Although log-style or simple unequal-length turbo manifolds used by the OEMs can ... According to Geoff, "Our twin-scroll turbo kits have a higher average cylinder pressure and turbine efficiency ...

Jon Volk is a well-known maker of custom exhaust manifolds for high-horsepower BMWs. Watch him work his design magic and cook ...

Unlike many turbo kits that require authorized dealers for ... discharges its exhaust pulse through the length of the manifold. A log-style manifold design works much differently than a collector ...