Description
The CORSA Xtreme Exhaust System (part number 21077BLK) is a dual-exit, rear-axle-back kit made from 304 stainless steel. It has a natural-finish system and two chambered mufflers, each with a single inlet and single outlet. CORSA’s Xtreme design combines a straight-through, non-restrictive layout with reflective sound-cancellation technology intended to reduce the low-frequency drone associated with exhaust systems.
CORSA says its sound-cancellation approach tunes out those low frequencies while delivering a crisp exhaust note. The straight-through design is also intended to reduce backpressure and help the engine produce more horsepower and torque; results can vary by vehicle and setup.
- Two 3.00-inch inlets; 3.00-inch tailpipes
- Four included round tips with 4.50-inch outlets
- Black 304 stainless steel tips with slant cuts and rolled, double-wall edges
- Mounting hardware included; catalytic converters not included
- Sold as a kit; not remanufactured
The system is designed for a direct-fit installation, and CORSA describes its exhaust systems as installing without cutting or welding. Confirm fitment for your vehicle before ordering, as no vehicle application is specified here.
Part details: Manufacturer’s part number 21077BLK; Summit Racing part number CSE-21077BLK; UPC 847466021596.
Emissions notice: It is illegal to install parts or components that bypass, defeat, or render inoperative manufacturer technology and design required to meet state and federal Clean Air Act emissions standards.
Fitment and ordering notes
- Confirm the exact model, part number, configuration, dimensions, and application against the information shown in this listing.
- Review the product images and listed attributes before ordering; fitment can vary by vehicle, equipment, year, and installation setup.
- Contact X Factor Motorsport for availability, fitment, product questions, or freight guidance before purchase.
