welds look sh*tty compared to an o2 induction. Jon at O2 really takes his time to do things right. each manifold is hand made and when i got the manifold i didnt even want to put it on the car it was so clean. everything was polished and blended perfectly. the craftsmanship of the O2 is second to none.
so if the price is the same, i'd honestly recommend the O2.