The fastest 2004R transbrake made period. This is a true pressure release Griner transbrake exactly like the one we use for our Griner Pro Valvebody. Brake setup is instant and release is lightning fast. This transbrake must be launched from 1st gear and the valve body retains all automatic function. This is not a pilot circuit or switching valve. The transbrake will fit under a stock transmission pan. Target Release date March 1st. Price will be $395