Well, i get what you pay for.
I Work on a sign shop and it wasnt about sticker trust me and by the way i removed the ugly piece of metallic sticker that comes with the aem intake and i just put the silver one which is way better. About the performance YES MUCH better.
I use to put my hand on the intake and check if the -ebay intake- was hot and always was hot now this new one doesnt really get hot but still can~t believe the diference when i turn on my engine,
I was going to buy those generic headers but i preffer to save some money and get the DC ones i guess cheap stuff sometimes works sometimes dont.
im sure i learned
Oscar