Quote:
Originally Posted by KevinGS
So there's some drone, like ASD drone, with the valves 100% open? I guess that makes sense. Glad there's the option to use Sport Plus with the stock valve (partial opening) setting with the SST controller, as it sounds like that may occasionally be nice in some situations.
Installing mine soon once I have a little time. Studying up on the trunk install method.
|
Forcing the valves open 100% will cause some drone at lower engine loads at 1700-2000rpm, that's probably why BMW has the staggered valve opening based on engine load by default.
Putting the valves back to OEM control eliminates it though.