Borla 2.75" Center Inlet / Center Outlet Heavy Duty Truck Universal Muffler - Un-Notched Necks (401664)
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 a balanced blend of sound control and high-performance exhaust gas velocity. Delivering an aggressive S-Type sound level signature, it dials in a deep, throaty rumble under acceleration while managing underbody resonance to keep your cabin comfortable. 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 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
- Aggressive S-Type sound profile delivers a deep, sporty exterior tone with excellent volume control
- 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: 6.75" 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
