When I was a Nissan Service Advisor, I once had the Nissan Factory Rep tell me "Parts that the manufacturer doesn't put on a car don't cost anything to manufacture, engineer, or install, they never have to be stocked by the parts department, and they never cause warranty repairs."

While I do occasionally question the common sense of the Mitsubishi engineers, I don't question their abilities. I'm fairly certain that if the variable intake system didn't provide a benefit to the way the engine ran, they wouldn't have produced it.

95 Montero SR
3.8 MIVEC, Advance headers, 2 1/2" exhaust, Magnaflow muffler, OME shocks & rear springs, 2" body lift, 3" tank lift, 4.90s, TRE front locker, factory rear locker, Roger Brown Rock Sliderz, 315/75r16 (35") tires, Sport big brakes