rocker shafts

Upgraded outer CV internals using a reinforced aerospace-grade set

They are designed to replace BMW part #11241406978 and #11241405890 for the BMW S62 engines with a 141

are exclusively designed for BMW N55 and S55 engines

What is the difference between FPD-R and FPD-XR

Garrett GTX3076R GEN II Turbocharger Exhaust Housing:VBand - 1.01 A/R rocker shaftsGarrett GTX3076R GEN II Turbocharger Horsepower: 400 750 HPDisplacement: 1. 8L 3. 0LMax Speed: 145,000 RPM Key Features: Enhanced GEN II Aerodynamics Up to 20% more horsepower than GEN I 58mm Compressor Wheel Optimized for maximum efficiency Fully Machined Components Inlet, outlet, and ported shroud for precision High Flow Compressor Housing Designed for increased airflow Dual Ceramic Ball Bearings Improved response and reliability Speed Sensor Port