Yank 4000 stall PY4000E
Yank 4000 stall PY4000E i have a PY4000E Pro Yank 4000 Extreme nitrous/blower converter for a 4L60E. Has approx. 6000 miles on it. I believe the str is a 2.1 OR 2.2. Very tough and efficient converter. Only about 5-8 RWHP difference between locked vs unlocked on motor on futral's dyno.6 bolt hole design
$450
$450
