XForce Varex Valved Cat Back Exhaust Burnt Blue Tips 2011-2021 WRX Sedan / STI Sedan | 3" Mandrel-Bent Stainless Steel | Valved Performance Exhaust
Overview
The XForce Varex Valved Cat Back Exhaust is a high-performance exhaust system designed specifically for the 2011-2021 Subaru WRX and WRX STI Sedans. This 3-inch mandrel-bent cat-back system enhances exhaust flow and sound control, catering to enthusiasts who want a versatile exhaust that balances aggressive tone with street-friendly refinement. Featuring quad burnt blue 4-inch tips, it not only improves performance but also adds a striking visual upgrade to the rear of your Subaru.
Engineered with durability and sound tuning in mind, the system incorporates flex bellows to absorb engine movement and reduce stress, ensuring long-lasting reliability. The inclusion of a hot dog resonator in the center section optimizes flow while smoothing out the exhaust note. The all-new Varex valved mufflers provide 10% greater volume variation compared to previous designs, allowing drivers to switch between a loud, throaty exhaust note and a more subdued, daily-drivable tone via a remote key fob.
This exhaust system is the result of extensive testing on Subaru VA STI and WRX G3 S2 platforms, delivering a refined balance of maximum flow, sound quality, and adjustability. For Subaru owners seeking a cat-back exhaust that enhances both performance and style without compromising daily usability, the XForce Varex Valved Cat Back Exhaust is a compelling upgrade.
Features & Specifications
This XForce Varex Valved Cat Back Exhaust is engineered for 2011-2021 Subaru WRX and WRX STI Sedans and features 3" mandrel-bent stainless steel tubing with quad burnt blue 4" tips. Constructed from brushed 304 stainless steel, it delivers improved exhaust flow and adjustable sound control for Subaru enthusiasts seeking a versatile performance exhaust upgrade.
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Brand: XForce
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Product: Varex Valved Cat Back Exhaust Burnt Blue Tips 2011-2021 WRX Sedan / STI Sedan
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Part Number: ESSWRX14VKBU
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Fitment: 2011-2021 Subaru WRX / WRX STI Sedan
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Material: Brushed 304 Stainless Steel
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Finish: Burnt Blue Quad 4" Tips
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Construction: Mandrel-Bent, Welded
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Origin: Not Specified
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Pipe Diameter: 3" main tubing, 2.5" twin piping
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Valved Muffler: All-new Varex valved rear mufflers with remote control
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Sound Control: 10% greater volume variation with remote key fob operation
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Resonator: Center hot dog resonator for sound refinement
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Flex Bellows: Integrated to reduce stress and absorb engine movement
Key Benefits
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Performance: Optimized 3" exhaust flow improves power delivery and throttle response on WRX and STI sedans.
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Sound Control: Remote-operated Varex valve allows seamless switching between aggressive and street-friendly exhaust tones.
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Durability: Flex bellows absorb engine movement, reducing stress and extending system lifespan.
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Aesthetics: Quad burnt blue 4" tips provide a bold, aggressive rear-end appearance that complements Subaru styling.
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Fitment: Designed specifically for 2011-2021 WRX and STI sedans, ensuring precise installation and optimal performance.
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Adjustability: Slip joint clamps and modular design simplify installation and accommodate minor fitment variations.
What's Included
- 1× Center section with hot dog resonator
- 1× Cast stainless steel Y-piece rear section with XForce logo
- 2× Varex valved rear mufflers
- 1× Varex remote key fob
- 1× Key fob receiver unit
- 1× 3" slip joint clamp
- 2× 2.5" slip joint clamps
- 4× Nuts & bolts
- 1× 3" 2-bolt gasket
- 2× 2.5" gaskets
Installation & Compatibility
Installation of the XForce Varex Valved Cat Back Exhaust is moderately complex due to the valved muffler system and multiple components. While the system uses slip joint clamps for adjustability, professional installation is recommended to ensure proper fitment and optimal valve operation. No major modifications are required, but verifying compatibility with your specific model year and trim is essential. The system does not require tuning but benefits from proper exhaust sealing and alignment to maintain sound quality and performance.
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Professional Installation: Recommended
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Modifications Required: None
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Verify Compatibility: Confirm fitment for your specific 2011-2021 WRX or WRX STI Sedan
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