The drawback i see on that front mount is that the left turbo feeds the right TB and vice versa. Increasing piping length and adding pressure drop points. Another is that it does not have enough charged air tubes, couple that with the really long tubes and you start getting poor results because most intercooler cores cool the charged air within the first 6-8" of the charge tubes.
The other thing is what does the core look like inside.
Most core manufacturers have gone to the staggered internal fin structure which has been proven to cool better and have better recovery times.
Garrett internal fin structure  Tradstone internal fin structure  China cores aka cx racing, godspeed, and many others  For shits and giggles i am including the japtek branded chinese intercoolers. On the left is the thinner core which is the same as godspeed, corsport, dpt, or your favorite ebay seller. On the right is the other china made intercooler which is the same Z1 BA.  If you look at both of the core internals you see which is better.. I took part in a big intercooler/core test that happened on a dyno. We had garret core, griffin core, china core, spearco core and a few others. Now most of the kntercoolers were similar in design. The only different one was the griffin core intercooler which was designed like the evo front mount. Now the best of the bunch was the garret core at 24x12x4.5. Did the best in cooling. Second was the griffin tube and fin at 18x12x4.5. The third was the china core followed by the 24x12x4.5 spearco. Now you are wondering wtf? The china core beat the spearco!?
Well its all about design and purpose. The china core measured in at 24x11x3 and had 2 psi pressure drop at the tested 19psi boost level. The spearco had .5 psi pressure drop the lowest of them all. The garrett had .78 psi drop. See what happened with the spearco core is that it flowed so well the charged air barely had time to cool off. That intercooler is best used at higher boost pressures and larger turbo. Measuring an intercooler from its external dimensions tells nothing for comparisons sakes. A Flir camera goes a long way. Also a thick intercooler is only worth it when it can have flow over its face and have enough space behind it so the is no ambient air deflection. The best intercooler design i jave seen is that TDM or what ever it is called. Couple that with a good core and you have something good. My choice for cores as far as performance and value has been the treadstone cores. Cheap and cool as good as garret/precision/bell/spearco, decent pressure drop too.
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