JE 297115S Piston BMW S54B32 9:1 (Single Piece Set) ymm_18 the system replaces the restrictive

the system replaces the restrictive OEM airbox with a significantly larger carbon fiber housing and enlarged turbo inlets

improved thermal stability and extended drain intervals (up to 30

automatic and manual models

Mandrel-bent T-304 stainless steel construction with bolt-on installation

this version features a flatter seat cushion with reduced side cushions

JE 297115S Piston BMW S54B32 9:1 (Single Piece Set) ymm_18 the system replaces the restrictiveDESCRIPTION: Piston Single, 2618, Inv Dome Dish, 3. 425 Bore, 1. 271 CD, 0. 827, Pin Dia, Set of 1. Bore (in) 3. 425 Bore (mm) 87. Top Compression Ring Thickness 0. 0400 Second Compression Ring Thickness 0. 0480 Oil Ring Thickness 0. 111 Forging Type FSR Volume (cc) 29. 30 Series JE Pistons Piston Head Type Inv Dome Dish Pin Diameter (IN) 0. 827 Compression Height 1. 271 Make BMW Wrist Pin Style floating or press fit Floating Wall Type CHAMFERED Wall