i found one the part number is 49328-13050103 its a single flapper, how can i check to be sure?

 

The answer is contained in your own question. Although there was an earlier double-flapper 10.5 housing, only the 10.5 housings have the single-flapper WG(I think). Both the 9.0 and the 9.8 housings were only configured as double-flappers, if I am not mistaken. So, if it has a single flapper WG, then by default it is a 10.5.

 

Likely a 10.5

 

Single flapper 10.5 started in the '05 MR and all the IX's have them. Any double flapper would be a 9.8. That's to my knowledge at least.

 

douple and 10.5 at least EVO 6.5 TME turbocharger

 

figured it out, the last 3 digits were 105..thanks guys