Yeah, tried it the weekend. I think you really need to give the ECU a week to 'learn' the new configuration, and I only drove it for 50 miles on one day. Personally I found it too noisy (even with baffle in) and rough sounding. It was very sluggish (compared to normal) at low revs, with boost starting at about 3000 rpm, with sudden surge at 4000 ( very big shove in the back).
I bought the Supra for it's seq twin system, as my Integrale suffers turbo lag (single Garrett T03, at 1.4 bar), and I wanted a car that pulls from down low. I did the TTC to test the system for leaks/valves working etc and it was fine, as the air escaped when I took the pipe off the EGCV actuator
Definately recommend you give it a go as some people seem to like it. Only takes 5 mins. Rather than removing hoses and using vacuum caps (what are these, and where do you buy them?) I simply used the redundant vac hose to connect both VSV nipples together.
J:)