Borla ProXS 19” Un-Notched Muffler with 3” Offset Inlet/Offset Outlet
Highlights
- Universal, Oval Muffler
- 3" T-304 Steel Tubing
- Free Flow Design
- Completely Drone-Free
Borla ProXS 19” Un-Notched Muffler with a 3” Offset Inlet and Offset Outlet.
Built to be free flowing, any vehicle can achieve top-notch performance with Borla’s ProXS 19” Un-Notched Muffler (40353)! To handle the demands of every make and model, this oval muffler is fabricated from high quality T-304 stainless steel. Afterwards, its 100% welded to fend off rusting over time, making its 3” tubing highly resilient. A high-temperature, CFF acoustic material lines it, giving you the luxury of drone-free cruising. Users can choose to install it by using the un-notched necks to weld it on. Alternatively, you can clamp it on using 3” wide, band-style clamps that are also from Borla.
Features and Benefits:
- Universal, oval-shaped muffler
- 3” 100% welded, T-304 stainless steel tubing
- Rust-resistant construction
- Free flow design improves performance
- Uses high-temp, continuous-filament fiber (CFF) material
- Won’t cause droning
- Completely reversible
- Necks are un-notched for weld-on installation
- Can clamp on w/ 3” wide, band-style clamps
Specifications:
- Overall length: 19”
- Case dimensions: 14” X 4” X 9-1/2”
- Offset inlet & offset outlet: 3”
Please Note: Clamps are not included; they can be purchased under Borla P/N: 18006.
California Residents: Proposition 65 Warning
Related Categories: Mustang Parts, Mustang Exhaust, Mustang Mufflers, Ford Focus ST Parts, Ford F-150 Raptor Parts

Vehicle Fitment
This product will fit the following Bronco years:
This product will fit the following C/K years:
- 1988,
- 1989,
- 1990,
- 1991,
- 1992,
- 1993,
- 1994,
- 1995,
- 1996,
- 1997,
- 1998,
This product will fit the following C10 years:
- 1960,
- 1961,
- 1962,
- 1963,
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
- 1974,
- 1975,
- 1976,
- 1977,
- 1978,
- 1979,
- 1980,
- 1981,
- 1982,
- 1983,
- 1984,
- 1985,
- 1986,
- 1987,
This product will fit the following F-100 years:
- 1948,
- 1949,
- 1950,
- 1951,
- 1952,
- 1953,
- 1954,
- 1955,
- 1956,
- 1957,
- 1958,
- 1959,
- 1960,
- 1961,
- 1962,
- 1963,
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
- 1974,
- 1975,
- 1976,
- 1977,
- 1978,
- 1979,
This product will fit the following F-150 years:
This product will fit the following Focus years:
This product will fit the following Mustang years:
- 1964.5,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
- 1974,
- 1975,
- 1976,
- 1977,
- 1978,
- 1979,
- 1980,
- 1981,
- 1982,
- 1983,
- 1984,
- 1985,
- 1986,
- 1987,
- 1988,
- 1989,
- 1990,
- 1991,
- 1992,
- 1993,
- 1994,
- 1995,
- 1996,
- 1997,
- 1998,
- 1999,
- 2000,
- 2001,
- 2002,
- 2003,
- 2004,
- 2005,
- 2006,
- 2007,
- 2008,
- 2009,
- 2010,
- 2011,
- 2012,
- 2013,
- 2014,
- 2015,
- 2016,
- 2017,
- 2018,
- 2019,
- 2020,
- 2021,
- 2022,
- 2023,
- 2024,
- 2025,