SKU: B716500-H | UPC: 700424674039
Cobb 2016-2021 Subaru WRX STI Hard Pipe Kit – Hot Side
The Cobb 2016-2021 Subaru WRX STI Hard Pipe Kit – Hot Side replaces the factory plastic hot-side intercooler pipe with mandrel-bent aluminum tubing for unrestricted airflow from turbo to intercooler. This direct-fit upgrade reduces pressure loss and heat soak on VA-chassis STI models, delivering sharper throttle response and consistent power gains. Engineered for seamless integration with stock or Cobb FMIC setups.
Key Features
- Mandrel-Bent 6061-T6 Aluminum Tubing: 2.75-inch diameter ensures constant smooth bends and minimal turbulence for maximum boost retention.
- High-Temperature Silicone Couplers: Reinforced 4-ply design provides secure, flexible seals that withstand extreme boost pressures.
- T-Bolt Clamps: Stainless steel construction applies even tension to prevent leaks under high-performance conditions.
- Black Wrinkle Powder Coat Finish: Resists corrosion, thermal cycling, and underhood heat for long-term durability.
- Bolt-On Design: Precision fitment requires no trimming or modifications, compatible with stock turbo and intercooler.
Product Notes
- EPA compliant for street use.
- Requires no ECU tuning for installation but pairs with Cobb Accessport for full gains.
Installation Notes
- Professional installation recommended.
- 30-45 minute install using basic hand tools no cutting or permanent mods needed.
- Reuses select factory O-rings and hardware for quick assembly.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2016-2021 | Subaru | WRX STI | All |
Why Choose Cobb?
- 20+ years specializing in Subaru performance upgrades.
- Dyno-tested for real-world power and reliability gains.
- CNC-machined prototypes ensure exact OEM-match fitment.
Frequently Asked Questions
- Q: Will this fit 2015 WRX STI models?
A: Designed for 2016-2021 VA-chassis WRX STI 2015 requires separate kit due to minor piping differences. - Q: What material is used for the pipe?
A: 6061-T6 aluminum tubing with wrinkle black powder coat, paired with 4-ply silicone and stainless clamps. - Q: Does installation void warranty?
A: Bolt-on replacement Cobb provides support documentation. Check vehicle warranty terms.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Custom foam-lined box, 24 x 12 x 8 inches
- Weight: 5 lbs shipping weight
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