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Borla 04-07 STi XR-1 Cat-Back Exhaust

Original price was: $928.99.Current price is: $185.79.

SKU: SK0001828-US20260703-172840 Category: Tag:

SKU: 140075 | UPC: 808422400756

Borla 2002-2007 Subaru Impreza WRX WRX STI XR-1 S-Type Cat-Back Exhaust System Part #140075

The Borla 140075 XR-1 S-Type Cat-Back Exhaust System delivers aggressive sound and performance gains for 2002-2007 Subaru Impreza WRX and WRX STI models with 2.0L/2.5L turbo engines. This direct bolt-on system fits sedans, hatchbacks, and wagons with automatic or manual transmissions, providing increased horsepower, torque, and fuel efficiency through patented straight-through technology. Experience the Borla Sound of Power that enhances every drive with refined throttle response and motorsport styling.

Key Features

  • T-304 Stainless Steel Construction: All-welded durability resists corrosion for long-lasting performance and million-mile warranty coverage.
  • 3″ Tubing Diameter: Maximizes exhaust flow from the catalytic converter back, unlocking power and supporting turbo tuning potential.
  • XR-1 Multi-Core Muffler Technology: Patented straight-through design reduces backpressure for gains in horsepower, torque, and fuel mileage.
  • 4.5″ Polished Single Left Rear Tips: Angle-cut, rolled-edge T-304 stainless steel tips add aggressive styling visible from behind.
  • Rear Exit Configuration: Custom-engineered for precise fit on AWD Subaru platforms, meets emissions standards with no drone.

Product Notes

  • Pair with Borla header #17217 for additional power gains on turbocharged engines.
  • Clean regularly with mild soap to maintain polished finish on stainless steel components.
  • Ships as complete bolt-on kit; no cutting or welding required for stock applications.

Installation Notes

  • Professional installation recommended.
  • Bolt-on design uses factory hangers and mounts; 1-2 hours typical install time.
  • Compatible with stock catalytic converters and oxygen sensors; no tuning required for street use.

This Part Fits

Year Make Model Submodel
2002-2003 Subaru Impreza WRX Sedan
2002-2005 Subaru Impreza WRX Wagon
2004-2005 Subaru Impreza WRX Sedan
2006-2007 Subaru Impreza WRX Sedan
2006-2007 Subaru Impreza WRX Limited Sedan
2004-2007 Subaru Impreza WRX STI Hatchback
2005-2006 Subaru Impreza WRX STI Sedan
2007 Subaru Impreza WRX STI Limited Sedan

Why Choose Borla?

  • Leads exhaust innovation since 1978 with race-proven technology from global competitions.
  • Uses only T-304 austenitic stainless steel for strength beyond aluminized or 409 materials.
  • Engineers every system for bolt-on precision, flow gains, and signature exhaust note.

Frequently Asked Questions

  • Q: Does this fit both automatic and manual transmission WRX/STI models?
    A: Yes, the 140075 Cat-Back fits 2002-2007 Impreza WRX and 2004-2007 WRX STI sedans, hatchbacks, and wagons with auto or manual transmissions and AWD.
  • Q: What material is used and how does it perform long-term?
    A: Full T-304 stainless steel tubing, mufflers, and 4.5″ tips ensure corrosion resistance, backed by Borla’s million-mile warranty for street and track use.
  • Q: Is professional installation or tuning needed?
    A: Direct bolt-on with no welding; professional install advised for optimal alignment, no ECU tuning required for daily driving.

Shipping & Handling

  • Method: Ground shipping via UPS/FedEx
  • Availability: In stock – ships same or next business day
  • Packaging: Single oversized box, approx. 42″ L x 16″ W x 16″ H
  • Weight: 28.5 lbs product weight; 35 lbs shipping

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Borla 04-07 STi XR-1 Cat-Back ExhaustBorla 04-07 STi XR-1 Cat-Back Exhaust
Original price was: $928.99.Current price is: $185.79.
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