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Mounting Stacks

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Old Oct 27, 2008 | 09:39 AM
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kaotikedge_111100's Avatar
kaotikedge_111100
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From: La Crosse, WI
Mounting Stacks

How is everyone mounting their stacks? Any pictures of underneath the bed area?

I have two 3" stacks that i used to have mounted in my bed before the body swap. Now with the nice new bed and 3" exhaust I have fabbed up off the ATS downpipe I want to get some ideas before I start in.
 
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Old Oct 27, 2008 | 01:49 PM
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Any idea where I can get 3" flex pipe? I think I am going to just do a single 3" on the passenger side.
 
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Old Oct 27, 2008 | 02:24 PM
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kaotikedge_111100
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These are the pipes I am working with:

tires are 39" for reference







I am thinking of just making the 3" hole in the bed and running some bolts through the flange on the stack and make a backing plate for it on the underside. Then welding a 3" 90* to the bottom of the stack and connecting to my current exhaust with something flexible to allow the truck to flex like it should.

Thoughts?
 
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Old Oct 27, 2008 | 03:33 PM
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Try summit racing for the flex pipe.
 
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Old Oct 27, 2008 | 05:42 PM
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From: Clarksburg WV

 
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Old Oct 27, 2008 | 05:52 PM
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That is a nice looking setup you have there! Did you build that from scratch or did you buy a kit? The ATS downpipe is 3" did you flare it up one size after that?
 
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Old Oct 28, 2008 | 03:28 AM
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LCAM-01XA
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Originally Posted by kaotikedge_111100
Any idea where I can get 3" flex pipe? I think I am going to just do a single 3" on the passenger side.
This is what your truck will look like in that case:





Looks decent on a dually, kinda brings the big-rig look to it, but on a SRW 4x4 I dunno... Those stacks you got sure look nice tho
 
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Old Oct 28, 2008 | 03:38 PM
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Originally Posted by kaotikedge_111100
That is a nice looking setup you have there! Did you build that from scratch or did you buy a kit? The ATS downpipe is 3" did you flare it up one size after that?
Yeah, I did everything from scratch. I built the splitter pipe myself (out of a few 4" mandrel bends and some straight pipe).



I stepped it up to 4" at the end of the downpipe. Originally had it going clear out the back, but just put the stacks on about a week ago.
 
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Old Oct 28, 2008 | 09:38 PM
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You made your Tee the hard way.

The vertical cut can continue down to the bottom inlet which is how I made mine.

I guess not having two welds at the bottom let you use clamps to connect the elbow though, mine is welded.
 
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Old Oct 29, 2008 | 08:40 AM
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From: Clarksburg WV
Originally Posted by Dave Sponaugle
I guess not having two welds at the bottom let you use clamps to connect the elbow though, mine is welded.
That's why I did it that way

Glad I did too because I had a lot less vertical room than I had expected (notice the under bed pic).

Really wasn't hard to do either. Just a little measuring, a little cutting, a little fitting...and then welded it up.
 
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Old Oct 29, 2008 | 08:23 PM
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ghunt, where did you find your stacks? I know you made the splitter and tubes just curious about the chrome ones..
 
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Old Oct 30, 2008 | 10:21 AM
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From: Clarksburg WV
I bought the stacks from airflo.com.

They were originall $100 each, I got them for about $92 each because I tried to buy some they had listed on special and they were out, so they gave me a bit of a discount.

Shop around, you might find a better deal on ebay.
 
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