stock 3800 downpipe outside diameter

[l67ss]

How big is a stock 3800 downpipe diameter wise thanks

[Scottydoggs]

in the 2.25 range, but its not really round at all. its kinda egg shaped so you need to weld what ever your doing to it.

[l67ss]

Kool thanks, runnin w/o a cat so im gonna use a parts house adapter to neck it down. Thanks for fast reply

[l67ss]

The rest of the system is 2 1/8" right?

[Fivefingerdeathpunch]

2.25 back to the Y, then it's 1 7/8th to the tips.

[Scottydoggs]

its all pretty much 2.25. 2 1/4 inches. out side diameter. inside is 2 1/8 iirc.