If you buy brand new ZEX wet nitrous kit it was cost you around maximum 50K. Installation would be around 1K. If you want to go for 4-2-1 performance headers they will cost you around 4K add extra 2K for heat-wrap or thermal-wrap. Complete downpiping will cost you around 2K and get a good intake filter of simota or K&N. K&N will be more expensive. No need to do anything on internals it can hold 50shots wet nitrous easily on stock fueling. Salik was using 55shots wet nitrous on his lancer 1.6L which has got more high compression ratio then Liana. This is the maximum cost I am telling you. You can get a good used nitrous kit around 25-27K from JZ or Wasay. Rest get 4-2-1 headers custom made from any good fabricator. Heat-wrap or thermal-wrap is just to provide more efficiency this thing is optional you won't require heat-wrap on this. Rest buy any good mushroom or cone simota airfilter.
