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Hedman header Y-pipe.... 2.5" at the bend!

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Old Aug 13, 2006 | 01:45 AM
  #1  
Beachmonkey6's Avatar
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From: Dallas, Texas
Car: '88 GTA
Engine: L98 -350TPI
Hedman header Y-pipe.... 2.5" at the bend!

Im getting the hedman shorty headers '68471' and the y-pipe goes from 3" to 2.5" at the bend. Should i buy the hedman y-pipe that goes with them and just deal with it? Or is there another y-pipe that i can buy that is 3" at the bend? And with it being .5" smaller will i loose power and deeper note as compared to the full3" y-pipes? Thanks.

Here is a link to the headers im getting...Hedman Street Hedders: HED-68471 - summitracing.com
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Old Aug 13, 2006 | 10:17 AM
  #2  
unklechuckles19's Avatar
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From: Stroudsburg PA
Car: 1987 Z-28
Engine: 355
Transmission: T-5
Axle/Gears: 10 Bolt/3.23 peg leg :(
the hedman y-pipe is 2.5" all the way back. You'd have to modify it after the "Y" to make it 3" into the cat. I have this y-pipe, and it was a PITA. I ended up having a my muffler shop "modify" it, basically adding pipe to it so it would clear my oil pan, and tuck up nicely. The heders are great, I love them. But if your going with a y-pipe, your best bet is to have a muffler shop make a custom one for you, thats 2.5" to the Y and then 3" from the Y into the cat. Less hassle, and well worth the extra cash.
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Old Aug 13, 2006 | 05:18 PM
  #3  
Beachmonkey6's Avatar
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From: Dallas, Texas
Car: '88 GTA
Engine: L98 -350TPI
About how much would it cost for a muffler shop to make me a y-pipe?
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Old Aug 13, 2006 | 05:48 PM
  #4  
JamesC's Avatar
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Why not Hooker 2055's and their 3-inch mandrel-bent Y?

JamesC
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Old Aug 13, 2006 | 08:24 PM
  #5  
unklechuckles19's Avatar
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Joined: May 2005
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From: Stroudsburg PA
Car: 1987 Z-28
Engine: 355
Transmission: T-5
Axle/Gears: 10 Bolt/3.23 peg leg :(
perhaps he doesnt want air tubes? I was going on the assumption he was going to get the hedmans like stated in the first post.

I dont know the going rate at your shop, but I know mine runs 60 bucks an hour, and it took my exhaust guy about 2 hours to make one. Best bet would be to call around and ask
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Old Aug 13, 2006 | 08:27 PM
  #6  
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Originally Posted by unklechuckles19
perhaps he doesnt want air tubes? \
Might be cheaper to weld the air tubes closed (which is what I had done) than fab the Y.

JamesC
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