Im 18 i just this car in 2010 in October when i was 17, i got this car cus i was in a car wreck with my Nissan se v6 my dad gave me. I really didnt car what kind of car i got next, by my parents surprised me with the firebird. and i mean its in GREAT SHAPE!! Im more of a mustang person only because my dad has 2 of them when he was my age back int he day (1969 Mach I yellow, 1971 Mach III green). I had a few small things to the car since ive had it already, window tint, ttwo 10inch subs with 1000 amp, kept the moonsoon stereo cus they dont make them. (its been a father an son kinda project thing) But my real question is that me and my dad wanna start putting poswer into it BUT we dont wanna over do it. and i know that they make performance chips. do they really work like they say they do when it comes to HP gain, saving gas, an other things. Like the 1 i saw for $69.99 its a G-Force one but idk if this one and other chips are scams or they just dont work as well as they say. please help (by the way the car in completly stock engine wise). thanks everyone!