I have used Summit parts before and probably will continue to do so. I wouldn't buy a converter from them though. Not something to cheap out on. Save up a couple hundred more and purchase one from a reputable converter maker. The Summit may be fine but i personally wouldn't risk it. The proper converter is one of the biggest performance boosts you can do for your car. My cheap converter(GER) liked to crack flexplates. I have a Dynamic 9.5 inch now and couldn't be happier.