Audi/VW 2.0T FSI & TSI Diamond Forged Pistons 9.0:1 82.50/83.0mm Bore

The Audi/VW 2.0L TFSI pistons are made by Diamond Racing USA and are designed to be used in all engine configurations with a 21.00mm pin. They are built as tough as can be to withstand the vigorous demands of racing. No matter how much boost pressure you are running or how high you are revving, these pistons will take it and ask for more! Check the individual features for your application below.

Product Features and Design

• 2618 Low-silicon / High expansion alloy for High HP/Boost applications
• Round skirt design with a bottom reinforcing band
• 3D under-crown milling to ensure minimal weight without compromising strength.
• 3D milling on piston crowns for ready-to-install finish
• Oversize valve pockets for larger than stock valves and clip cuts on the edge of the pistons
• Window milling reduces the piston's overall weight while maintaining its strength and structural integrity
• Lateral gas ports for better ring seal
• Offset pins for quiet operation
• Molly Skirt coating for friction minimization and skirt wear protection
• Premium 8620 series pins from 1018 mild steel

*Optional Tool steel H-13 alloy wrist pins available as an upgrade. Part number H8662250225C wall thick. 5.72mm.

Diamond Pistons

Diamond pistons are engineered with only one thing in mind: Winning races! They are manufactured in the USA from 2618 materials. Diamond racing company is known since the late 60s to produce the highest quality engine parts around.