ok so i bought this car for $300 runs drives stops.... its a 99 pontiac gtp 3.8 has roughly 240xxx on it idles smooth shift great. my question is any advice on cheap upgrades since it was so cheap lol. in the process of getting new mass sensor rear struts and evap solenoid and canister and gas cap. also doing the oil change and s/c oil... any other recommendations so i dont break the bank haha dont want to put to much into it. oh it has a k and n filter with a weird sealed box and the pcm is in it and has msd coils....
