Re: intake pipe from back of airbox lid
It could cause a drop in air speed, and in turn a drop in performance.
The best cheap system is to use the plastic AU piece from TB, the flexible AU elbow, and then a custom 3" exhaust piece to the air box.
All those pieces should cost less than $100.
The only way to improve on that is to have a complete mandrel bent section made up from TB to air box. But this will cost several hundred dollars, and give you no benefit in performance over the cheapy, but it does look nice.
4L I6, naturally aspirated producing 173.5rwkw.
14.410 @ 96.49mph with street radials.
What's that?..... Did I hear you say TQE power?