There's no reason to buy speed parts unless they make your car quicker. Want a Dominator or a nitrous kit just because you'll look cool at cruise nights? Then you're a turkey. Spend your money on more chrome and leave this story for those demanding dragstrip-proven value for their hard-earned bucks.
In the following pages you'll read 10 tests where we took average cars, added common aftermarket parts, and blasted down the quarter-mile to see if we'd wasted our time and money. We tested a few of these items because, frankly, we figured they wouldn't do squat. Surprisingly, they all did--we went quicker every time. We'll also share with you the cost involved, but be forewarned that prices will vary depending on your car and where you score the goods. Of course, the results of the speed tips shared here are also kinda car-specific, but you get the idea. In case you don't, here's a clue: Go faster, spend less. Yeah.