S58 Port Injection Kit For BMW G87 M2, G80 M3, G82 M4, G83 M4, X4M (F98), X3M (F97)The Precision Raceworks S58 Port Injection kit with stock manifold compatibility is Exactly what the new G80 M3, and G82 M4 guys have been waiting for! Safely add fuel to your S58 engine and get ready to hold on! This kit is capable of providing supplemental fueling to all BMW's equipped with the S58 engine so that you can push the limits without the need for purchasing an expensive custom manifold. This kit integrates seamlessly into your car like it