S2000 Vtec problem

[jbhondatech]

restrictive exhauyst wont cause vtec not to engage

I have seen this problem before, when vtec engages on boosted S2000 motors and it feels as if you are hitting a rev limiter the problem is exhaust gas back pressure. This is a common problem with log style manifolds in conjunction with a stock or restrictive exhaust. I would need to see the car to be 100% sure this is occuring.