 | 08:15 AM
  #10  
gta324's Avatar
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From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
The rest........







/N.
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Old Feb 19, 2007 | 04:23 PM
  #11  
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From: Highwood, IL
Car: 1983 trans am
Engine: Vortec 350 w/ a comp cam
Transmission: B&Mth350 2800holeshot
Axle/Gears: 10bolt 3.23's
looks sweet! hows it sound??!!
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Old Feb 19, 2007 | 11:39 PM
  #12  
gta324's Avatar
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From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
Have not started it yet... Still have som other work to be done before startup. Soundclip will be posted ASAP.

/N.
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Old Feb 20, 2007 | 12:34 AM
  #13  
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From: any clime or place...
Car: 1987 Camaro SC, 1999 Z28
Engine: GMPP 350HO, LS1
Transmission: Built 700r4/EDGE 3200, T56
Axle/Gears: 3.42 Eaton 7.625, 3.42 Zexel Torsen
wow, what talent. wish i had the time to learn to weld like that.

the tail pipe looks great, all plain and low key. don't get too fancy!
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Old Feb 20, 2007 | 08:53 AM
  #14  
gta324's Avatar
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From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt


The first welds dont look that good

Will post some more pictures soon.

Will see how the tailpipe looks when the car is on the the ground.....

/N.
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Old Apr 23, 2007 | 02:23 PM
  #15  
gta324's Avatar
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From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
Re: New y-pipe and exhaust with SLP headers inside

Started it today...

Cold start

http://www.youtube.com/watch?v=GMWfjD-l280

It cant complain that it doesnt get enough fuel when I get some gas

Procharger is not mounted.
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