Borla Touring 2.75" Center Inlet / Center Outlet Heavy Duty Truck Universal Muffler - Un-Notched Necks (401665)
Optimize your custom exhaust configuration with the Borla Heavy Duty Truck Universal Specialty Muffler. Engineered specifically for full-size trucks, SUVs, and high-displacement commercial applications that require an elongated case profile, this heavy-duty unit provides maximum sound attenuation while prioritizing exhaust gas velocity. Delivering a refined Touring sound level signature, it efficiently minimizes harsh tones and underbody drone, replacing it with a smooth, deep, controlled exhaust profile. It features a fully bidirectional, reversible internal free-flow design, giving fabricators absolute flexibility to position the unit in either orientation during installation under the vehicle.
Built to withstand extreme diesel and gas thermal environments, this universal muffler features 100-percent welded construction crafted entirely from premium T-304 austenitic stainless steel to deliver superior structural stability over lower-grade 400-series metal alternatives. The internal core is packed with high-temperature continuous-filament fiber (CFF) acoustic sound absorption materials to ensure permanent sound control that will not degrade or blow out over time. This version comes engineered with an un-notched neck configuration at both the 2.75-inch center inlet and 2.75-inch center outlet, making it ideal for standard weld-in installation. Built in the USA, this component comes backed by Borla's iconic lifetime Million-Mile Warranty.
Features
- Touring sound level configuration delivers elite sound control with a deep, smooth acoustic note
- Heavy-duty 24" elongated case design is ideally engineered for full-size trucks and larger SUV builds
- Reversible free-flow design gives total installation versatility with unrestricted internal exhaust flow
- Un-notched neck connection configuration facilitates clean, reliable weld-in underbody installation
- Packed with premium continuous-filament fiber (CFF) acoustic media for enduring sound absorption
- Constructed from high-grade T-304 austenitic stainless steel for permanent protection against rust
- Natural mill exterior finish can easily be custom brushed or polished before final fitment
- Proudly manufactured in the USA and backed by Borla's legendary lifetime Million-Mile Warranty
Specifications
Muffler Dimensions & Configuration:
- Muffler Tubing Size (Inlet / Outlet): 2.75" Internal Diameter
- Configuration: Center Inlet / Center Outlet
- Case Shape: 7.75" Round Body
- Case Length: 24"
- Overall Length (OAL): 29"
- Neck Style: Un-Notched (For Secure Weld-In Applications)
Universal Fitment Note:
This is a component-level universal part. It is not a direct year, make, or model bolt-on assembly. Fabricators must measure clearance, verify tubing paths, and check overall dimensional parameters under the vehicle prior to cutting or installing.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
