![Integrated Engineering Billet Steel Main Caps | VW · Audi | 1.8L Turbo I4 · 2.0L Turbo I4 [FSI] D5 A8 3.0L Turbo V6 The seal is spring energized](https://cdn.shopify.com/s/files/1/0635/0032/1015/files/IntegratedEngineeringBilletSteelMainCapsVW_Audi1.8LTurboI4_2.0LTurboI4_FSI.png?v=1694399884)
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The seal is spring energized to increase stregnth and provide constant outward pressure
All stainless hardware
factory flow issues become immediately apparent and restrict horsepower such as the factory stock air box and turbo inlet elbow
+19 AWHP & +20 AWFT-LBS gain over stock (APR Stage 1 93)
Sends sensor data in real-time to IE ECU calibrations
Integrated Engineering Billet Steel Main Caps | VW · Audi | 1.8L Turbo I4 · 2.0L Turbo I4 [FSI] D5 A8 3.0L Turbo V6 The seal is spring energizedWhen pushing your VW or Audi engine to the limits, a set of IE Billet Main Caps will provide a rigid foundation for your crankshaft, reducing main bearing wear. These main caps are in house CNC machined steel for a massive upgrade over the stock cast main caps. The stock main caps are cast and lack the rigidity required for a reliable high power build. We recommend upgrading to a set of IE Billet Main Caps when building a performance engine exceeding
