LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

stock exhaust diameter...

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Old Dec 26, 2003 | 09:24 AM
  #1  
Jag's Avatar
Jag
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From: College Station,TX,USA
stock exhaust diameter...

I'm trying to decide what size cut out to get. 2.5" or 3"?
Old Dec 26, 2003 | 09:33 AM
  #2  
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No I think it's 2.75"
Old Dec 26, 2003 | 09:38 AM
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2.75? Hmmmm, all the place I see that sell cutouts go from 2.5, 3.0, and 3.5.
Old Dec 26, 2003 | 11:48 AM
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2.5 sounds right
Old Dec 26, 2003 | 11:57 AM
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I ordered mine from Thunder Racing last week for my stock exhuast and they told be I needed the 3'' cutout.
Old Dec 26, 2003 | 03:03 PM
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Stock pipe diameter is 2.75". The 3" cutout should slip nicely around the outside of the stock pipe.
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