Borla Specialty Universal Muffler Resonator 2.5" Center Inlet / 2.5" Center Outlet (40842S)
Optimize your vehicle's exhaust acoustics and maximize horsepower with the Borla Specialty Universal Muffler Resonator. Specifically engineered as a compact inline solution for custom street builds, sport compacts, and race cars utilizing 2.5-inch piping, this round unit functions flawlessly as either a standalone compact muffler or an inline supplemental resonator. It features a high-performance, straight-through free-flow internal design that completely eliminates restrictive backpressure to optimize exhaust gas velocity, horsepower, and torque. By combining raw performance with sound control, it effectively tames high-frequency rasp and harsh exhaust tones under load while keeping cruising speeds smooth and drone-free.
Built to handle extreme exhaust heat and daily driving wear, this heavy-duty unit features a 100% welded chassis crafted from premium T-304 austenitic stainless steel for maximum protection against rust and corrosion. Its compact 5-inch round by 10-inch long body is perfect for tight underbody spots where traditional oval mufflers simply will not fit. The smooth, un-notched necks are optimized for a clean, direct weld-in installation by fabricators, but can also be adapted with heavy-duty wide two-bolt style band clamps. Reversible for total engineering flexibility and arriving in a classic natural mill look that can be brushed or polished to a mirror shine, this American-made unit is backed by Borla's legendary Million-Mile Warranty.
Features
- Straight-through free-flow performance design reduces backpressure to unlock horsepower
- Versatile compact layout serves as a small standalone muffler or an inline sound resonator
- Manufactured from 100% welded, premium T-304 austenitic stainless steel for lifetime durability
- Utilizes premium continuous-filament fiber (CFF) acoustic packing for high-frequency rasp control
- Features smooth, un-notched necks optimized for direct weld-in custom exhaust fabrication
- Fully reversible layout featuring a straight-line 2.5" center inlet and 2.5" center outlet
- Proudly made in the USA and protected by Borla's Million-Mile Warranty
Fitment
- Universal Fitment
- Universal Custom Exhaust and Sound Resonator Applications
- Universal 2.5" Weld-In Round Muffler Configurations
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
