I've sold plenty of both pumps and not a problem out of either one on 1999 to 2004 Mustangs, oh and the GT (40) pump is @$20.00 cheaper than the SVT pump
I have it. Great pump and definatly seems stronger than the SVT pump. According to Tim I was the first on his dyno to max one out, because usually the guys making alot of power un the cobra pumps W/ BAP or the GT pumps with BAP, ect.
Its odd, I maxed it @ 5200RPMs, but my A/F never got above 11.8 and it was pulled to 6200RPMs.