IS-F Engine Technology
IS-F Engine Technology
Found this and found it interesting, so just in case anyone else may be:
http://www.lexus.com/models/ISF/features..._Story.pdf
Quite interesting bit of info that Terry, the gen 7 celica uses an airbox with the same type of system, (apart from it having a single intake) but does have the same type of actuation unit built in to quieten the engine down at lower revs? Clever bit of stuff yet quite a simple idea :thumbup1