Fits 2003-2007 Ford Super Duty and Excursion models (6.0L).

The Sinister Diesel Intake Elbow replaces the restrictive factory unit with a high-flow, mandrel-bent design that significantly reduces turbulence. By streamlining the air path into the intake manifold, this elbow helps improve throttle response and manage Exhaust Gas Temperatures (EGTs). Engineered for durability and performance, it features a precision-machined mounting flange to ensure a leak-free seal against the manifold.

This specific model is designed without bungs, offering a clean, streamlined look for owners who do not require additional ports for boost gauges, nitrous oxide, or methanol injection nozzles.

• Mandrel-bent tubing for maximum airflow and reduced restriction
• Signature Sinister Blue powder coat finish for superior corrosion resistance
• Direct bolt-on replacement for the factory OE elbow
• Clean, no-bung design for simplified installation
• Heavy-duty construction to withstand high boost pressures

Fits 1998.5-2002 Dodge Ram (5.9L).

The Sinister Diesel Intake Elbow is designed to replace the restrictive factory component, opening up the induction path for your 5.9L Cummins engine. By streamlining the transition from the intercooler piping into the intake manifold, this elbow reduces air turbulence and helps maintain consistent boost pressure. This improved efficiency leads to better throttle response and can help in managing Exhaust Gas Temperatures (EGTs) during heavy towing or high-performance use.

• High-flow mandrel-bent design for maximum air volume and velocity
• Precision-machined mounting plate for a secure, leak-free seal
• Durable Sinister Blue powder-coated finish for corrosion resistance
• Direct bolt-on installation using factory mounting points
• Helps reduce EGTs and improve turbo spool-up

Fits 2003-2007 Dodge Ram trucks equipped with the 5.9L Cummins diesel engine.

This Sinister Diesel intake elbow is engineered to replace the restrictive factory component, providing a larger, smoother path for pressurized air to enter the intake manifold. By reducing turbulence and increasing air volume, this upgrade helps improve throttle response and can assist in lowering exhaust gas temperatures (EGTs) under load.

• Direct replacement for the factory 2003-2007 5.9L intake elbow
• Signature Sinister Blue powder-coated finish for durability and corrosion resistance
• Designed to optimize airflow into the intake manifold
• Helps improve engine efficiency and throttle response

Fits 2001-2004 Chevrolet Silverado and GMC Sierra 2500 HD/3500 (LB7 Duramax) equipped with S300 or S400 single turbocharger configurations.

The factory LB7 Duramax Y-bridge is a notorious bottleneck that limits intake efficiency and power potential in high-performance builds. The Wehrli Custom Fab (WCFab) 3-inch High Flow Y-Bridge eliminates this restriction by providing a larger, more direct air path to the intake runners. Specifically designed for custom fabrication and aftermarket turbo setups, this bridge bolts to the factory intake runners and features a 3-inch bead-rolled connection at the inlet for secure plumbing.

Construction features a 14-gauge aluminum neck TIG-welded to a CNC-machined billet aluminum center section and flanges for maximum strength under boost. This kit includes critical components for a professional installation, including an FPRV block-off kit to provide the necessary clearance from the bridge to the fuel distribution block.

• Material: 14-gauge aluminum neck with CNC-machined billet aluminum flanges
• Construction: Hand-built TIG-welded design
• Ports: Integrated MAP sensor bung and 1/8" NPT accessory port (for boost gauge or sensor)
• Clearance Requirements: Requires minimum T4 pedestal height of 5" for S300 turbos or 6" for S400 turbos
• Finish: Raw aluminum (requires painting, polishing, or powder coating before use to prevent oxidation)
• Includes: 3" silicone boot, stainless steel T-bolt clamps, MAP sensor bracket and seal, new O-ring flange seals, and FPRV block-off kit
• Origin: Made in USA
• MPN: WCF100615-RAW

Note: This is not a direct OEM replacement and is intended for custom turbocharger installations.

Fits select 2001-2004 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 models (6.6L LB7 Duramax).

The WCFab High Flow 3-inch Complete Y-Bridge Kit is engineered to resolve the primary airflow restrictions in the LB7 intake tract. This kit replaces the narrow factory Y-bridge and restrictive cold-side intercooler pipe with a full 3-inch system, increasing airflow by up to 50% over the OEM components. By streamlining the path from the intercooler outlet to the engine, this kit significantly improves throttle response and turbo spool-up.

Designed for versatility, this fabricated billet Y-bridge is compatible with the factory IHI turbocharger as well as aftermarket drop-in IHI-style chargers. The kit also eliminates the angled OEM intercooler boots, which are known failure points under increased boost. Every component is finished in a durable WCFab Red powder coat for long-lasting corrosion resistance and a custom look.

• 3-inch Fabricated Billet Y-Bridge
• 3-inch Passenger Side Intercooler Pipe (14g Mandrel-Bent Aluminum)
• Includes Fuel Pressure Relief Valve (FPRV) Block Off Kit for bridge clearance
• MAP Sensor Seal and Heavy-Duty Hold Down Bracket
• High-Temp Silicone Boots and Stainless Steel T-bolt Clamps
• New O-Ring Bridge Flange Gaskets included
• Compatible with factory and drop-in IHI turbos
• Made in the USA
• Manufacturer Part Number: WCF100693-RED

Fits 2006-2007 Chevrolet Silverado and GMC Sierra 2500 HD/3500 models equipped with the 6.6L LBZ Duramax diesel engine.

The factory Y-bridge on the LBZ Duramax is a notorious failure point; its two-piece slip-fit design is prone to blowing apart under high boost levels, leading to significant power loss and poor drivability. The Wehrli Custom Fab (WCFab) High Flow 3" Y-Bridge Kit solves this with a robust, bolt-together two-piece bridge that provides a secure, leak-free sealing surface. This kit streamlines the intake tract with a full 3-inch diameter from the intercooler pipe connection to the engine, resulting in a 36% improvement in airflow over the stock configuration.

Constructed with mandrel-bent tubing and CNC-machined billet flanges, this kit maintains compatibility with the factory grid heater and EGR connection controls. It is a direct bolt-on upgrade that requires no additional tuning or vehicle modifications, making it an ideal solution for both stock trucks and high-performance builds using emissions-compliant tuning.

• WCFab Signature 3" Two-Piece Y-Bridge (Gloss Black finish)
• 3" Mandrel-bent upper intercooler crossover pipe
• 3" Lower intercooler pipe
• 36% increase in airflow over OEM intake
• Compatible with OEM lower passenger side intercooler pipe
• Includes high-temp silicone boot and stainless steel T-bolt clamps
• Includes MAP sensor seal, O-ring seals, and EGR/grid heater hardware
• Made in the USA
• Manufacturer Part Number: WCF100163-GB

Fits 2011-2016 Chevrolet Silverado and GMC Sierra 2500/3500 HD (6.6L Duramax LML).

The Sinister Diesel LML Intake Bridge is designed to replace the restrictive factory cast aluminum piping. By utilizing larger diameter 6061 aluminum tubing with precision mandrel bends, this bridge optimizes airflow after the throttle valve and heater. The increased internal volume and large radius bends significantly decrease intake restriction, resulting in improved turbo spool and overall engine performance.

Built for durability and a precise fit, this intake bridge features fully TIG-welded construction and CNC-machined billet aluminum flanges. It is finished in Sinister Diesel's signature high-gloss blue powder coat for superior corrosion resistance and a clean engine bay aesthetic.

• Precision mandrel-bent 6061 aluminum tubing
• Fully TIG-welded construction
• CNC machined billet aluminum flanges
• Optimized airflow for improved turbo response
• Signature Sinister Blue powder coated finish
• Includes blue anodized aluminum resonator block-off plate
• Manufacturer Part Number: SD-INTEL-LML

Includes: (1) Sinister Diesel Intake Bridge, (1) Resonator Block-Off Plate, and all required installation hardware.

Fits 1999-2003 Ford F-250 and F-350 Super Duty models (7.3L Powerstroke).

The Sinister Diesel Intake Elbow (SD-INTEL-7.3-BK) is a direct-fit performance upgrade designed to replace the restrictive factory cast unit. By utilizing larger diameter CNC mandrel-bent aluminum tubing, this elbow significantly reduces intake restriction, allowing for faster turbo spool and improved airflow to the cylinders. The robust aluminum construction and precision-machined billet base plate are specifically engineered to handle higher boost levels than the stock components can sustain.

Each kit is finished in the signature Sinister Blue powder coat for a durable, high-performance look. This comprehensive upgrade includes a Sinister Diesel high-temperature silicone boot kit and all necessary hardware for a clean installation into the factory mounting locations.

• Lightweight and durable mandrel-bent aluminum construction
• Fully TIG-welded for maximum structural integrity
• Precision CNC-machined billet aluminum flanges ensure a leak-free seal
• Sinister Blue powder-coated finish for superior corrosion resistance
• Includes Sinister Diesel high-temp 7.3L silicone boot kit and hardware
• Direct-fit replacement for OEM intake piping
• Manufacturer Part Number: SD-INTEL-7.3-BK

Fits select 2021-2026 Ford F-150 and Expedition models (V6-3.5L).

K&N Inlet Boost Tubes are designed to maximize turbocharger efficiency by replacing the restrictive factory tubing between the air intake and the turbos. By smoothing the airflow path and removing factory bottlenecks, these tubes allow for faster spooling and more consistent power delivery across the RPM range. Engineered for a precise fit, they bolt directly to factory mounting points and provide a noticeable performance upgrade when used with either the stock air box or a K&N performance intake system.

• Replaces restrictive factory inlet tubes to increase airflow
• Designed for faster turbocharger spooling and improved throttle response
• Durable construction to withstand boost pressure and engine bay heat
• Includes all required hardware for a complete installation
• Manufacturer Part Number: 63-2621
• Fitment Engine: V6-3.5L

Fits 2008-2018 Dodge/Ram 2500 and 3500 trucks (6.7L Cummins).

When upgrading to a high-flow intake and open grid plate on the 6.7L Cummins, the restrictive factory grid heater is removed to maximize airflow. The BD Diesel X-Flow Air Intake Heater Kit (MPN 1041563) allows you to maintain the performance benefits of an open plenum while restoring the heating capability required for quick, clean, and reliable cold-weather starts.

This kit is specifically engineered to mount into BD X-Flow components and connects directly to the stock grid heater wiring, ensuring a seamless integration with your vehicle's factory electrical system.

• Aids in cold-weather ignition and reduces smoke during startup
• Maintains high-flow performance when used with intake grid plate deletes
• Connects to the factory grid heater terminal and wiring
• Designed specifically for BD Diesel X-Flow series components

Technical Compatibility:

• Requires BD X-Flow Intake Horn (P/N 1041560, 1041561, or 1041566)
• Requires BD Intake Open Grid Plate (P/N 1041562 or 1041564)

Fits 1998-2002 Dodge Ram 2500 and 3500 Base models with the 5.9L 24-valve Cummins engine.

The BD Diesel X-Flow Power Intake Elbow is designed to eliminate the restrictive airflow found in factory intake systems. This high-flow plenum features a unique bulbous design that holds a reserve of air to improve turbo response time during acceleration. By utilizing smooth radius turns and an optimized internal geometry, this elbow reduces air turbulence and minimizes intake pressure losses.

Engineering attention was given to the hardware configuration; BD Diesel positions the fastening bolts outside of the intake tract rather than through it, removing internal obstructions that typically disrupt airflow. The elbow is equipped with two convenient ports (one pre-tapped) to simplify the installation of boost gauges or nitrous oxide/water-methanol injection systems.

• Improved Airflow: Large plenum design for increased air volume and reduced turbulence.
• External Hardware: Mounting bolts are located outside the intake to provide a clear air path.
• Dual Ports: Includes two ports for easy integration of boost sensors or power adders.
• Durable Finish: Coated in a sleek, heat-resistant black powder coat.
• Warranty: Covered by a 36-month / 75,000-mile manufacturer warranty.
• MPN: 1041550