I've now read a number of interesting opinions about the product, but no one has yet answered the question as to whether the air intake tube on an AWD Vibe is 2-3/8 (inside diameter) as the Tornado chart says or 2-3/4 as I have measured on my machine. I'd like to hear from some AWD owners as to what...

I have a 2003 AWD Vibe and I'm thinking of installing a Tornado Fuel Saver. However, the Tornado website says inside diameter of air intake hose is 2-3/8 inch, thus requiring a KI-60 Tornado. I measured the ID and came up with 2-3/4 inches, which would require a KI-70. I don't want to buy the item u...