Spending A Ton Of Money? I just purchased a 2001 Jeep Grand Cherokee Laredo 4.0-liter I-6. I love jeeps with a dying passion but i love to go fast also. I cant afford a Jeep SRT-8 and want to have the speed of one in my Jeep. What are some easy and not so expensive ways to increase HP, lower the weight of the car, and just overall make it a fast light Jeep.