Description
4R44E / 4R55E / 5R55E Boost Valve and Sleeve Kit, Superior K037.
This Steel Series replacement boost valve & sleeve kit gives you a perfectly dialed in ratio slightly higher than the stock valve.
This new valve helps eliminate all the problems associated with a worn out stock aluminum valve. Such as low line pressure, softer shifts and cross leaks. As with all Superior boost valves this valve is made out of 100% hardened steel & made in the U.S.A.
