OK,
I've been to see the company who will be making the IS200 performance manifold for Prolex-UK. I'm hoping for the first one to be ready in 3/4 weeks.
It will be made to suit N/A and S/c'd cars I'll be getting the test car Dyno'd so you can see what gains you will get from this mod (standard car) .
I'll be getting a batch of 10 made up so please express interest below. I will be taking firm orders when the dyno run has been done and pictures have been made available.
Not sure on price yet will depend on the numbers and finish.