FUPOWER Launches All-New R400 Tip Cat-Back Exhaust System for 2015–2019 Subaru WRX STI
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2015-2019 Subaru WRX STI R400 Tip Cat Back Exhaust
2026-03-05
Engineered for Performance, Sound, and Track-Inspired Style
FUPOWER, a global leader in high-performance automotive exhaust systems and premium aftermarket components, is proud to announce the official release of its new R400 Tip Cat-Back Exhaust exclusively developed for the 2015–2019 Subaru WRX STI. Designed to unlock the full potential of Subaru’s legendary 2.5L turbocharged Boxer engine, this exhaust system combines precision engineering, premium materials, and aggressive styling to elevate power, sound, and visual appeal for performance enthusiasts.
Built as a direct-fit upgrade for the VA-chassis WRX STI, the FUPOWER R400 Cat-Back Exhaust replaces restrictive factory components with a high‑flow setup that improves exhaust gas flow, reduces backpressure, and enhances throttle response across the entire RPM band.
Key Product Features & Performance Advantages
- Premium T304 Stainless Steel ConstructionFully manufactured from high-grade T304 stainless steel for exceptional corrosion resistance, durability, and lightweight performance. All tubing, mufflers, flanges, and hangers are built to withstand extreme heat, harsh weather, and track‑use conditions.
- Mandrel‑Bent 3” (76mm) PipingSmooth mandrel bending preserves consistent pipe diameter, eliminating flow restrictions and turbulence. This optimized layout supports reliable horsepower and torque gains while improving engine efficiency.
- R400 High‑Flow Muffler & Quad Titanium‑Finish TipsTuned muffler design delivers a deep, aggressive exhaust note with crisp shift sounds and minimal cabin drone at highway speeds. The signature 4-inch R400 rolled titanium‑look tips add a bold, race‑ready appearance that complements the WRX STI’s sporty rear fascia.
- Precision TIG WeldingRobot‑assisted TIG welding ensures uniform strength, leak‑free performance, and a clean, professional finish that matches FUPOWER’s strict quality standards.
- Direct Bolt‑On InstallationEngineered to factory mounting points with included hardware and gaskets. No cutting, welding, or modification is required, allowing for fast, hassle‑free installation suitable for both DIY enthusiasts and professional shops.
- Vehicle‑Specific CalibrationDeveloped and dyno‑tested specifically for the 2015–2019 Subaru WRX STI to optimize power delivery, sound character, and fitment without compromising reliability or drivability.
Brand Vision
“At FUPOWER, we design exhaust systems that balance real‑world performance, durability, and driver enjoyment,” said a spokesperson for FUPOWER. “The new R400 Tip Cat-Back Exhaust for the Subaru WRX STI reflects our commitment to enthusiasts who demand more from their vehicles. We’ve combined proven flow dynamics with head‑turning styling to create an exhaust that enhances every drive, whether on the street or the track.”
Availability
The FUPOWER R400 Tip Cat-Back Exhaust for 2015–2019 Subaru WRX STI is now available worldwide through authorized FUPOWER distributors and official online channels.
Media Contact
For press inquiries, product images, or additional information:FUPOWER Marketing TeamEmail: sales@fupower.comWebsite: www.fupowe.com
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Founded in 2009 by Frank Cao, we have 4 specialized manufacturing facilities. Fupower has a total of more than 120 employees, and the total area of the four production facilities, warehouse and office space is 183,067 sq.ft. As of May 2026, our headquarters is in Shanghai, China.
Contact person: Frank
Contact number: 0086-18721636174
Email: sales@fupower.com
WhatsApp: 0086-18721636174
Company address: Room 806, Building 17, 2255 Yueluo Road, Shanghai, China