I really dunno how to see if it's original or duty free shop as i bought it from a supplier for my wedding dinner..and these are spare unused bottles.....but before purchasing you can inspect it first...it all comes with boxes...
can sifu teach me how to diy the tapak? fyi, the air ram is for iswara carb and the diameter of the hole is like 12 cm,, i wana fit into my sunny . my sunny air intake diameter is about 5cm...how ar?? thanksss