Good friend of mine fitted one with in 10mins of fitting it boost spiked to 2bar plus and cost him £750 for a new engine and the cost of a proper waste gate it's up to you though bud I know what I'd do
If you want to spike to over 2 bar and blow a hole in your block put a cheap nasty one in it if you want it to do its job how it should get a genuine tial or turbo smarts. At then of the day buy cheap buy twice as the saying goes.
Japfest ticket will cover you and 3 people but cut off has already been so will have to see closer to the time if any are for sale. jae tickets haven't been released yet.
Yeah man I needed it sorted as was advised not to drive it like it was and I need it for work so had one over nighted to me thanks for the offer of it though bud appreciate it.
http://www.rhdjapan.com/cruise-full-boost-strengthened-valve-springs-toyota-4e-5e.html If they have them in stock but will cost loads for shipping and import tax