So I've only had this car for about two weeks and I'm already getting the itch to modify it, only problem being its a base model Pop. Good news is it only has 20k miles on the NA Multiair. If I wanted to get a little more power without going the turbo route where would I go? And how would I get past the 100 MPH limiter. I've sniffed around and everything seems to be pointing towards an ECU tune along with better cooling and airflow. I was also planning on changing out the suspension and wheels for something a little bit chunkier and meaner. All the best.