Sinister Diesel Intake Elbow – 6.0L Powerstroke
Fits 2003–2007 Ford F-250 / F-350 / F-450 / F-550 Super Duty
50-State Legal – CARB EO# D-721-6
Valid for 2005–2007 Ford F-250 / F-350 6.0L Diesel
Note: Not compatible with E-Series vans or Cab & Chassis models.
Note: for 2003–2004 F-Series & Excursion owners: This intake elbow may interfere with the factory throttle valve. To check compatibility, inspect the throttle valve located between the factory intake elbow and the intake manifold. If electrical wires are connected, the valve is active and this intake elbow is not compatible. If there are no wires, the valve is non-active and this intake elbow will fit correctly.
Key Features
• Aluminum construction for strength and heat resistance
• Fully TIG-welded, mandrel-bent tubing for smooth, unrestricted airflow
• CNC-machined billet aluminum flanges for precise, leak-free fitment
• Direct bolt-on replacement using factory mounting points
• Designed to increase airflow for improved throttle response and performance
• Durable Sinister Blue powder coat finish for corrosion resistance and clean appearance
• Backed by a 2-year Sinister Diesel warranty
Product Overview
The Sinister Diesel Intake Elbow is designed to improve airflow efficiency and unlock additional performance from your 6.0L Powerstroke. By replacing the restrictive factory elbow with a high-flow aluminum design, this upgrade allows your engine to breathe more freely, resulting in improved throttle response, smoother acceleration, and increased overall efficiency.
Constructed from mandrel-bent aluminum and fully TIG-welded for durability, this intake elbow is built to perform under towing, daily driving, and demanding conditions. CNC-machined billet flanges ensure a precise seal at the intake manifold, while the signature Sinister Blue powder coat adds both protection and a refined, professional look to your engine bay.
Installation is straightforward with no cutting or fabrication required, making this a true bolt-on upgrade that delivers both performance and reliability.
What’s Included
• Sinister Diesel aluminum intake elbow with Sinister Blue powder coat finish
• Complete installation hardware
Frequently Asked Questions
Q: Is this intake elbow street legal?
A: Yes. This intake elbow is 50-state legal and CARB certified under EO# D-721-6 for 2005–2007 Ford F-250 / F-350 and 2005 Excursion models equipped with the 6.0L Powerstroke.
Q: Will this fit E-Series vans or Cab & Chassis trucks?
A: No. Due to differences in engine bay layout and component clearance, this intake elbow is not compatible with E-Series or Cab & Chassis configurations.
Q: How do I know if my 2003–2004 Powerstroke is compatible?
A: Inspect the throttle valve located between the stock intake elbow and the intake manifold. If the valve has electrical wires connected, it is an active throttle valve and this intake elbow will not fit. If there are no wires, it is a non-active valve and this intake elbow installs without issue.
Q: What kind of performance improvements can I expect?
A: Most users report improved throttle response and smoother acceleration due to increased airflow and reduced restriction.
Q: Is tuning required after installation?
A: No. This intake elbow is designed to work with stock tuning and does not require any calibration changes.
Q: What finish does the intake elbow have?
A: Each intake elbow is finished in Sinister Blue powder coat for durability, corrosion resistance, and a premium under-hood appearance.
Q: How long does installation take?
A: Installation typically takes under one hour using basic hand tools.
Q: Does this product include a warranty?
A: Yes. The Sinister Diesel Intake Elbow is backed by a 2-year warranty.
