i-Beam steel connecting rods 2.5L TFSI engines with chain (EA888) are designed for an extreme performance (275HP/Per CYL). This will increase the performance of your Audi TTRS/RS3. 

In order to optimally lubricate the piston pins and protect the engine parts from abrasion, the connecting rods come with an additional drilling  All JDY connecting rods are precisely angled and tested. Included are of course 3/8" ARP 2000 expansion bolts and the assembly paste. There are a few things to keep in mind during assembly, so we've summarized some information on how to tighten the connecting rod bolts correctly for you!

Diamond Pistons

The Audi 2.5L TFSI TT-RS pistons are made by Diamond Racing USA. 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

ZRP Custom Made Head Studs For 2.5TFSI EA855 EVO TTRS/RS3

This Kit was designed for drag racers or street racers, running on high-boost engines, that need more clamping force and tensile strength than the ARP2000 Stud Kit can offer. These are 15% stronger than ARP2000 and have a 55% increase in tensile strength over the OEM torque to Yield (TTY Bolts) !!

Due to many “head lifting” issues on Audi engines running in excess of 25 PSI, a stronger stud had to be custom-made to meet the demands of today’s top engine builders and racers alike.

These studs are made from vacuum-melted alloy steel with sufficient chromium and carbon to achieve the high hardness and superior strength Like most high strength, quench, and temper steels.

This material is easily contaminated and subject to stress corrosion. It must be kept well-oiled and not exposed to moisture. Recommended for applications boosting higher than 30 PSI.

No Modification to your VW Cylinder Head or Block is required as these are direct drop-in replacements for the OEM Head Studs. Troque specs:110NM in Three-time.

Note: The nuts and washers included in this kit still utilize premium grade 8740 alloy as only the stud is subjected to increased pressure Each kit includes a complete set of L19 head studs, nuts, and ARP Assembly Lubricant.

ACL Connecting Rod & Crank Bearings

• Racing bearing, ACL Race
• Extra coated
• Extra bore for the piston pin
• PN: 6M5577H-STD 5M5562H-STD

ARP2000 Block Studs

An absolute MUST for all engines that run with increased charge pressure! ARP is the market leader in this field and offers you stud bolts for the engine block made of 8740 chromoly steel with rounded thread. These are up to 30% stronger expansion steel than the stock bolts. With us, the kit comes complete with the side mounting bolts for the main bearing blocks. Here again, high-strength ARP bolts are used. Quality and safety are guaranteed!

ZRP custom-made head stud bolt Kit for the cylinder head for all 2.5L TFSI EA855Evo engines as in Audi RS3 8V & TTRS 8S 

• Audi A3 / S3 / RS3 8V -> 2.5L TFSI (EA855evo) DAZA | 400 PS
• Audi A3 / S3 / RS3 8V-> 2.5L TFSI (EA855evo) DNWA | 400 PS mit OPF
• Audi Q3 / RS Q3 F3 | BJ 2018 -> 2.5L TFSI (EA855evo) DNWA | 400 PS mit OPF
• Audi TT / TTS / TT RS FV/8S | BJ 2014 -> 2.5L TFSI (EA855evo) DAZA | 400 PS
• Audi TT / TTS / TT RS FV/8S | BJ 2014 -> 2.5L TFSI (EA855evo) DNWA | 400 PS 

Billet crankshaft seal for EA855 EVO engines, to avoid oil leakage OEM seal

Features:

• Reinforced CFW double lip Radial Shaft Seal - Simmerring®
• CNC billet parts 
• Titanium seal cover bolts
• Extra seal cover for a better seal
• CFW double lip shaaft seal