The VTT B58/S58 Head Port Block-Off kit is designed to either seal off the factory head ports used by the OEM low-side PCV system. These ports in the cylinder head utilize engine vacuum to evacuate crankcase gases, but in the process, can allow oil to enter the intake manifold, leading to valve carbon buildup and other performance issues over time. The Block-Off kit offered by VTT completely seals the factory head ports to prevent oil intrusion and unwanted vacuum leaks. This kit does NOT require any tapping, meaning no metal to get into the engine, etc. You simply tap the plugs into place. Key Features Eliminates oil draw-through into the intake manifold Prevents carbon buildup on intake valves Utilizes precision-machined plugs for boost sealing Fully reversible — Block-offs can be removed if needed No tapping is required. Easy install, by tapping the blocks into place.
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Engineered for those who demand total control over their PCV system, the VTT Screw-In Oil Cap Adapter provides a robust solution for crankcase ventilation.
Active Autowerke’s Aflow Catted Downpipes provide a "no-compromise" solution for the G-body enthusiast who wants high-flow performance without the drawbacks of a track-only "catless" setup. These downpipes feature advanced metallic high-flow catalysts that satisfy onboard diagnostic requirements, meaning you can enjoy increased power without the headache of a Check Engine Light (CEL). By utilizing premium 304 stainless steel and a low-restriction design, these pipes are built to withstand the intense thermal cycles of a twin-turbo V8 while delivering a deep, aggressive exhaust note. This variant is a true bolt-on upgrade that preserves the daily driveability and luxury experience of your BMW while significantly improving its performance ceiling. Key Features: No CEL Operation: Engineered to work with factory emissions monitors for a dashboard-clear experience. Streamlined Exhaust Path: Mandrel-bent 3" piping with minimal bends for smooth, high-velocity exhaust gas flow. Precision Fitment: Developed through extensive R&D to provide a factory-like bolt-on installation. Hand-Made in the USA: Fabricated in-house at Active Autowerke’s Miami facility to ensure surgical quality control. Vibration Resistance: Robust TIG welding and heavy-duty brackets ensure longevity even under aggressive driving conditions. Specifications: Primary Material: Brushed 304 Stainless Steel. Inlet/Outlet: Precision cast V-band inlet and direct-fit outlet. Flow Rating: Significantly higher CFM than restrictive factory ceramic converters. Installation: 100% Bolt-on; no cutting or welding required. Finish: Natural Stainless. Lead Time: Typically custom made-to-order (Approx. 2-week build time).
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The VTT B58 Head Port Check Valve Kit is designed to convert the factory head ports used by the OEM low-side PCV system. These ports in the cylinder head utilize engine vacuum to evacuate crankcase gases, but in the process, can allow oil to enter the intake manifold, leading to valve carbon buildup and other performance issues over time. VTT's Billet Check Valve kit converts the head ports into a robust internal PCV system using precision-engineered check valves. These one-way valves allow vacuum to function as intended while blocking boost pressure from entering the crankcase or charge tract.
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Active Autowerke brings motorsport technology to street-legal applications with the B58N Aflow Catted Downpipe. This system features a high-efficiency 400 Cell Per Square Inch (CPSI) Active Aflow catalytic converter that is EPA registered and 49-state legal. By utilizing proprietary precious metal loading, this catalyst reaches operational efficiency within just 9 seconds of startup, ensuring the vehicle remains fully OBD2 compliant. The furnace-brazed stainless steel substrate ensures extreme durability under high-boost conditions. This downpipe provides the flow characteristics of a race pipe while effectively neutralizing harmful emissions and odors, protecting both the environment and the vehicle's passengers. Key Features Active AFlow High-Flow Catalyst: 400 CPSI substrate designed to provide maximum flow while maintaining EPA compliance. Rapid Light-Off Time: Reaches operational efficiency within 9 seconds, ensuring OBD2 readiness monitors remain active. Forced Induction Optimized: Specifically engineered for high-boost applications with zero loss in horsepower. Extreme Heat Resistance: Built to withstand internal exhaust gas temperatures (EGTs) up to 1500°F. Durable Construction: Substrate is furnace-brazed to the mantle, preventing the internal core from shifting or breaking under heavy vibration. Specifications Vehicle Fitment: 2025+ BMW B58N Models (X3-40i, X3-M50i, X5-40i, X7-40i, 540i, 640i, 740i). Cell Density: 400 Cells Per Square Inch (CPSI). Catalyst Material: 304 Stainless Steel Substrate. Compliance: EPA Registered / 49-State Legal (Not CARB registered for California). Warranty: 5-Year/50,000-Mile on shell/ends; 2-Year/25,000-Mile on the catalytic core (Warranty void with "burble" tunes).
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If you are fabricating a custom single-turbo kit or upgrading your current setup, the VTT-FAB-062 is an essential component for a clean and reliable oiling system.
The Vargas EWG Actuator Bracket is the definitive solution for enthusiasts looking to merge BMW’s advanced factory EWG control with the high-performance capabilities of Garrett G-Series turbochargers.
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For the owner of a late-model BMW who demands a balance of high-end performance and sophisticated daily drivability, Active Autowerke offers the B58N Gen-3 GESI Catted Downpipe. Built with a focus on long-term reliability and environmental standard compliance, this downpipe features an EPA-registered GESI G-Sport catalytic converter. These 400-cell metallic substrates are furnace-braised to the mantle, offering outstanding resistance to thermal shock and vibration. The industrial-grade 304 stainless steel construction ensures the downpipe will withstand years of heat cycles without degrading. This system is a true "plug-and-play" solution that enhances the B58's deep, throaty exhaust note while keeping emissions levels in check and the dashboard clear of errors. Key Features: 49-State Legal: Features an EPA-registered catalyst that is fully OBD2 compliant (excludes vehicles registered in CA). Superior Durability: Constructed entirely from heavy-duty 304 stainless steel with a brushed finish. Proprietary Catalyst Loading: Precious metal technology ensures the reduction of harmful emissions and eliminates raw fuel odors. OEM+ Fitment: Meticulously test-fitted on a dedicated fixture to guarantee a perfect seal with factory turbo and exhaust connections. Comprehensive Kit: Available with an optional turbo flange gasket to ensure a fresh, leak-free installation. Specifications: Type: Signature Series Valved GESI Catted Downpipe. SKU: 11-062N. Catalyst Rating: Rated for high-output applications while maintaining operational efficiency. Hardware: Includes lower mounting brackets and necessary flex section. Vehicle Fitment (US Models Only): * 2025+ BMW X3 40i / X3-M50i (G45) 2025+ BMW X5 40i (G05 LCI) / X7 40i (G07 LCI) 2025+ BMW 540i (G60) / 740i (G70)
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The VTT-FAB Billet MAP Sensor Bung is the definitive choice for tuners and fabricators seeking a reliable mounting solution for B48, B58, and S58 platforms.
The Universal DCS System is the ultimate boost control solution for any vehicle, regardless of whether it came with factory electronic wastegate control.
Engineered for precision and durability, the VTT-FAB-040 B58 Block-Off Flange is the definitive solution for managing oil and coolant paths during fabrication.
The VTT 6-Bar MAP sensor kit provides the necessary overhead to monitor boost levels with a linear voltage scale that makes software calibration straightforward.
The VTT Billet B58 HMM Delete is for enthusiasts who want to remove the bulky, plastic factory coolant unit in favor of a robust, motorsport-oriented setup.
