I am looking to do a header & my exhaust on my 2.4 and wanted to check what the sizes were for the collectors on some of the popular headers out there being used.

First off I'm doing 2.5" exhaust for future plans.

I know that the Pacesetters are a 3" collector from what I've read. The ones I'm wondering about are the RK, Tsudo, and OBX headers... I know quite a few people have them but I can't seem to find out what the size of the collector opening is on them.



Knowledge about everything and yet an expert of nothing!!
Jack of all trades.

I've got a 3" collector on mine.




I was a retard, and now I'm permanently banned.