MY FRIENDS 2000 GSRs VTEC ISNT ENGAGE SOMETIMES WE DRIVE IT IN THE MORNING AND WHEN THE CAR HAS SAT FOR AWHILE ITS COLD. THE CARS SOUND SOUNDS MUFFLED AND VTEC WONT KICK IN TILL THE TEMP GOES UP. SOMETIMES WE NOTICED THAT WHEN HE GETS THE RPMS WHEN RUNNING IT HARD GETS TO 7000 THE CAR SEEMS LIKE HE IS PUSHING HIS LIMITS. IT SOUNDS FUNNY.