I have a question about doing this. I was wanting to replace the screws on the TB and possibly the secondaries, but I feel this would fall under the rulling in 13.10A (below). What do you guys think? Also would cracking the secondaries be illegal?
Not that this would make any significant gains. But those screws are pretty big and do disrupt the airflow. Expecially since they use the same ones on the secondary butterflies as they do on the TB.
13.10 Engine and Drive Train
A.
The engine air filter element may be removed or replaced. A replacement element which is taller than standard may not be used to hold the air cleaner cover open. No other components of the air induction system may be removed, replaced or modified.
