Article taken from: http://www.automatictransmission.com...p?NewsId=19197
Nissan RE4R01A & RE4R03A High Performance Valve Bodies
Rodney Hudson-Davies posted at 21/06/2011
Nissan High Performance RE4R01A & RE4R03A Stage 1, 2 or full manual Valve Bodies make all the difference. These complete Heavy Duty Valve Body assemblies are much more advanced than the basic do it yourself shift kits as they come complete with Brand New Solinoids, Thick Lazer Cut Sandwich Plate, Oil Filter, Pan Gasket and have been Fully Pre-assembled and Tested by a Qualified Automatic Transmission Technician.
Often we hear owners complaining about the quality of their Nissan Automatic Transmission when shifting through the gears, most come from everyday drivers who simply can't stand the constant slipping and flaring between the gears. We have had dozens of owners contact us about improving the transmission in some way to overcome the problem.
We put together a development program and have come up with a cheap and easy way to turn your Nissan transmission into a firm shifting transmission without having to remove the transmission from the car. Simply remove the valve body and exchange it for one of our Stage 1, 2 or full manual Recalibrated Extreme Nissan Valve Bodies.
The valve body comes with easy to read instructions for the removal and refitting of the new valve body. It has undergone a tremendous amount of testing including Nissans that have had Turbo Chargers, Super Chargers and even V8's and in every single case the customer has been quite overwhelmed about the difference the New Valve Body made to the vehicle.
The transmission once fitted with the new valve body can easily handle more than twice the power and torque with firm shift points even while towing trailers that are of considerable weight. The New Valve Body has also been tested behind High Performance V8 & Turbo Charged Engines including the V8 Infinity and other engines, We simply couldn't fault the new Extreme Valve Body no matter what we did to it (At time of print the valve body had been tested to 607Hp = 450Kw without failure to the transmission).