Fits Audi RS3 and TT RS (2.5L) models. This Mahle MS Piston Set is engineered to meet the extreme demands of the Audi five-cylinder engine, providing the structural integrity required for high-output performance builds. Every piston is precision-machined to ensure exact tolerances for reliable ring sealing and thermal management.

• Bore Diameter: 82.50mm
• Compression Height: 29.6mm
• Stroke: 92.8mm
• Rod Length: 144mm
• Wrist Pin Diameter: 22mm
• Piston Volume: -5.0cc
• Weight: 322g per piston
• Compression Ratio: 10.0:1
• Manufacturer Series: M142P

This kit includes a complete set of five pistons with pins, specifically balanced for the 2.5L engine configuration.

Fits Audi TT RS with the 2.5L TFSI 5-cylinder engine.

JE Pistons Ultra Series forged pistons are engineered to withstand the extreme cylinder pressures and heat generated by high-boost, high-horsepower 2.5 TFSI builds. Utilizing JE's proprietary Aligned Grain Flow forging technology, these pistons provide superior tensile strength compared to standard forged components, making them a critical upgrade for competitive racing and forced induction applications. Each set is manufactured 100% in the USA to exact tolerances for the Audi 5-cylinder platform.

• Manufacturer Part Number: 367847
• Aligned Grain Flow: Proprietary forging process that optimizes material strength for high-stress environments.
• Thermal Barrier Crown Coating: A ceramic-based coating that reflects heat into the combustion chamber to lower piston temperatures and improve scavenging.
• Lateral Gas Ports: Ensures a positive ring seal at the top compression ring during high-RPM and high-boost operation.
• Skirt Coating: Reduces friction and wear on cylinder walls while minimizing cold-start noise.
• Heavy-Duty Hardware: Includes premium thick-wall wrist pins manufactured by Trend Performance in the USA.
• Optimized Pin Oiling: Enhanced lubrication channels for reduced friction and heat at the small-end and pin bores.
• Specs: 83mm bore size, 5-cylinder kit.

Engineered for the extreme cylinder pressures of high-boost 5-cylinder builds, the JE Pistons Ultra Series kit (MPN 367846) is designed specifically for Audi 2.5L TFSI engines. These pistons utilize proprietary Aligned Grain Flow forging technology, which optimizes the internal grain structure of the aluminum to provide the tensile strength required for high-horsepower racing applications.

• Aligned Grain Flow Technology: Proprietary forging process that maximizes material strength and durability under stress.
• Thermal Barrier Crown Coating: Ceramic-based coating reflects heat into the combustion chamber to lower piston temperatures and improve exhaust scavenging.
• Lateral Gas Ports: Enhances ring seal at the top compression ring to maintain power during high RPM and high-boost scenarios.
• Skirt Coating: Reduces friction and wear on cylinder walls while dampening operating noise, particularly during cold starts.
• High-Strength Wrist Pins: Includes premium thick-wall wrist pins manufactured by Trend Performance in the USA.
• Optimized Pin Oiling: Improved oiling passages keep the pin, pin bores, and small-ends lubricated to prevent heat-related wear.

This 100% USA-made kit features an 82.5mm bore and includes five forged pistons, heavy-duty wrist pins, and high-performance ring sets.

Designed specifically for the Audi TT-RS, this JE Pistons forged piston kit features an 83mm bore and an -8.1cc dish volume to handle the high thermal and mechanical loads of performance racing. Each piston is 100% engineered and machined in the USA from high-tensile 2618 aluminum alloy, ensuring the structural integrity required for forced induction and high-horsepower applications.

• Forged Side Relief (FSR): Lightweight forging design reduces friction and power loss with a narrower skirt and shorter wrist pin without sacrificing strength.
• Accumulator Groove: Machined to collect residual combustion gases, reducing pressure between the top and second ring to minimize ring flutter and maintain a consistent seal.
• Advanced Skirt Coating: Reduces friction and wear on both the piston skirts and cylinder walls, contributing to quieter operation and increased longevity.
• Complete Installation Kit: Includes a set of five pistons, JE Pro Seal premium piston rings, high-quality wrist pins, and wire locks.
• Manufacturer Part Number: 337967