Supersprint BMW E39 M5 / 540i / E38 740i Stainless Exhaust Manifold - LHDThe Supersprint Stainless Steel Exhaust Manifold for BMW E39 M5, E39 540i, and E38 740i (LHD) is one of the most effective upgrades available for unlocking additional horsepower and torque from BMWs V8 platforms. The factory exhaust manifolds on the E39 540i and E39 M5 were designed primarily for emissions compliance and mass production efficiency, not maximum performance. On later models, the primary catalytic converters are integrated directly into