idk it depends wheter or not you like to blow smoke. several of my friends have them late 99,02,96,97, and I have one on my 95(all were customed burned by Beans) the 99,and 02 blew quite a bit of smoke with just the chip. I got my chip when I got my injectors and mine pours smoke. the 96 had his chip before injectors and his wouldn't blow any smoke due to small factory injectors 92cc, and the chip would overload the injectors and cause it to sputter. Your truck may have the small injectors, you could ask Bean he would probably be able to tell you more than me, he is a vender on here and I'm pretty sure his profile is bdp I would definatly ask him. he knows every thing about the psd. sorry for being so long winded