Search results

Too make a long story short, I thought I had a vac leak, took it to 2 different mechanics, both said everything is 100 but that I have way to much airflow to be running my car with no professional tune. Here's the catch, I was also informed that I have a catless down pipe, which I would prefer...

Recently been having some really strange readings on my 10th gen si with regards to fuel trims. Thought I had a vacuum leak or a messed up ewg or egr valve or whatever could cause lean fuel trims. Turns out I have too much airflow because the previous owner went catless and my stock tune...

I have recently purchased my si and am in the process of trying to get it back to tip top shape seeing as the previous owner was not shy of the pedal. I got the ktuner to eventually put a tune but in the mean time I am using it to monitor and learn. As you can see in the pictures there was 2...