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Old 02-13-2012, 02:57 AM   #23
lodown1
Scooby Newbie
 
Member#: 200596
Join Date: Jan 2009
Vehicle:
98 Forester 3.0R

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I wanted to try making my own 3-1 merge collectors, I have to say once you have a good jig they are very easy.

I welded up a piece of angle iron into a 90 degree square, welded another tube to that with a nut welded to hold the 13 degree elbow used for the merge collectors


all that i had to do once the jig was set up was to rotate the tube 30 degrees one way and then 30 degrees the other way for a total 60 degree cut.




3 pipes finished ready to weld


tack welded collector


and finished with a small transition on the end it expanded from 2" to 2.5"


so i made one more of those and was ready to move on to the actual headers
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