I got a 2003 AWD Vibe at a shocking price (previous owner kinda smelled, that's been fixed) but since purchase I've notice sled dogs may give me more mid range acceleration than the 1.4L engine

.Ultimately what are some quick and easy ways to get some power back (if there was any to begin with!) or increase it? I've already put in synthetic oil, new oil filter, new air filter, and switched to highest octane gas, but what else can I do that is relatively cheap, easy to install, and has no potential for engine/tranny/etc damage?I've heard cold air intakes can make the engine run too lean and cause big problems, but then again a lot of people seem to love them and have no probs with em. Is ram air better, equal, worse? Is a K&H air filter really worth the $55? I've seen exhaust upgrades too, but because I got the dang AWD model the ones I have seen don't fit... thanks to everyone in advance for the advice!Jason