I'm looking to purchase my son a good used car. I found a 2001 Infiniti I30t, went to see it and everything looks good. The seller told me the car needed a muffler end pipe and the car has 180,000 miles. My son is going to college in the fall and needs a car for now to get him to school each day and most likely the car will be parked when he goes off to college and driven every once in awhile. Please let me know an estimate of this repair and if it's worth purchasing tomorrow. Thanks!