Description
The CORSA Performance Xtreme Exhaust System, part number 21102BLK (Summit Racing part number CSE-21102BLK; UPC 847466022203), is a 304 stainless steel cat-back kit with a split-rear exit. It has two inlets and four outlets, with 3.00-inch intermediate pipes and 3.00-inch tailpipes.
CORSA’s Xtreme design uses a straight-through, non-restrictive layout and patented reflective sound-cancellation technology intended to reduce the low-frequency sound associated with exhaust drone. CORSA describes the result as a crisp, clean exhaust sound, with reduced backpressure intended to support horsepower and torque production.
- Construction: 304 stainless steel system with natural finish
- Included: Installation hardware and four 304 stainless steel tips; tips have a black finish, round shape, slant cut, rolled double-wall edge, and 4.50-inch outlet size
- Not included: Catalytic converters or mufflers
- Valve note: Integrates directly with the stock AFM valve actuator; equipped with the factory NPP option
- Sale quantity: One kit; not remanufactured
For vehicles equipped with NPP, note that deleting NPP valves on 2021 vehicles will result in a check-engine light. Professional installation is highly recommended, and a scan tool will be necessary. Confirm the system’s suitability for your vehicle before ordering; the supplied details do not specify vehicle fitment.
Emissions notice: It is illegal to install parts or components that bypass, defeat, or render inoperative manufacturer technology or design required to reduce emissions under state and federal Clean Air Act 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.







