The SVT and standard UIMs are a little different. For example, on the regular UIMs, the EGR channel runs toward the bottom of the TB inlet and 'feeds' 3 ports located on the bottom lip of the TB opening. From the pics I've seen posted, the SVT UIM appears to have the EGR channel running to the top of the manifold where there are 2 ports on the top lip of the TB opening. These 'ports' will completely clog up with carbon and will visually blend in with the surface of manifold. I didn't realize there were 3 on my SE until I started cleaning and knocked a chunk of packed carbon loose from one of the plugged ports.
A standard SE looks like this: (Thanks to Geopapas
)
http://community.webshots.com/photo/48338095/48339721qpkTjP
