You gained low end by cracking open your secondaries?? I would like to know your theory behind this......
Secondaries are closed to keep the air moving fast enough through the intake, when you crack open the secondaries, you are loosing that velocity...I don't get it.
Originally posted by Thuundar80530:
I actually gained both low end and gas mileage by cracking my secondaries. I already had a 3" to 2-2.25" exhaust and a 'swiss cheese' air box with a high flow filter.
