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My LS1 exhaust setup

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Old Jan 5, 2012 | 10:20 PM
  #1  
daddy33's Avatar
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From: Cali
Car: '85 Camaro
Engine: LS1
Transmission: T56
Axle/Gears: 3.73
My LS1 exhaust setup

Well it feels good to have the car back on the road. I drove it back home today from the exhaust shop and I love the way it sounds. Gotta do a few maintenance things like bleed the brakes and so forth.
I wasn't able to get a video clip which I'll try and get one soon, but It does have a nice muscle sound to it


Here are some pics of the setup.

Hawks long-tubes with 3" collectors. Goes from the dual 3" into a flowmaster merge 3" into 4"



Made the 4" cutout dump out the side. After cutout it then goes into a 3" piping all the way out.



3" over the axle into a flowmaster 3"in/out and dumped at the rear.



Kinda bad pics, but shows the clearance. Its pretty tucked up which is nice, so I'm good to go.



My new license plate haha:
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Old Jan 5, 2012 | 10:38 PM
  #2  
UnstableAviator's Avatar
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Car: 1984 Camaro
Engine: LS1
Transmission: T56
Axle/Gears: Ford 9"/4.30
Re: My LS1 exhaust setup

Excellent! I have nearly the exact same setup (same y-pipe), but with a 3" QTP cutout. I don't have a whole lot of experience with various y-pipe, but I know mine has no weird rasp like I read a lot of people complaining about.

Anyway, looks great, and there will be absolutely no HP loss through that setup.
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Old Jan 6, 2012 | 01:20 AM
  #3  
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From: Jacksonville, AL
Car: 1985 Camaro
Engine: 305 ci
Transmission: 700r4
Re: My LS1 exhaust setup

What y pipe are you using?
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Old Jan 6, 2012 | 08:55 AM
  #4  
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From: Cali
Car: '85 Camaro
Engine: LS1
Transmission: T56
Axle/Gears: 3.73
Re: My LS1 exhaust setup

Originally Posted by motenkjr
What y pipe are you using?
It's a custom made one from the collectors to the flowmaster merge
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Old Jan 6, 2012 | 01:57 PM
  #5  
6SIX6's Avatar
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From: Mississauga,Ont,Canada
Car: 89 IROC
Engine: LSX 6.0 370, TU2 Cam, Fast intake
Transmission: T56 w/ lots of goodies
Axle/Gears: 8.8, Posi, 4.10, 31 Spline
Re: My LS1 exhaust setup

looks good man i hope to get mine made up next week to I can finally get my car tuned
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Old Jan 6, 2012 | 02:16 PM
  #6  
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From: Ft Knox KY
Re: My LS1 exhaust setup

Nice set up!
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Old Jan 6, 2012 | 04:20 PM
  #7  
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From: NE Pa
Car: 1989 Iroc-Z Convertible
Engine: 6.0 LQ4 LSX
Transmission: T56
Axle/Gears: Moser 12 bolt w/4.11s
Re: My LS1 exhaust setup

Looks good. I have the Hawks 3/4 w/ 3" collectors and similar set up as well. I have a long way to go before they get bolted and i open up the cut out though. GL
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Old Jan 6, 2012 | 05:12 PM
  #8  
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From: Shoreline East Haven, Connecticut
Car: '92 Z28
Engine: 350 TPI L98
Transmission: 700R4
Axle/Gears: 10 Bolt / 3.23
Re: My LS1 exhaust setup

Looking forward to the sound video clip.

Where did you get the cool 5.7L LS1 license plate frame?

Is it metal or chrome covered plastic?
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Old Jan 6, 2012 | 07:21 PM
  #9  
daddy33's Avatar
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Car: '85 Camaro
Engine: LS1
Transmission: T56
Axle/Gears: 3.73
Re: My LS1 exhaust setup

Thanks guys, I'll try and get a video clip this weekend.

The license plate was $15 shipped off eBay. It's a chrome plastic and looks pretty good when it's on.
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Old Jan 6, 2012 | 11:35 PM
  #10  
HP52TA's Avatar
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From: Calgary, Alberta, Canada
Car: 89 WS6 TransAm
Engine: LQ408
Transmission: T56 Magnum
Axle/Gears: Strange S60, 4.10s
Re: My LS1 exhaust setup

Originally Posted by daddy33
3" over the axle into a flowmaster 3"in/out and dumped at the rear.
That Looks Sweet!

Looking forward to some open and closed sound clips.
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Old Jan 7, 2012 | 06:43 AM
  #11  
85streetmachine's Avatar
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From: windsor, ontario
Car: 1985 iroc z
Engine: 6.0L coming
Transmission: 4L80E coming
Axle/Gears: 10 bolt 3.73
Re: My LS1 exhaust setup

Just a question, but why reduce from 4" after the cutout to single 3" again? Dual 3" has the same flow area as a single 4", so wouldnt it choke up the exhaust at that point?
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Old Jan 7, 2012 | 08:17 AM
  #12  
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Car: '85 Camaro
Engine: LS1
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Axle/Gears: 3.73
Re: My LS1 exhaust setup

Originally Posted by 85streetmachine
Just a question, but why reduce from 4" after the cutout to single 3" again? Dual 3" has the same flow area as a single 4", so wouldnt it choke up the exhaust at that point?
I used the 3" to help tame the noise and drive around the street. I'll eventually get an electric 4" cutout and just flip the switch when I want all my ponies
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Old Jan 16, 2012 | 11:01 PM
  #13  
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From: Cali
Car: '85 Camaro
Engine: LS1
Transmission: T56
Axle/Gears: 3.73
Re: My LS1 exhaust setup

Whoops... I forgot to post the video clips. Here is one with the full exhaust:



And here is one with no exhaust

http://www.youtube.com/watch?v=MSbWl...ature=youtu.be
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Old Jan 17, 2012 | 12:18 PM
  #14  
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From: MD
Car: 88 Iroc-z
Engine: ls1
Transmission: t56
Axle/Gears: 3.42
Re: My LS1 exhaust setup

Very nice and clean! Love the black on black to.. reminds me of my car for the rims.. how did you do them? They look very nice and mine are pretty faded so I might do what you did
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Old Jan 17, 2012 | 01:20 PM
  #15  
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From: Pleasant Grove, Utah
Car: 1993 GMC Typhoon
Engine: 4.3 Turbo
Transmission: 4L60
Axle/Gears: 3.42
Re: My LS1 exhaust setup

how, may i ask, are you passing CA emissions with the swap and exhaust?
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Old Jan 17, 2012 | 01:24 PM
  #16  
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From: Cali
Car: '85 Camaro
Engine: LS1
Transmission: T56
Axle/Gears: 3.73
Re: My LS1 exhaust setup

Originally Posted by 88blackiroc
Very nice and clean! Love the black on black to.. reminds me of my car for the rims.. how did you do them? They look very nice and mine are pretty faded so I might do what you did
Thanks. The paint is actually a dark midnight blue, looks good when the sun hits it. The rims are factory just had them polished out which turned out awesome, though I'm thinking of selling them to get some ZR1's.
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Old Jan 17, 2012 | 07:35 PM
  #17  
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From: Cali
Car: '85 Camaro
Engine: LS1
Transmission: T56
Axle/Gears: 3.73
Re: My LS1 exhaust setup

Originally Posted by KiLLJ0Y
how, may i ask, are you passing CA emissions with the swap and exhaust?
It's all in the tune lol
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Old Jan 17, 2012 | 08:52 PM
  #18  
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From: Pleasant Grove, Utah
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Engine: 4.3 Turbo
Transmission: 4L60
Axle/Gears: 3.42
Re: My LS1 exhaust setup

Originally Posted by daddy33
It's all in the tune lol
HA.. yeah we both know thats NOT true
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