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Old 11-05-2003, 09:36 AM   #6
Scooby Newbie
Member#: 36130
Join Date: May 2003
Location: Ostrava, Czech Republic. Europe
2002 WRX


Originally posted by 1 Lucky Texan
At the very least I think you should get a refund on the new pistons. The reason the stocks have a slightly offset wrist pin is to reduce piston slap! I do agree a longer/different skirt design might do the same. However this all points to the same conclusion. Your new pistons are poorly designed for your application.

1 Lucky Texan
Why produced bad pistons for EJ 20 ?

they wrote

ARIAS PISTONS, the leader in sport compact pistons, now offers Subaru WRX piston kits for the EJ20 engine. Forged from high-tensile billet aluminum, ARIAS PISTONS feature fully machined external features for maximum strength and minimum weight. Designed for extreme street or race, turbo or nitrous applications. These shelf-stock kits come complete with 8.5:1 compression ratio .50 mm oversize pistons, case-hardened wrist pins, severe-duty rings and pin locks
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