APR T3100026 Stage III Turbo Upgrade for Audi B7 A4 2.0T

Achtuning is pleased to present the APR B7 A4 Stage 3 Turbocharger System. Now available for the B7 A4 2.0T FSI and our most powerful longitudinal application yet at 375hp and 352 lb ft of torque, APR's Stage 3 is the ultimate performance enhancement for your A4.

The APR 2.0T FSI Stage III delivers a powerful, refined, turnkey solution from the expertly recalibrated engine management system to the investment cast inconel exhaust manifold and upgraded FSI fuel injectors and fuel pump. Featuring the APR/Garrett Honeywell Ballistic Series GT2871APR Ball Bearing Turbocharger, the APR Stage III brings your A4 to 375 daily drivable horsepower and 352 pound feet of neck snapping torque.

The APR Stage III operates as if it were designed directly by Audi with flawless drivability and reliability. A solid idle and amazing part throttle operation takes the weekend trailer queen out of the highly modified aftermarket and provides luxury car daily driving during a trip to the office and pure, powerful, consistent performance while turning laps on the race track. Intense durability testing at the most demanding road courses in the country allowed an engineering solution that will perform lap after lap and commute after commute. APR, once again, has delivered unparalleled enhancement to Your driving experience!

The highlights of the kit include the following:

• MAF Housing
  APR developed a new MAF housing that is sized according to engine displacement and maximum power output. The new cast housing allows the proper metering of the additional airflow and to minimize pressure losses. The cast aluminum housing is CNC machined to exacting tolerances and powder-coated to inhibit corrosion. A honeycomb style flow straightener and airhorn is also added to prevent the MAF from seeing erroneous signals and to increase transitional airflow velocity.
• Turbo Compressor Inlet Hose
  APR uses a reinforced silicone hose to route the inlet air from the MAF housing into the compressor inlet of the turbocharger. This hose also has provisions for other connections, such as the stock crankcase vent hoses and the APR diverter valve adapter.
• APR Diverter Valve Adapter
  APR includes a billet CNC adapter that allows the stock diverter valve to be reused with the APR compressor inlet hose.
• Honeywell/Garrett Turbocharger
  Representing the latest in turbocharger technology, a Garrett GT2871R Ballistic series turbocharger is the only choice for this premium turbocharger system. APR is unique in that they deal directly with Garrett turbochargers rather than buying turbochargers through turbocharger supply houses. APR's engineering-house distributor status with Garrett turbochargers means that APR receives assistance from the Garrett on technical issues and work with Garrett engineers on specifying the optimal turbocharger for each application.
• APR Oil/Coolant Lines
  All APR oil and coolant feed and drain lines for the turbocharger are made to higher than OEM standards. As an example, the oil drain line includes a braided stainless line with pressure crimped fittings, billet adapters for the turbo and oil pan, new OEM gaskets, and stainless hardware.
• Compressor Outlet Hose
  This silicone hose directs air from the compressor outlet of the turbocharger to the cast APR compressor outlet pipe. The APR diverter valve adapter also connects to this hose, as well a boost signal line for the N75 boost control valve.
• High Pressure FSI Fuel Pump
The stock high pressure pump is incapable of pumping a high enough volume of fuel to support the FSI engine with even moderate mods, much less a large turbo kit. To rectify this, APR has developed a higher flowing fuel pump that eliminates this being a problem.
• APR FSI Fuel Injectors
  APR spent many hard hours sourcing the appropriate FSI injectors with the proper specifications to accommodate the increased fuel demand for the Stage 3. Solid idle, a good cold start and other drivability characteristics must be maintained with only a minimal loss of oem feel to be considered an APR Stage III Turbocharger System.
• Exhaust Manifold
  The Stage III exhaust manifold is investment cast out of Inconel, a high-temperature nickel alloy. The manifold was designed in CAD and optimized using computational fluid dynamics (CFD) software. What this means to the end user is the ultimate in performance and reliability.
• Cast Exhaust Downpipe
  From the turbocharger, the exhaust begins its travel out of the car through the 3" to 2.5" downpipe that is included with the Stage III kit. APR's stainless steel performance exhaust system connects at the oem catalyst location and is a perfect choice for use with the Stage III Turbocharger System.
• All Associated Plumbing and Hardware

T3100027 - This kit is for customers who already have an APR FSI Fuel Pump, which is REQUIRED with this upgrade.

NOTE:
The power increase with the APR Stage III kit for the 2.0T is substantial. It is highly recommended that brake and suspension upgrades are done to safely use the potential of this upgrade. It is also recommended that the stock engine internals be upgraded for power levels above 93 octane, as APR/Achtuning is not responsible for this type of damage to the engine.