Description
The CORSA Variable Sound Exhaust System (part number 14789BLK; Summit Racing part number CSE-14789BLK, UPC 847466021633) is a 304 stainless steel rear axle-back system with a split-rear exit. It has a dual-in/four-out layout, 2.75-inch intermediate pipes and tailpipes, and a natural-finish system.
CORSA’s Variable Sound design combines a straight-through, non-restrictive layout with its patented reflective sound-cancellation technology, which is designed to tune out low-frequency exhaust drone. The system connects directly to the factory NPP valve actuator and reuses the NPP module.
The kit includes two chambered mufflers, each with a single inlet and dual outlets. The mufflers are made from 304 stainless steel and have a natural finish. Four included 304 stainless steel tips have a black finish, round shape, slant cut, rolled edges, and 4.00-inch outlets.
- Fits vehicles factory-equipped with NPP and four exhaust tips.
- Does not fit models equipped with factory ground effects.
- Hardware is included; catalytic converters are not included.
- Sold as a kit; not remanufactured.
The source describes CORSA exhausts as designed for installation without cutting or welding. Check vehicle equipment and fitment before ordering. It is illegal to install parts that bypass, defeat, or disable manufacturer technology designed 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.
