[sideview_180sx]

Originally Posted by loveless

For instance, an obx intake is no differnt from an injen intake except for the filter. Obx shifter shifter, a knock off of C's, seems to have little complaint. An ebay down pipe, test pipe, is no different from an hks/greddy/invidia one. Exhausts however, due to the material used for sound resonation and flow, matters.

Of course I know you get what you paid for. Don't get me wrong, I wouldn't mind spending on a hks manifold but I would like to know HOW and WHY it would matter between 2 similar products.

even the hks one cracks, and thats an expensive decision. it all comes down to the materials used, quality of weld and preventative maintence. people have broken the knock off shifters and other problem. ebay products are for the time being, if you plan on any form of longevity, you will learn the lesson, but what is my opinion going to do if you have already decided on crap manifolds. numerous threads on many forums explaining the same thing.