Properly cleaned and prepared services are essential to ensure precise port and polish modifications

P/N: 20-1970 (shown below) is compatible with the following fuel pumps:Walbro GSS342AEM 50-1200P/N: 20-1972 (shown below) is compatible with the following fuel pumps:Walbro F90000267Walbro F90000274Walbro F90000285

Spline-through-side-gear construction allows higher friction plate count

and results in mind

Installation Notes

N53 Combustion Chamber Upgrade Service BM_BS55_0HS_5642B6S Properly cleaned and prepared services5150 AutoSport Combustion Chamber Upgrade Service for BMW N53 Engines Please note that price is based on customer providing core. If you need help sourcing a core, please contact our sales team. Our CNC Cylinder Head Combustion Chamber Service is a precision machining process where the combustion chambers of an engine's cylinder head are reshaped and refined using Computer Numerical Control (CNC) technology, optimizing engine performance for street or