Most speakers for our doors arent gonna give you much bass...they arent deep enough to put a lot out...Basically anything is a step up from stock. Walmart Pioneers are actually a decent speaker if you just want to upgrade to somethin without spending a lot of money to do so. I picked up a pair of new Infinity's for i think 50 off the net and im really happy with them, very clear and pretty much bolted right up...and yes, as stated, stay away from the xplodes!
