The factory intake system simply can’t match the performance of our intake system. The full factory frontal airbox only flows 521 CFM at 28” of H2O. We improved this by 60% with our open airbox, which flows 833 CFM by comparison! However, it’s important to always look at the intake system as a whole as flow numbers alone don’t always speak to the broader picture. The factory turbocharger can only flow just under 400 CFM through the factory opening, and any intake system will lessen maximum flow. The goal is to minimize all restrictions before the turbocharger as much as possible to maximize performance. The full factory system brings this down to 275 CFM, or 31% less. The full APR System (Open airbox, rear pipe, and turbo inlet pipe), bring this down to 345 CFM, which is only 13% less, or a 25% improvement over stock! This directly translates to more power you can feel. Our full bolt on APR Tuned S3 saw max gains of 12 AWHP and 13 AWFT-LBS of torque using the full intake system compared to stock! These are solid gains that make a noticeable difference in performance!
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