...car parts that are cheap and quick? my exaust also smokes sometimes when at a stoplight and burns oil really fast! not sure the cause of oil leak.

sorry to say you sound like you need a new car, forget the suspension, it won't pass emissions if its burning oil, infiniti is a good car, but after all its 15 years old

take it to a mechanic, or if you know anyone who knows about cars, but if you know what you need to buy and how to install it, buy it from ebay, and somtimes if you take your car to a mechanic, they can take advantage of your little klnowledge of cars, so be carful