That's because you have 3.73's. I was told to use 4.10's because I have an automatic. Definitely had to have the shift pressure/point from 1st to 2nd adjusted after install. Was chirping and setting off the traction control everytime it shifted from 1st to 2nd. Now after the tune you barely feel it shift between gears. Feels great. I'm not a racer, just trying to get the most umph out of the car. How does your car shift between gears? Is it an automatic?
Idk who u talking to but I got factory gears lol it shifts fine hard enough to have random chirps every now and again dang posi makes it harder to with the regular gears even with the higher redline/race tune, been wanting the 3.73's but I do to much highway to worry about those right now, maybe after school is over (8 years unfortunately) I'll bother with those lmao
BV heads, P&P lower, windstar upper, comp 218/226, 4.2 bottom end, 3k stall, flow 40's, O/R x-pipe, Pacesetter lt's, Xcal2, 65mm tb, CAI, 8.8 w/ 3.73's, MM LCA's
coming soon: blower cam and intercooled M112
dealer for Ortiz Performance; tunes, cams, etc. PM me!