Very happy with the design. If you know anything about other manufacturers and there design of these or read any of the forums is that they always collapse where the boost tube and intake connect. By CVFab adding the metal ring on the inside. It prevents that from happening. Even during the high temps under the hood. The other manufacturers may have fixed that now, but imo it shouldn't have happened in the first place. MODS: I have the CV Titan v2 intercooler, CVFab Downpipes, and also have Goosetuned Stage 2 tune. No, didn't notice any HP gains/Torq due to the size of the turbos. Also no change in gas mileage. Did get a significant increase in turbo noise just a fyi. As stated on my downpipes review. Just need the CVFab intake with heat shield and vent tube. Hint hint CVFab ;)