All this "unit" does is retain back pressure in the exhaust system overall ( due to it being in the backbox, effectively ) and would ,possibly, produce higher gas temperatures ,by return, to the manifold ( hence Turbo ) ........BUT more than probably just causes internal detonation issues within the pipe (superheated gases meeting heated gases )... none of this seems like something i would like to shell that kinda money out for ... also with modern mapping and tuning ... its kinda redundant technology .... then again i could b wrong ... it has been known to happen
Bet it would make the manifold glow a pretty colour though!!!!!