Generally, anything sold at JCWhitney, like these are, is questionable to me. Years ago, some of the stuff they sold could be good or bad. I remember buying a spoiler from them that came in a name brand box that had been reversed so you could not read the label. But it was still the good part. And somebody I knew ordered a camshaft from them that was made by Isky. But it was hit and miss because some of the stuff I got from them was garbage.

 

Did K&N solve the check engine light problems that members have had ?