Wastegate O.E.M. vs Aftermarket?

[viper1982]

Good, I haven't connected for a while. I want to ask you a question about a Boost topic. I have the doubt that it would be more advisable in terms of the increase in Boost and efficiency, if I go testing with the diameter of the "pill restrictor" or otherwise replace the "wastegate" valve with the Kinugawa or similar with the possibility of changing the different springs with different degrees of sureness, my question is specifically if it is justified to place the wastegate with harder springs, or if the behavior would be better with the original wastegate and go altering the diameter of the pill to obtain the desired results? What is better? Who gets better results without having so many pressure spike problems?

My current configuration is a Prodrive ECU with OEM turbo TD04L-13T (9-blade turbineof Kinugawa) Larger Intercooler w/large Hood Scoop & Splitter, K&N panel type filter (high flow), Equal Headers w/ uppipe and 3" full decat exhaust. Walbro 255LPH, Tomei Fuel presure regulator, 550 cc. Yellow´s Side Feed. Samco IC hoses & Inlet too.

Thank you