I did the homemade tgv deletes myself with a dremmel, and at the same time installed the perrin turbo inlet. truthfullly, i could tell a significant difference. boost comes quicker, throttle alot more responsive. lots and lots of work involved, this project not for everyone. pdx tuning gave me a map update that fixes the cel code p2419. i now have a pretty good understanding about getting around the engine/intake/tgv/injectors. i will try to answer any questions if needed.