Hi, I have a black 2002 Chevy Impala 3.4 liter with 98,000 miles on it. Ive had the car for about two years now, but i recently sparked up the interest in giving it mods, and making it nicer than it is. I dont want to do tooo much because finances are a bit rough, but when i do get an idea for my car, i save up some money and i put it into effect. So far, i put in some neons inside my car that pulsate to the bass, and i put in two 12 inch kicker subs that pound out 600 watts. I was also thinking of putting in new speakers, and a new double din head unit that plays dvd's. I dont know if its worth doing all this to a car that has 98,000 miles. I was also thinking of making this car into a "cop" car with putting in some strobes in it... In terms of performance i was wondering if i could do some upgrades that are not too expensive... ANY IDEAS??!?!?!?!?!?