JE Pistons Audi TT RS 2.5 TFSI 5-Cyl Ultra Series 82.5mm Bore Piston Kit (Single)

If you're building a high-performance 2.5L TFSI engine for your Audi TT RS, this Ultra Series piston kit from JE Pistons is a solid choice. These aren't your average pistons; they're forged from 2618 aluminum and packed with features typically found only in custom builds, all designed to handle the extreme cylinder pressures that come with serious horsepower and boost.

JE uses their proprietary Aligned Grain Flow forging process, which maximizes the material's tensile strength to stand up to the rigors of boosted applications. You'll also find a thermal barrier crown coating that reflects heat back into the combustion chamber, helping to keep piston temperatures down and improve exhaust scavenging. The skirt coating reduces friction and wear, making for a quieter engine, especially when cold, and the lateral gas ports help maintain a strong ring seal even at high RPMs and under heavy boost. Plus, they come with strong, thick-wall wrist pins from Trend Performance, built for high-performance demands.

This kit includes a single piston with an 82.5mm bore and an inverted dome/dish design, intended for a 9.50:1 compression ratio. Remember, these pistons are made 100% in the USA, but they are not CARB approved and cannot be shipped to California.