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 F250/F350, Excursion 6.0L Diesel)
Note: Not compatible with E-Series vans or Cab & Chassis models.
Note for 2003–2004 owners: This intake elbow may interfere with the factory throttle valve. To check compatibility — if your throttle valve has electrical wires connected, it’s active and not compatible. If there are no wires, it’s non-active and our intake elbow will fit perfectly.
Key Features
• Aluminum construction for strength and heat resistance
• Fully TIG-welded mandrel-bent tubing for smooth airflow
• CNC-machined billet aluminum flanges for a precision fit
• Direct bolt-on replacement using factory mounting points
• Designed to maximize airflow for better throttle response and performance
• Durable powder coat finish in signature Sinister Blue
• Two-year warranty
Product Overview
The Sinister Diesel Intake Elbow is built to unlock the performance potential of your 6.0L Powerstroke. Engineered for improved airflow, this high-flow aluminum elbow helps your engine breathe easier, promoting cleaner combustion, better throttle response, and a noticeable increase in power and torque.
Precision-crafted from mandrel-bent aluminum and TIG-welded for strength, this intake elbow isn’t just a cosmetic upgrade—it’s a performance part built to perform under heavy load, towing, and daily use. The CNC-machined flanges ensure a leak-free fit, and the signature Sinister Blue powder coat gives your engine bay a clean, professional look.
Installation is simple and straightforward, requiring no fabrication or special tools. It’s a true bolt-on upgrade that delivers long-term performance gains and visual appeal.
What’s Included
• Sinister Diesel aluminum intake elbow (Sinister Blue powder coat finish)
• Complete hardware kit for installation
Q&A
Q: Is this intake elbow street legal?
A: Yes. It is 50-state legal and CARB certified under EO# D-721-6 for 2005–2007 Ford F250/350 & 2005 Excursion 6.0L Powerstroke models.
Q: Will this fit my E-Series van or Cab & Chassis truck?
A: No. This intake elbow is not compatible with those configurations due to differences in engine bay layout and accessory clearance.
Q: How do I know if my 2003–2004 Powerstroke is compatible?
A: Check your throttle valve. Mounted inbetween the stock intake elbow and your intake manifold. If it has electrical wires connected, it’s an active valve and this elbow won’t fit. If there are no wires, it’s non-active and this elbow installs without issue.
Q: What kind of performance gains can I expect?
A: Most users experience improved throttle response and smoother acceleration due to enhanced airflow.
Q: Is tuning required?
A: No tuning is required. This is a bolt-on upgrade that works with stock or modified setups.
Q: What finish options are available?
A: Each intake elbow is finished in Sinister Blue powder coat for durability and a premium appearance.
Q: How long does installation take?
A: Installation can typically be completed in under an hour with standard hand tools.
Q: Does this part include a warranty?
A: Yes. It comes backed by a two-year warranty from Sinister Diesel.
