VW Audi EA113 1.8T Forged Pistons — Full Coating, 81/81.5mm, 9.0:1 CR, 20mm Pin

JA Modified forged piston set for VW/Audi EA113 1.8T (AGU, AEB, BAM, BEX, etc.). Available in 81mm (stock bore) or 81.5mm (+0.5mm oversize). Low 9.0:1 compression ratio optimized for high-boost turbo builds handling 300+ HP. 20mm wrist pin. Full coating: thermal barrier on crown + anti-friction skirt coating throughout. Set includes 4 forged pistons, ring set, and 4 wrist pins. Direct replacement for factory cast pistons on 1.8T 20V turbo engines.

JA Modified品牌大众奥迪EA113 1.8T（AGU、AEB、BAM、BEX等）锻造活塞组。81mm（标准缸径）或81.5mm（+0.5mm加大）可选。低压缩比9.0:1，为高增压改装发动机优化，承受300+马力。20mm活塞销。整体涂层：顶面隔热涂层+裙部全周减磨涂层。套装含4只锻造活塞+活塞环组+4根活塞销。1.8T 20V涡轮增压发动机原厂铸造活塞直接替换升级件。

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