Piston Kit, Toyota 86 Subaru BRZ, 4U / FA20 - Repacement for OE size Piston kit
MKS Custom design / Bigger Bore & 4.0 mm Shorter Pin Height
** Combination of Shorter Compression Height Pistons + Longer C-C Rods reduces friction between piston skirts and cylinder walls.
** You need +4.0 longer rod to use this piston kit.
 
X-Style Fornings
Bore 86.050mm (OE Bore w/ Horning)
CH : 28.80mm (OE -4.0mm)
Dome Volume :  +0.82cc
CR 12.5 : 1 (Target w/ Head chamber volume 37.2cc)
Anti-detonation Grooves