If i dont have a scanner available 2 scan my car for kr is there any other way 2 know if i have kr? Like would the car react a certain way, sputter, knock or anything? Reason is i have a 98 gtp, it has a 3.4 pulley, 180 stat, 3 inch catback split to 2.5 inch dual turbo mufflers, al 104s, short ram intake, optima red top, 8mm accell wires. The car is running real strong, so would scanning really be the only way 2 know? This is the 1st time i own a gtp. Next weeek im gonna try 2 get a 3 inch downpipe or atleast a 3 inch u bend delete. Any good info out there 4 me?

Thanks....