HPS Reinforced Silicone Post MAF Air Intake Hose Kit

2013–2016 Subaru BRZ / 2017–2020 Toyota 86 / 2013–2016 Scion FR-S

57-1231-RED

Overview:

The HPS Reinforced Silicone Post MAF Air Intake Hose Kit is a high-quality upgrade designed to replace the restrictive stock OEM hose in your Subaru BRZ, Toyota 86, or Scion FR-S. Crafted from high-temperature 4-ply reinforced silicone, this hose enhances airflow while eliminating the factory sound tube for a cleaner intake path.

Ideal for enthusiasts seeking improved engine response and efficiency, this hose reduces heat soak and supports better performance without requiring any engine tuning. Whether you drive daily or enjoy spirited weekend runs, this upgrade helps your vehicle breathe more freely and perform more reliably.

Key Features:

This reinforced silicone hose offers several advantages over the factory component, including:

• Constructed from high-temperature 4-ply reinforced silicone for durability and heat resistance.
• Replaces the restrictive OEM post-MAF hose to improve airflow and reduce intake turbulence.
• Deletes the stock sound tube, streamlining the intake path for better efficiency.
• Designed to reduce heat soak, helping maintain cooler intake air temperatures.
• Dyno-proven performance gains of approximately +1.4 wheel horsepower and +1.2 ft-lbs of torque without requiring re-tuning.
• Precision fitment for Subaru BRZ (2013–2016), Toyota 86 (2017–2020), and Scion FR-S (2013–2016) models.
• Bright red color adds a visual upgrade under the hood while maintaining OEM-style fitment.

Construction & Design:

The hose is engineered from premium 4-ply reinforced silicone, providing excellent flexibility and strength to withstand high under-hood temperatures and pressures. This construction ensures long-lasting durability compared to the factory rubber hose, which can degrade or collapse over time.

The design eliminates the factory sound tube, which can restrict airflow and trap heat. By streamlining the intake path, the hose promotes smoother, more consistent airflow to the engine’s mass airflow sensor (MAF), enhancing throttle response and overall engine efficiency.

Performance & Sound

• Improves airflow post-MAF sensor, reducing intake restrictions for better engine breathing.
• Reduces heat soak, helping maintain cooler intake air temperatures for more consistent performance.
• Delivers measurable gains of +1.4 wheel horsepower and +1.2 ft-lbs torque on a dyno without any ECU tuning.
• By removing the sound tube, the intake sound is cleaner and less turbulent, contributing to a more refined engine note.

Installation & Fitment:

This hose is a direct bolt-on replacement for the factory post-MAF intake hose on compatible Subaru BRZ, Toyota 86, and Scion FR-S models. It uses existing mounting points and requires no modifications, cutting, or drilling.

No special tuning or adjustments are necessary after installation, making it a straightforward upgrade for enthusiasts looking to improve intake efficiency quickly and reliably.

What's Included:

• One high-temperature 4-ply reinforced silicone post-MAF air intake hose
• All necessary clamps and hardware for secure installation
• Installation instructions

Ideal For:

• Subaru BRZ, Toyota 86, and Scion FR-S owners seeking improved intake airflow and performance
• Drivers wanting a durable, heat-resistant upgrade to the factory intake hose
• Enthusiasts looking for a simple bolt-on mod with proven horsepower and torque gains
• Those who prefer a cleaner engine bay appearance with a bright red silicone hose
• Daily drivers and weekend performance enthusiasts alike

HPS Performance specializes in high-temperature reinforced silicone hoses and related joining solutions—couplers, tubing, and clamps—built for boosted and high-heat engine bays. Used in performance and racing applications, HPS products are designed to meet demanding temperature and pressure conditions for dependable charge-air and coolant routing.