since you have now posted over here...
I am curious - I don't understand how these work on our motors. I understand the concept...swirl the air, atomize the fuel, mixit all up....all good thngs. However...thsi is installed WAY upstream of the fuel injectors. the air gets its swirlie either before or after the MAF...and then travels that long - and contorted - path to the cylinders, where it finally meets up with the gas injection.
Will the air still be swirling enough to matter?
Have you installed this or another and realized any performance or mileage increase?
Has anyone other than a promoter of this item?
Getting back on topic - in my opinion, if it is the same as the inner diameter of the CAI or the SRI, why wouldnt it fit?
Inquiring minds want to know...
--george