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well as cooling capacity. This is the result of it having two additional bars to carry charge air, while maintaing the same length (Ash's has 13, SZ's has 15). Pressure drop isn't a fixed number, but dependent on CFM and pressure (boost). It increase and decreases as air flow and boost increase and decrease. If you look at the cooling fins, you'll notice that the SZ unit has a higher fin density, resulting in a greater heat exchange. Also, the walls of the hose bibs are thin walled on the SZ core, so it has a consistent ID from intercooler piping to the intercooler hose bib. Ash's uses a thick walled bib, resulting in a "step down" as air goes from the piping to the intercooler hose bib (and a sudden increase in ID as it exits). Fitment isn't an issue as the increase in dimension is the height (where there is room for it) and not in width (where there isn't any room for additional width). I am, in no way, bagging on Ash's intercoolers (I have them), but simply noting the construction differences of the SZ core's differences and advantages. The piping also has an ease of installation advantage; it is ovalled in areas that were a difficult/tight fit with other piping kits.
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