The stock SR20VE lower lobes start loosing power at 4500rpm... the car will see a gain on power and even more important on TORQUE if the VVL kicks in between 4600 and 4800, after that... if you act...
Got my manifold and turbine housing back today, had it coated Black velvet.......
Manifold....
http://i531.photobucket.com/albums/dd354/MADTEC/PULSAR%20GTI-R/Pulsar%20-%20Engine/2013-02-08000642_...