19th June 2012, 18:32
Company Representative for Vivid Racing
Join Date: Mar 2008
Thanked 27 Times in 25 Posts
Originally Posted by valhall
Maybe a stupid question, but what does the vacuum actuated exhaust valve do? is it something to do with u can change between sport or race sound? Do you make the changes from inside tha car?
Have a good day
Those valves do not make it go from race to sport, no. The basic function of the valves is when you are at low RPM, they are in the closed position, and increase the low end torque, then when in higher RPM's and/or WOT throttle, it goes open to increase HP. It is not activated by anything inside the car. I can't speak directly for this car as I haven't had my hands on one yet, but most activate on a certain RPM, throttle position, or a combination of both.
Adam @ Vivid Racing
Ph 480-966-3040 ext 248
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