:eyebrow: maybe if you get a shit ass plate. ive had no problems with mine.
but i agree with everyone here. the only reason i have a cutout is becuase, i have much more cubes than the majority of the turbo peeps here…and it would be impossible to have my exhuast be proportionably larger. therefore, i the cutout helps me alot, limiting backpressure across my turbine.
even the “well responding” NA f-bodies have minimal power gains, and im talkin big time builds.