Go with the TKO, fine tuning highway RPM is a little silly don't you think? 1800-2200 at 70 MPH is plenty of a window.
T56- an extra gear you will never need-nobody needs .50:1 ever. No car can pull that gear top end so it is pointless as top speed gear, it is one more gear set to possible fail, it is heavier, it is more expensive.
Really not sure why they ran them to begin with, I would guess to help satisfy CAFE requirements.
The new DCX monster has not even been into the 2 top gears yet and it has already proven itself to 220MPH, waste of money IMO.
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Dennis
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