Features
- Universal muffler for custom exhaust applications
- 2.5-inch offset inlet and 2.5-inch offset outlet
- Reversible design for installation flexibility
- T-304 stainless steel construction for corrosion resistance
- Fully welded construction for added strength
- Free-flow design for improved exhaust performance
- High-temperature continuous-filament fiber acoustic material
- Natural mill finish suitable for brushing or polishing
- Made in the USA with Borla's Million-Mile warranty
Description
Upgrade a custom exhaust system with the Borla ProXS Muffler, Part 40352. This universal performance muffler features a 2.5-inch offset inlet and 2.5-inch offset outlet in a compact oval body designed for weld-in installation. Its reversible layout provides added flexibility when positioning the muffler within a custom exhaust system, making it suitable for a variety of fabrication and routing requirements.
Constructed from premium T-304 austenitic stainless steel, the Borla ProXS Muffler is engineered for excellent corrosion resistance and long-term durability. The fully welded construction provides strength and dependable performance, while the free-flow design helps support efficient exhaust flow. High-temperature continuous-filament fiber acoustic material helps control sound without restricting the performance-focused design.
Feature: Universal muffler for custom exhaust applications.
The un-notched necks are intended for weld-in installation. If a clamped installation is preferred, use Borla 3-inch-wide band clamps, sold separately. The muffler has a single offset inlet and outlet with pipe-style connections and a performance-grade design. Professional installation or custom exhaust fabrication is recommended. This product includes a California Proposition 65 warning related to exposure during operations such as welding, brazing, or thermal cutting.
Specifications
| Material | T-304 Stainless Steel |
|---|---|
| Construction | All Welded |
| Grade | Performance |
| Off-Road Use Only | No |
| California Prop 65 | WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov |



