Thanks very much for the replies sirs,
Intakes - yeah, thats my plan, simota tube + K&N Universal cone filter.
headers - Looking for pa rin tlga, I'll be checking up SX8ers at HCP
Mufflers - 2" inlet, freeflow, kahit anung tip na, ayaw ko lng ung maxadong OA sa laki, parang mangkok tignan eh, (tama ba 2" inlet, and Piping for exhaust, for a 1.3 EFI engine?) << last na yan...

mukhang mufflerland ang babagsakan ko ah, hayz...hehe