catless

Stage II 05 92x Aero, Catless TBE. Any reason why I am getting a flat zero for A/F learning 1? Here's a datalog for 2nd gear pull. https://docs.google.com/spreadsheet/ccc?key=0An0rRJgUjMOudElkTzBjS21XN2FoaGl0ckFTeTlPZHc#gid=0

Hey guys I have a hook up for a catless dp and I want to know if it's a good idea to have on my wrx dd also I'm keeping these mods hidden from the parents so I need to know if you guys think the smell of the exhaust is strong enough to alert them of any mods. thanks.

Hey everybody, I am new to the club and this is my first post. I recently purchased a 2007 STI and I have the money to get a new exhaust however I have a question. I have researched about the difference between a catback vs turboback exhaust and obivously the turboback is much better, however...