Originally Posted by turnover

Fare comment Mark ,and as you've tried them both your more qualified to comment on there performance,especially on the ybt,I no when the gtx series came out the difference shown on the overlap on Garrett site it looked impressive considering they are the same core size but obviously on the yb they're not but have you seen the same results on a high specked engine ie head work cams ,compression the usual,or have you not bothered and just used the bw