There has been tons of discussion on this topic. Do a search, and the answer you're looking for is probably there. Also, tell people what kind of engine you have. My CSVT recommends .52-.56.
Old car: '98 SVT T-Red
K&N air filter; Ford Focus RS shift knob. Off to be auctioned off somewhere.
New car: 2003 Honda Accord DX Sedan, 5-speed.
