Originally Posted by ///MbmC
///M1, unfortunately, I didn't do any pre and post dyno runs. The butt likes it anyhow.
It really does sound great. And I've been told it sounds even better on a drive by! I drive with the valves open mostly, except when I'm pulling into my neighbourhood at night.
If my results are any indication, you picked up about 10whp / 8wtq. And these results were dynoing the car straight off the lift, without any adaptation, so it is perhaps higher (with the valves closed it was still a gain, but about 2-3whp/wtq less than with the valves open). I'll play with the Dynojet WinPep software and post a graph shortly showing the true delta
2011 BMW E82 1///M: AW, ZPP+ZCV, HK, Apps; Akra CF+Valve control, MadDad mids, K&N, Forge FMIC, P3gauge, EuroTails, Tint, CF Mirrors+Spoiler+Roof+RevoZ diffuser, 10mm H&R, IND grills+gills, xCDV, LUX AE
2008 Audi B7 RS 4: Sprint Blue, Audi Exclusive Euro Interior, Premium+Titanium Package, EPL Tune, Stasis Ohlins MS coilovers, Milltek valved exhaust+DownPipes, Alcon BBK, Tint, ADR V1, Lidatek, Lamin-X, Strasse Forged SM7 3-piece concave wheels, 275/30/19 PSSs, Euro flat-bottom steering wheel, JHM SSK