This MAD DOG TRANSMISSION is designed for lots of abuse, excellent for RACING or TOWING heavy weight. This transmissions will not take away any horsepower from your engine. The reason being is that we run roller bearings instead of thrust washers which drag inside the transmission and create more heat.
The H-D 4L80E transmission is suitable for high-performance vehicles with peak horsepower output of up to 1200 HP.
