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MBRP S48033CF 3" Cat-Back Exhaust Subaru WRX STI
MBRP S48033CF 3" Cat-Back Exhaust Subaru WRX STI
MBRP S48033CF 3" Cat-Back Exhaust Subaru WRX STI - Mounted
MBRP S48033CF 3" Cat-Back Exhaust Subaru WRX STI - Mounted
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MBRP 15-21 Subaru WRX 2.0L/STI 2.5L/11-14 Sed 3in Cat-Back Single Rear Exit w/Carb Fiber Tips- T304

MBRP
MBRPS48033CF
882963130327
Catback
4 Units In Stock - Ships Next Business Day
Catback, Exhaust Systems, MBRP
$ 963.52 $ 662.99
$ 662.99

SKU: S48033CF / UPC: 882963130327

MBRP 3-Inch Cat-Back Exhaust System: Single Rear Exit with Carbon Fiber Tips for Subaru WRX and STI

The MBRP cat-back exhaust system is engineered for direct bolt-on installation on select WRX and STI models. This T304 stainless steel setup replaces the restrictive factory exhaust from the catalytic converter back, delivering a 34% increase in exhaust flow for noticeable gains in horsepower and torque. Drivers report quicker acceleration and a deeper, more aggressive tone that transitions from moderate cruising to full race intensity under load making it the go-to option for Subaru owners who demand real-world power without compromise.

Precise Vehicle Fitment

Designed exclusively for sedan configurations, this exhaust fits the following models and engines:

  • 2011-2014 Subaru Impreza WRX Sedan (2.0L or 2.5L engines)
  • 2011-2014 Subaru Impreza WRX STI Sedan (2.5L engine)
  • 2015-2021 Subaru WRX (2.0L engine)
  • 2015-2021 Subaru WRX STI (2.5L engine)

Confirm compatibility with your specific trim using the part number S48033CF before purchase. This system ensures a seamless fit without modifications, preserving the single rear exit layout for a clean, factory-like appearance.

What's Included in Your Purchase

Every MBRP S48033CF kit arrives complete with all components for a straightforward installation:

  • Mandrel-bent 3-inch T304 stainless steel piping for smooth, unrestricted flow
  • High-flow muffler tuned for balanced street and track performance
  • Single rear exit configuration
  • Pair of 5-inch outer diameter (OD) carbon fiber exhaust tips for a premium, lightweight finish
  • Full bolt-on hardware kit, including clamps, hangers, and gaskets
  • Detailed installation instructions (available as a downloadable PDF)

No additional parts are required everything bolts directly to your existing catalytic converter and mid-pipe.

Key Specifications

  • Part Number: S48033CF
  • UPC: 882963130327
  • Material: Heavy-duty T304 stainless steel tubing and components (corrosion-resistant and built to last)
  • Pipe Diameter: 3 inches throughout for optimal velocity and scavenging
  • Tip Style: Dual 5-inch OD carbon fiber tips (single rear exit)
  • Sound Profile: Moderate at idle/cruising aggressive race note at wide-open throttle
  • Exhaust Type: Cat-back (starts after the catalytic converter)
  • Warranty: Lifetime structural warranty against defects
  • Part Weight: 40 pounds
  • Shipping Details: Ships in a single oversized box (dimensions not specified by manufacturer expect standard freight handling for automotive exhaust kits)

Why This Exhaust Delivers Results That Matter

The mandrel-bent design eliminates crimps and restrictions, allowing your Subaru's turbocharged engine to breathe freely and expel heat faster. Paired with the Armor Pro series construction, it withstands harsh conditions while providing consistent power delivery across the RPM range. Subaru WRX and STI drivers choose this system for its proven flow efficiency that edges out stock setups and aftermarket alternatives, turning everyday drives into thrilling experiences. Backed by MBRP's commitment to quality, it's the reliable pick for long-term performance without the hassle.

Ready to transform your Subaru's exhaust note and dynamics? Add the MBRP S48033CF to your cart today and experience the difference in every shift.

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