When you blank off a EGR system, the best place to blank is right at the exhaust manifold.
This is better because it means you have not created a closed end "flutter-pipe" attached to the exhaust manifold, which MIGHT affect the way the turbo picks up speed, were it to create oscillating waves up and down the pipe.
The turbine (hot driving end) works best when its blades are hit by the very fast pulses coming from the exhaust ports. A stream of sharp pulses is better than a steady flow of smoothed-out exhaust, and, any smoothing-out process involves expansion of the gases, which means a temperature and pressure drop, and less OOOOMPH to drive the turbo.
Fit the EGR blanking plate to the manifold end of the transfer pipe, using TWO little Allen socket screws. The TD5 plate fits a treat, and doesn't even need a gasket.
CharlesY