i just installed dc headers and an apexi ws2 exhaust on a 96 obd2 gsr and i turned the car on and check for leaks in the exhaust when i went to turn the car off the car would not turn off the engine kept running. I took the key completely out and it still would not turn off the car is sitting on towers right now and no wheels.. it just happend right now..I would really appreciate some help because this is a Daily driver and i got work monday.