Tag: Manthey Racing
Manthey’s Porsche 911 GT3 Cup MR 30 Gets a 4.2-Liter Flat-Six
Manthey’s Porsche 911 GT3 Cup MR 30 pairs a 552-hp, 4.2-liter flat-six with revised cooling, aerodynamics and suspension. Its companion Cayman MR 30 follows a different path, improving an existing engine package through lighter components and chassis development.
