Description
The CORSA Performance Variable Sound Exhaust System (manufacturer part number 14789; Summit Racing part number CSE-14789; UPC 847466021626) is a 304 stainless steel rear axle-back kit with a split-rear, dual-in/four-out layout. It is designed for vehicles factory-equipped with four exhaust tips and NPP. It does not fit models with factory ground effects.
The system connects directly to the stock NPP valve actuator and reuses the factory NPP module. CORSA’s straight-through design and patented reflective sound-cancellation technology are intended to reduce the low-frequency drone associated with exhaust systems while maintaining a crisp exhaust note. The variable-sound setup is designed to be bold when desired and quieter when needed.
- Construction: Natural-finish 304 stainless steel system and mufflers
- Mufflers: Two chambered mufflers, each with a single inlet and dual outlets
- Pipe diameter: 2.75 in. intermediate pipes and 2.75 in. tailpipes
- Tips: Four included 4.00 in. round, slant-cut tips with rolled edges; polished 304 stainless steel
- Included: Mufflers, tips, and installation hardware; sold as a kit
- Not included: Catalytic converters
CORSA describes its exhaust systems as designed for a direct fit and quick installation without cutting or welding. Confirm the vehicle has the factory NPP system and four factory tips, and does not have factory ground effects, before ordering.
Installing parts that bypass, defeat, or disable manufacturer technology or design required to meet state and federal Clean Air Act emissions standards may be illegal.
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.
