Car whiz & gurus, i'd like to know papano ma-modify, just the simple one, ang engine ng Gti 92? Do i need to change the entire engine or just "bolt-ons" will do? my goal is to increase power maybe up to a min of 130hp. Magkano po kaya ang magagastos dito? Saan po kaya pinapagawa ito? your suggestions are very much welcome. Thanks.