Why Upgrade to a Full Flow PTFE Fitting?

Unlike traditional multi-piece hose ends, the EVIL ENERGY one-piece full flow design improves sealing and reduces restriction while making installation cleaner and more secure. PTFE-compatible fittings are also essential for modern fuels like E85, race gas, and ethanol blends that destroy standard rubber-lined setups over time.

Because nothing says “good financial decisions” like rebuilding your entire fuel system twice.

Learn how to install AN fittings like this on our DIY article

If this is the wrong size that you are not looking for? Click on the “buy” link and choose from multiple AN sizes that fit your needs!

Features

• 6AN female hose end fitting
• 30-degree angled design for easier routing
• Full flow internal design for maximum efficiency
• Compatible with PTFE braided hose
• Lightweight billet aluminum construction
• Black anodized corrosion-resistant finish
• Leak-resistant precision-machined sealing surfaces
• Ideal for fuel, oil, coolant, vacuum, and transmission applications
• Compatible with E85, ethanol, methanol, and race fuel systems

[Product Size & Parameter] Size: 6AN. Thread Size: 9/16-18 UNF. Working Pressure: 1500PSI. Working Temperature Range: -40°F-250°F. Angle: 30 Degrees. Note: Please verify the hose size before purchase.

Common Applications

• Turbocharger oil feed and return systems
• Fuel pressure regulator plumbing
• Return-style fuel systems
• Oil cooler routing
• Catch can setups
• LS swaps
• Honda K-series and B-series builds
• Nissan SR20DET and RB applications
• Subaru WRX/STI fuel systems
• Drift, drag, street, and track builds

[Application] These fittings are ONLY used with PTFE fuel lines for E85, alcohol, nitro, take hold of, nitrous, power steering, oiling, hydraulics, and vacuum applications. A 360° swivel design allows for simple assembly.

Built for Modern Performance Fuels

PTFE hose systems have become the standard for serious performance builds because they resist fuel permeation, corrosion, and chemical breakdown far better than traditional rubber hose. Pairing them with proper one-piece PTFE fittings helps eliminate leaks and pressure loss under extreme conditions.

Especially useful when your tuner says:

“Just turn the boost up a little more.”

Famous last words.

[Full Flow Hose End] Precision CNC machined hose end fitting features superb wall thickness and achieves uninterrupted glide.

Easy Installation

The one-piece design simplifies assembly compared to older-style AN fittings while maintaining a secure seal and professional appearance. The compact 30-degree angle also gives you more flexibility when routing lines around tight manifolds, radiators, and intercooler piping.

[Anti-Leak Seal] On the AN side, there’s a 37-degree flare angle to form an entire seal without applying an extra sealing compound.
[Built to Last] The only-piece PTFE hose end fitting is constituted of lightweight 6061-T6 aluminum alloy, and a black anodized finish at the surface increases durability, anti-corrosion, and wear resistance.

Why Choose EVIL ENERGY?

EVIL ENERGY has become a popular choice among enthusiasts looking for reliable performance fittings and plumbing components without spending aerospace money on every single hose connection. Their PTFE fitting lineup delivers strong sealing, solid machining quality, and compatibility with modern fuel systems at a budget-friendly price point.

Because your project car already consumed the mortgage payment.