JXB Performance Cylinder On Demand Deactivation Solenoid Delete Plugs | C7 · D4 | 4.0L Turbo V8 E71 X6 35i 3.0L Turbo I6 [N54] Optimized tuning of the intake

Optimized tuning of the intake manifold runner lengths

It flexes a great amount under load

IE H-beam Connecting Rods are a great upgrade over weaker factory units

the access panel for the air filter features a series of louvres designed to deliver a completely unrestricted supply of air to the intake for any horsepower level

JXB Performance Cylinder On Demand Deactivation Solenoid Delete Plugs | C7 · D4 | 4.0L Turbo V8 E71 X6 35i 3.0L Turbo I6 [N54] Optimized tuning of the intakeThe COD system is a weak point in the 4. 0T. The lobes for each cylinder slide on a spline on the camshaft and over time wear and get stuck. If this happens, the car will be go to limp mode and run very poorly. Many aftermarket tuning companies already disable the COD system. This kit allows you to go a step farther and completely remove the solenoids and plug their holes. Doing this saves 2. 5 lbs, and if you remove the wires as well, makes spark