helo mga tols, im planning to upgrade yung sa may air intake nang external ,lalagyan daw ng kasukat na tube saka ilalagay sa dulo yung external filter na parang horn type .d kaya magkaproblema makina ko in the long run and does it realy improve the performance ?nakita ko kasi yung nasa shop nissan sentra ,it looks nice and it sounds better ,k kaya to .. thanks ..