Originally posted by Seawulf:
It's bigger than 2.5" but smaller than 3". It's around 2.75", but I can't remember exactly. I know that a 2.5" pipe will fit inside the TB snugly.
They were talking about the coupler.....the coupler that comes with the CTA intake and the one I replaced was a 2.5"-3" 
Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ
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