I am looking to purchase a cold air intake for my '02 Protege5 but am looking to get the best price (go figure). If any of you who have one could tell me where you got your and how much you paid it would be much appreciated. Also interested in getting an exhaust (cat back) but already put an aftermarket muffler on and would like to know if there is any big difference in the two (power wise) or if it would just be a waste of money. .............. and one more thing, this may be a stupid question but putting on a CAI voids the warranty, correct? Im almost positive it does but figured id ask. Thanks