411 Works 90 Degree Silicone Coupler | High-Temperature Durable | Silicone Hose Coupler Overview The 411 Works 90 Degree Silicone Coupler is engineered for connecting charge pipes, intercoolers, water systems, and other critical components in demanding automotive environments. Designed with durability and flexibility in mind, this coupler is ideal for Subaru enthusiasts who require a reliable and high-performance hose connection that can withstand extreme temperatures and pressures. Built with a 4- and 5-ply reinforced silicone construction, the coupler combines multiple layers of silicone and fabric reinforcement to deliver exceptional strength without sacrificing flexibility. 411 Works rigorously tests these couplers in-house to ensure consistent quality and durability, making them a trusted choice for performance builds and maintenance alike. For Subaru owners, especially those upgrading turbo systems or cooling setups on WRX, STI, or other turbocharged models, this coupler offers peace of mind with its high-temperature resistance and proven burst pressure capabilities. Its robust design supports reliable sealing and longevity under the harsh conditions typical of performance driving and track use. Features & Specifications This 411 Works 90 Degree Silicone Coupler is engineered for universal automotive applications and features a reinforced multi-ply silicone design. Constructed from high-grade silicone with fabric reinforcement, it delivers superior durability and heat resistance for Subaru enthusiasts seeking reliable hose connections in extreme conditions. Brand: 411 Works Product: 90 Degree Silicone Coupler Part Number: 411-90C312 Fitment: Universal / N/A Material: Reinforced Silicone Finish: Smooth Silicone Surface Construction: 4- and 5-Ply Reinforced Layers Origin: Not Specified Temperature Range: -120°F to +360°F (peak +390°F) Wall Thickness: 5mm for 2" to 2-¾" sizes Size: 90 Degree bend, 2-¾" diameter Burst Pressure: Data available upon request Key Benefits Durability: Multi-ply reinforced silicone construction resists cracking and splitting under high heat and pressure. Heat Resistance: Rated for extreme temperature ranges, ideal for turbocharged Subaru engines and cooling systems. Flexibility: Maintains a secure seal while accommodating engine movement and vibration. Reliability: Tested in-house for consistent quality, ensuring long-lasting performance in demanding applications. Universal Fitment: Suitable for a wide range of hose connections including charge pipes and intercoolers on Subaru platforms. Compatibility: Works seamlessly with 411 Works clamps for a complete, leak-free connection. What's Included 1× 411 Works 90 Degree Silicone Coupler (2-¾" diameter) Installation & Compatibility Installation of the 411 Works 90 Degree Silicone Coupler is straightforward and generally DIY-friendly for enthusiasts familiar with intercooler or charge pipe upgrades. No special tools are required beyond standard hose clamp drivers or sockets. For best results, pair with compatible 411 Works clamps to ensure a secure, leak-free connection. This coupler is designed as a universal fit and can be used across various Subaru models and other vehicles requiring a 2-¾" 90-degree silicone hose connection. Always verify size compatibility with your specific setup before installation. Professional Installation: DIY-Friendly Modifications Required: None Verify Compatibility: Confirm hose diameter and bend angle for your application Shop with confidence at Subimods—your Subaru parts specialists.
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