4 Speed 4l80e Reprogramming and Shift Kit water-methanol injection Water-methanol injection has been used

Water-methanol injection has been used for years in high performance diesel engine trucks and tractor pullers

Pretuned for Hmmwv’s and H1’s

This can lead to increases in torque and horsepower

OEM brushes and brush holder for extreme long life

better throttle response

4 Speed 4l80e Reprogramming and Shift Kit water-methanol injection Water-methanol injection has been usedThis 4L80E Diesel Performance Reprogramming Kit fits all Hummer H1 and HMMWV vehicles equipped with 4L80E and 4L85E automatic transmissions. Common complaints on these transmissions are no upshifts, soft 2 3 shifts, burnt direct frictions, broken hard parts as well as gear ratio and solenoid performance codes. The boost valve assembly is notorious for wear causing both low pressure as well as runaway boost pressure. With the low boost pressure