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Product Description

Subaru Impreza EJ20 Mahle Forged Pistons And RCM/Cosworth Head Gaskets

THESE PISTONS ARE TRIED AND TESTED BY SOME SERIOUS ENGINE BUILDERS PUSHING THE LIMITS OF RELIABILITY AND HAVE REACHED 600 BHP WITH THIS EXACT PISTON

THE MAHLE BRAND PISTON IS WELL KNOWN FOR ITS PISTON TECHNOLOGY AND IN THIS CASE THEY HAVE USED THEIR KNOWLEDGE FROM FORMULA 1 ENGINE TECHNOLOGY TO PRODUCE A PISTON WITH SOME UNIQUE FEATURES
FORGED FROM A HIGH SILICON 4032 ALLOY FOR REDUCED EXPANSION

VERY LIGHT WEIGHT ONLY 345 GRAMS AS ARE ALL FOUR
LOW FRICTION WASTED SKIRT AND COATED FOR HIGH RPM RELIABILITY

PRESSURE BALANCE GROOVE BELOW TOP RING--DESIGNED TO BALANCE THE PRESSURE ON THE TOP COMPRESSION RING AND THERE FOR RESTRICTING BLOW BY AND POWER LOSS
FORCED GUDGEON PIN LUBRICATION VIA THE OIL RING DRAIN HOLES--KEEPING THE PIN WELL OILED AND COOLED--THIS IS ESSENTIAL FOR MAJOR BHP

THEY CAN AND HAVE BEEN USED ON ALL EJ20 TURBO VAIRIANTS FROM 1992 TO 2005--IMPREZA OR LEGACY--REGARDLESS OF OM PISTON CROWN DESIGN

THESE FORGED MAHLE PISTONS ALONG WITH THE RCM/COSWORTH GASKETS WE WILL SUPPLY WITH THEM-WILL GO TO 500 BHP AND MORE--DEPENDING ON THE CRANK-RODS AND HEAD BOLTS USED AND MORE IMPORTANT THE FUELING AND IGNITION TIMING ETC

IN SUMMARY , 4 FORGED MAHLE PISTONS , RINGS , PINS AND A PAIR OF MULTI-LAYER STEEL GASKETS--A DIRECT REPLACEMENT FOR ALL EJ20 TURBO ENGINES INCLUDING VERSION 9 AND SPEC C VVC ENGINES--EXCELLENT VALUE FOR MONEY AND TWO TRUSTED BRANDS

PISTON SIZES AVAILABLE ARE:-
STANDARD 92.0 mm
92.5 mm
93.0 mm

GASKET SIZES AVAILABLE IN THIS KIT ARE:-
ADVANCED AUTOMOTIVE 0.6 mm
RCM 0.78mm
RCM 1.1mm
RCM 1.5mm

COSWORTH 0.78 mm
COSWORTH 1.1mm
COSWORTH 1.5mm

Customer Reviews

Mahle Forged Pistons RCM Or Cosworth Head Gaskets Subaru Impreza P1 WRX RA