hoho never underestimate how effing nasty and shltty the real cheapo made in china crap really is, wouldn't touch most of the chinese shyte with a 400 foot bargepole, those manifolds are likely made from recycled human excrement shipped out of shanghai, big chance they'll melt into little bubbling pools of toxic chemical waste quickly seizing the pistons and shattering the crankshaft in an ear-splitting explosion of shrapnel and flying engine cases ..
good luck then, fingers crossed