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stock downpipe size

 
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Old Sep 17, 2003
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stock downpipe size

does anyone know the diameter of the stock downpipe ?
Old Sep 18, 2003
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ah it was either 1.75 inch in diameter or 2.

i forgot. sorry.

most likely 1.75 though. heh.
Old Sep 18, 2003
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2 1/4
Old Sep 18, 2003
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2 1/4?? i thinking more along of what cap was thinkin...
Old Sep 18, 2003
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Yes 2.25
Old Sep 18, 2003
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i really dont think is 2.25 because my cat back is 2.25 and its big compared to stock piping!
Old Sep 18, 2003
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its 2 inches
Old Sep 18, 2003
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do muffler shops make custom piping as in could they forge a custom downpipe for you to connect to your shorty header?
Old Sep 18, 2003
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they will most likely cut off the flanges on the lower part.. and put in their pipe and o2 bungs
Old Sep 18, 2003
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okay it could be 2 inches.

i remember it was bigger than the rest of the tubbing from the cat back.
Old Sep 18, 2003
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so then it really isn't worth upgrading then.. just the downpipe, the cat is a different story..
Old Sep 18, 2003
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well.. no.. the downpipe makes a hell of a lot of difference, just that if you go with a custom pipe from a muffler shop.. they are gonna use the old flanges.. which are gonna cause restriction
 
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