Bottom End Upgrade Package
This product was last offered at the strikethrough price on
05-01-2026
Product Details
Please Note: Only available for purchase and shipment within the United States
The 034Motorsport Bottom End Engine Upgrade Package contains the hardware components necessary to upgrade the EA839 2.9TT Twin-Turbocharged Engine found in the B9/B9.5 Audi RS4/RS5. The 034Motorsport Bottom End Engine Upgrade Package contains hand-selected products from the expansive 034Motorsport catalog, put together by the experienced 034Motorsport Engineering Team, to one comprehensive Bottom End Package for the 2.9 TFSI!
We're extremely passionate about the Audi EA839 Twin-Turbocharged platform. The 034Motorsport Bottom End Package was engineered to strengthen the EA839 and its bottom-end components and is designed to be paired with Dynamic+ Tuning and other 034Motorsport Engine Upgrades. Whether running the factory turbocharger or an upgraded TTE720, this package provides the durability and strength your engine needs to handle repeated abuse without skipping a beat.
With a long-standing history in the Volkswagen and Audi aftermarket industry, 034Motorsport is proud to collaborate with trusted partners like Pauter, Wagner Tuning, JE, and Cometic to bring innovative new components to the EA839 2.9TT Twin-Turbocharged market. These partnerships enable us to push the boundaries of performance, offering cutting-edge solutions for enthusiasts looking to take their builds to the next level.
Our package contains the hardware components needed to upgrade the EA839 2.9TT Twin-Turbocharged Engine found in the B9/B9.5 Audi RS4/RS5. The components were hand-selected from the expansive 034Motorsport catalog and assembled by the experienced 034Motorsport Engineering Team into one comprehensive package for the 2.9 TFSI!
To see full details of the products included, please visit the below-linked product pages.
034Motorsport Bottom End Engine Upgrade Package Contents:
- JE Forged Piston Upgrades for Audi EA839 2.9T Twin-Turbocharged Engines
- Pauter 4340 Chromoly Cross-Beam Connecting Rod Set, Audi EA839 2.9T Twin-Turbocharged Engines
- Wagner Tuning Pro Series Head Stud Set
- Wagner Tuning Pro Series Main Stud Set
- 034Motorsport MLS (Multi-Layer Steel) Head Gasket Set
- 034MOTORSPORT BOTTOM END ENGINE UPGRADE PACKAGE FEATURES
Wagner Main & Head Studs:
- Made of Ultra Clean Tool Steel.
- Rolled Threads to Achieve Best Possible Strength.
- Special Cone for Pretensioning and Best Possible Equal Load Distribution to the Entire Thread.
- Hexagon Drive for Easy Installation.
- Tensile Strength Beyond 1850 N / mm² (270,000 psi)
- Unlike OE Bolts, They Can Be Reused Over and Over.
- Pauter Connecting Rod Set
Pauter Cross-Beam Design Rod Set for Audi 2.9T Twin-Turbocharged Engines.
- Forged From 4340 CRMO, This Unique Cross Beam Rod Structure is Proven Extremely Strong and Reliable.
- Rated for 200Ft⋅Lb Torque Per Rod at The Engine
- Tapered Small End to Work with OE Pistons
- Sold as a Set of Six, Balanced End-to-End, Ready to Install
- 155mm Long / 22mm Wrist Pin
- E4340 Vacuum Melt Chromoly Forging
- CNC Machined to Precise Tolerances
- Accepts OEM Rod Bearings
- Heat-Treated to Rockwell C36.
- Full Coverage Shot Peened.
- Rods Supplied with ARP 2000 Bolts Rated at 220,000 PSI Tensile Strength.
- Rods feature aluminum-bronze wrist pin bushings standard.
JE Forged Piston Upgrade
- Stock Compression Ratio: 10.0:1
- Heavy Duty Wrist Pins for Extra Strength
- Forged from 2618 Aluminum Alloy
- All Piston Rings Included
- Euro Dish Piston Face
- Stock Bore Size: 84.5mm (3.327”)
- Note: JE Forged Pistons are Louder than Factory Pistons During Cold Start
- 034Motorsport MLS (Multi-Layer Steel) Head Gasket Set
Pair (Right and Left) Cylinder Head Gaskets for One Engine
- Manufactured for 034Motorsport by Cometic to 034Motorsport Specifications and Requirements
- 4 Layers, MLS (Multi-Layer Steel), Proprietary Cometic MLX Technology
- Embossed Outer Layers Meet the Demands of a Variety of Harsh Sealing Environments, Load Conditions, and Surface Finishes.
- Designed for High Boost and applications, Perfectly Suited To B9 2.9T Stage 2, 2+, and Beyond Applications.
- Features an Extra 'Stopper' Fold-Over Layer Providing a Torque Limiting Surface that Prevents Yielding of The Combustion Seal.
- Proprietary Temperature Coatings Along With Embossments Provide a Micro Seal for Fluids Against the Head and Block Surface.
- 85mm Bore
** These are 11mm head studs and will require machining of the block, heads, and head gaskets.
- 034202D004DSO
This Part Fits the Following Vehicles
| Make | Model | Submodel | Engine | Special Fitment Notes |
|---|---|---|---|---|
| Audi | B9 RS5 | Quattro | 2.9T | Use vehicle selector to confirm fitment |
This product is not eligible for Lifetime Replacement
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Return Process
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Please note: Refunds will be processed to the original payment method used on the order or to an in store credit, respective to the type of return that is made as well as any pre-existing arrangements with an ECS Tuning Customer Service Representative. In the event that multiple forms of payment were used, we will refund the value to an in store credit. In the event that a return label is provided, these charges may be deducted from the total refund you receive.
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Shipping Policy
Free Shipping On Orders $49 & Up
Items marked with a 'Free Shipping On Orders $49 and Up' logo may qualify for free standard economy ground shipping to the contiguous United States (48 states) for most orders with a value greater or equal to $49.00 USD. Oversized products and direct ship products are excluded from this offer unless otherwise noted.
Free Shipping
Items marked as 'Free Shipping' may qualify for free standard economy ground shipping to the contiguous United States (48 states). Oversized products and direct ship products are excluded from this offer unless otherwise noted.
The policies listed above are subject to change at any time without notice.
Lifetime Replacement
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Why You Should Shop From ECS Tuning
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Our distinct advantage lies in our passionate team and comprehensive support, offering expert advice and seamless service from selection to installation. Shopping with ECS brings exclusive perks, including our Lifetime Replacement Guarantee and free shipping on orders over $49, enhancing the value of every purchase. As a central hub for car enthusiasts, ECS Tuning fosters a rich community where ideas and experiences flourish, transforming us from a mere supplier into a platform where automotive dreams come to life.
Cancellation Policy
At ECS Tuning, we understand that plans can change. That's why we offer a flexible cancellation policy for our customers. You may cancel your order at any time before you receive the shipment confirmation. This policy is designed to provide you with peace of mind and the flexibility to make adjustments to your purchases as needed. Should you decide to cancel your order, simply reach out to our customer service team, and we will assist you with the process swiftly and efficiently.
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