EGR Block Off Plates

[Magier]

Mal ne Frage... Bin bei http://www.mvpmotorsports.com/Templa...332&SearchYN=N auf folgendes gestoßen:

Powerhouse Racing EGR Block Off Plates for 1986-92 Supra Turbo
ITEM # PHR EGR Plates 7m


The factory EGR system was designed to assist in emissions reduction by allowing hot exhaust gases to be recirculated into the cool incoming air within the intake manifold. While this was a great idea from an emissions standpoint, it has horrible effects on a turbocharged vehicle that relies on cool charge air temperatures to make horsepower. Even removing the vacuum hose from the EGR valve does not stop this process, as exhaust backpressure still manages to open the valve under boost. Stop these hot gasses from ruining your cool air the right way, by installing a pair of PHR EGR block-off plates! Machined from 1/8" 6061 Aluminum and hand-polished for a show-quality appearance. Accept no cheap imitations cut from thin material that warps and leaks, go with the best!

Der Effekt ist mir klar, aber ich hör davon zum ersten mal. Kann mir jemand sagen, wo genau die montiert werden und ob man für den Effekt wirklich 45 $ +tax investieren muss?