SKU: B741500-H | UPC: 700424673506
Cobb 15-21 Subaru WRX FMIC Hot Pipe Kit
The Cobb FMIC Hot Pipe Kit upgrades the intake tract on 2015-2021 Subaru WRX models equipped with Cobb SF Front Mount Intercooler. This kit replaces the restrictive factory hot pipe with a smooth, high-flow aluminum design that reduces pressure loss and supports higher boost levels. It delivers cooler charge air to the throttle body for consistent power gains across the RPM range.
Key Features
- Mandrel-Bent 6061-T6 Aluminum Tubing: Ensures laminar flow with no crimps or bends, minimizing turbulence for improved throttle response and turbo spool.
- 2.5" Diameter Piping: Larger than stock 2" pipe to handle increased airflow from FMIC upgrades, reducing backpressure and enabling 20+ whp gains.
- Reinforced Silicone Couplers: Rated to 350°F with embedded stainless steel wire mesh for secure, leak-free connections under high boost.
- Stainless Steel T-Bolt Clamps: Provides constant tension and durability, preventing boost leaks even after repeated heat cycles.
- Black Powder Coat Finish: Resists corrosion and underhood heat while blending with engine bay for a clean OEM+ appearance.
Product Notes
- Designed exclusively for use with Cobb SF FMIC on 2015-2021 WRX; not compatible with stock intercooler.
- Inspect all connections for proper sealing during initial startup to ensure optimal performance.
- EPA compliant.
Installation Notes
- Professional installation recommended.
- Bolt-on design takes 30-45 minutes with basic hand tools no cutting or permanent modifications needed.
- Includes all necessary hardware compatible with stock turbo inlet and Cobb FMIC assembly.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2021 | Subaru | WRX | Base |
| 2015-2021 | Subaru | WRX | Limited |
| 2015-2021 | Subaru | WRX | Premium |
Why Choose Cobb?
- Decades of Subaru-specific engineering with products used in rally and track applications worldwide.
- Manufactured in the USA with aerospace-grade materials for reliable daily-driven performance.
- Backed by extensive dyno testing and real-world validation on VA-chassis WRX platforms.
Frequently Asked Questions
-
Q: Will this fit 2015-2021 WRX STI models?
A: No, this kit is engineered specifically for non-STI WRX (VA chassis) with Cobb SF FMIC; STI uses different piping geometry. -
Q: What material is the piping made from?
A: High-strength 6061-T6 aluminum tubing with mandrel bends, black powder coated for heat and corrosion resistance. -
Q: What is the warranty and install process?
A: Cobb offers a limited lifetime warranty against defects installation is direct bolt-on with provided clamps and couplers, no tuning required.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Securely boxed with foam inserts, dimensions 23.5" x 7" x 7"
- Weight: 2.65 lbs
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