A few people have raised the issue of this product recently. Has anyone actually independently verified this power claim. Apart from one advocate on this site, no-one has been positive about this product. Is possible that because at any given throttle opening, other than maximum, the larger throttle allows more air and so it appears more responsive. If this is the case, wouldn’t the same result be achieved by modifying the sensitivity of the electronic throttle control. Given that there are more restrictions in the diameter of the inlet piping, I don’t see how the larger throttle body will make a difference to peak power or torque. Added to that we are talking about forced induction, where the flow through the throttle body is not a factor in making power, even at most upgraded power levels (IMO). Maybe there is a power level where the restriction in the throttle body, or its larger diameter to allow a higher air flow becomes a factor, but only when it becomes the focal point of restriction in the overall plumbing. Comments, as I'm keen to see an explanation! Brian. ← I'am with Brian $700+ for 8kw not value for cash