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Borla proxs universal muffler. Match the dimensions, pipe connections and installation method to your exhaust. Construction: T-304 stainless steel. Supplied finish: Natural mill. The muffler can be installed in either flow direction. Clamps are supplied separately.
Application: Universal exhaust component. Dimensions and connection layout depend on the selected SKU; compare the variant specifications before installation.
| SKU / option | Borla technical table specification | Installation and care requirements |
|---|---|---|
| 40344 — 2" / Oval / 14" X 4" X 9.5" / 19" overall / Offset/Center | Borla application panel: ProXS™ Muffler 2" Offset Inlet/ 2" Center Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Offset/Center; Muffler Shape: Oval; Muffler Tubing Size: 2"; Case Dimensions: 14" X 4" X 9.5"; Muffler Oal: 19" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with notched necks is 400476 (use 1" wide band clamps 18302). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40346 — 2" / Oval / 14" X 4" X 9.5" / 19" overall / Offset/Offset | Borla dimensional drawing: ProXS™ Muffler 2" Offset Inlet/ 2" Offset Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Offset/Offset; Muffler Shape: Oval; Muffler Tubing Size: 2"; Case Dimensions: 14" X 4" X 9.5"; Muffler Oal: 19" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400488 (use 1" wide band clamps 18302). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40347 — 2" / Oval / 14" X 4" X 9.5" / 19" overall / Center/Center | Borla application panel: ProXS™ Muffler 2" Center Inlet/ 2" Center Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Center/Center; Muffler Shape: Oval; Muffler Tubing Size: 2"; Case Dimensions: 14" X 4" X 9.5"; Muffler Oal: 19" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400494 (use 1" wide band clamps 18302). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40348 — 2.5" Inlet/ Dual 2.5" Outlet / Oval / 19" X 4" X 9.5" / 24" overall / Center/Dual | Borla dimensional drawing: ProXS™ Muffler 2.5" Center Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Center/Dual; Muffler Shape: Oval; Muffler Tubing Size: 2.5" Inlet/ Dual 2.5" Outlet; Case Dimensions: 19" X 4" X 9.5"; Muffler Oal: 24" | If clamping use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400478 (use 1" wide band clamps 18325). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40349 — 3" Inlet/ Dual 2.5" Outlet / Oval / 19" X 4" X 9.5" / 24" overall / Center/Dual | Borla dimensional drawing: ProXS™ Muffler 3" Center Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Center/Dual; Muffler Shape: Oval; Muffler Tubing Size: 3" Inlet/ Dual 2.5" Outlet; Case Dimensions: 19" X 4" X 9.5"; Muffler Oal: 24" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400487 (use 1" wide band clamps 18325 & 18330). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40351 — 2.25" / Oval / 14" X 4" X 9.5" / 19" overall / Offset/Offset | Borla application panel: ProXS™ Muffler 2.25" Offset Inlet/ 2.25" Offset Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Offset/Offset; Muffler Shape: Oval; Muffler Tubing Size: 2.25"; Case Dimensions: 14" X 4" X 9.5"; Muffler Oal: 19" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400489 (use 1" wide band clamps 18322). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40352 — 2.5" / Oval / 14" X 4" X 9.5" / 19" overall / Offset/Offset | Borla application panel: ProXS™ Muffler 2.5" Offset Inlet/ 2.5" Offset Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Offset/Offset; Muffler Shape: Oval; Muffler Tubing Size: 2.5"; Case Dimensions: 14" X 4" X 9.5"; Muffler Oal: 19" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400490 (use 1" wide band clamps 18325). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40353 — 3" / Oval / 14" X 4" X 9.5" / 19" overall / Offset/Offset | Borla application panel: ProXS™ Muffler 3" Offset Inlet/ 3" Offset Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Offset/Offset; Muffler Shape: Oval; Muffler Tubing Size: 3"; Case Dimensions: 14" X 4" X 9.5"; Muffler Oal: 19" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400491 (use 1" wide band clamps 18330). High-quality T-304 austenitic stainless steel for superior corrosion reistance. 100% welded construction for strength. |
| 40357 — 2.25" / Oval / 14" X 4" X 9.5" / 19" overall / Offset/Center | Borla application panel: ProXS™ Muffler 2.25" Offset Inlet/ 2.25" Center Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Offset/Center; Muffler Shape: Oval; Muffler Tubing Size: 2.25"; Case Dimensions: 14" X 4" X 9.5"; Muffler Oal: 19" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400478 (use 1" wide band clamps 18322). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40358 — 2.5" / Oval / 14" X 4" X 9.5" / 19" overall / Offset/Center | Borla application panel: ProXS™ Muffler 2.5" Offset Inlet/ 2.5" Center Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Offset/Center; Muffler Shape: Oval; Muffler Tubing Size: 2.5"; Case Dimensions: 14" X 4" X 9.5"; Muffler Oal: 19" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400480 (use 1" wide band clamps 18325). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40359 — 3" / Oval / 14" X 4" X 9.5" / 19" overall / Offset/Center | Borla application panel: ProXS™ Muffler 3" Offset Inlet/ 3" Center Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Offset/Center; Muffler Shape: Oval; Muffler Tubing Size: 3"; Case Dimensions: 14" X 4" X 9.5"; Muffler Oal: 19" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400482 (use 1" wide band clamps 18330). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40363 — 2.25" / Oval / 14" X 4" X 9.5" / 19" overall / Center/Center | Borla application panel: ProXS™ Muffler 2.25" Center Inlet/ 2.25" Center Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Center/Center; Muffler Shape: Oval; Muffler Tubing Size: 2.25"; Case Dimensions: 14" X 4" X 9.5"; Muffler Oal: 19" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400495 (use 1" wide band clamps 18322). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40364 — 2.5" / Oval / 14" X 4" X 9.5" / 19" overall / Center/Center | Borla application panel: ProXS™ Muffler 2.5" Center Inlet/ 2.5" Center Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Center/Center; Muffler Shape: Oval; Muffler Tubing Size: 2.5"; Case Dimensions: 14" X 4" X 9.5"; Muffler Oal: 19" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400496 (use 1" wide band clamps 18325). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40657 — 2" / Oval / 14" X 4.25" X 7.88" / 19" overall / Offset/Center | Borla application panel: ProXS™ Muffler 2" Offset Inlet/ 2" Center Outlet, 4.25" x 7.88" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Offset/Center; Muffler Shape: Oval; Muffler Tubing Size: 2"; Case Dimensions: 14" X 4.25" X 7.88"; Muffler Oal: 19" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400477 (use 1" wide band clamps 18302). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40658 — 2.25" / Oval / 14" X 4.25" X 7.88" / 19" overall / Offset/Center | Borla application panel: ProXS™ Muffler 2.25" Offset Inlet/ 2.25" Center Outlet, 4.25" x 7.88" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Offset/Center; Muffler Shape: Oval; Muffler Tubing Size: 2.25"; Case Dimensions: 14" X 4.25" X 7.88"; Muffler Oal: 19" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400479 (use 1" wide band clamps 18322). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40659 — 2.5" / Oval / 14" X 4.25" X 7.88" / 19" overall / Offset/Center | Borla application panel: ProXS™ Muffler 2.5" Offset Inlet/ 2.5" Center Outlet, 4.25" x 7.88" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Offset/Center; Muffler Shape: Oval; Muffler Tubing Size: 2.5"; Case Dimensions: 14" X 4.25" X 7.88"; Muffler Oal: 19" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400481 (use 1" wide band clamps 18325). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40664 — 2.25" / Oval / 19" X 4" X 9.5" / 24" overall / Offset/Center | Borla application panel: ProXS™ Muffler 2.25" Offset Inlet/ 2.25" Center Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Offset/Center; Muffler Shape: Oval; Muffler Tubing Size: 2.25"; Case Dimensions: 19" X 4" X 9.5"; Muffler Oal: 24" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400483 (use 1" wide band clamps 18322). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40665 — 2.5" / Oval / 19" X 4" X 9.5" / 24" overall / Offset/Center | Borla application panel: ProXS™ Muffler 2.5" Offset Inlet/ 2.5" Center Outlet, 4" x 9.5"" Oval, 19" Long Body, 24" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Offset/Center; Muffler Shape: Oval; Muffler Tubing Size: 2.5"; Case Dimensions: 19" X 4" X 9.5"; Muffler Oal: 24" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400484 (use 1" wide band clamps 18325). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 40670 — 3" Inlet/ Dual 2.25" Outlet / Oval / 19" X 4" X 9.5" / 24" overall / Center/Dual | Borla dimensional drawing: ProXS™ Muffler 3" Center Inlet/ 2.25" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Center/Dual; Muffler Shape: Oval; Muffler Tubing Size: 3" Inlet/ Dual 2.25" Outlet; Case Dimensions: 19" X 4" X 9.5"; Muffler Oal: 24" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400486 (use 1" wide band clamps 18322 &18330). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 400286 — 2.5" / Oval / 19" X 4" X 9.5" / 24" overall / Dual/Dual | Borla application panel: ProXS™ Muffler 2.5" Dual Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Internal X-Pipe. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Dual/Dual; Muffler Shape: Oval; Muffler Tubing Size: 2.5"; Case Dimensions: 19" X 4" X 9.5"; Muffler Oal: 24" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400493 (use 1" wide band clamps 18325). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
| 400287 — 2.25" / Oval / 19" X 4" X 9.5" / 24" overall / Dual/Dual | Borla application panel: ProXS™ Muffler 2.25" Dual Inlet/ 2.25" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Internal X-Pipe. Universal Part. Reversible Design.; Borla technical table: Muffler Config: Dual/Dual; Muffler Shape: Oval; Muffler Tubing Size: 2.25"; Case Dimensions: 19" X 4" X 9.5"; Muffler Oal: 24" | If clamping, use wide (2 bolt style) band clamps (clamps NOT included). Alternate muffler with Notched necks is 400492 (use 1" wide band clamps 18322). High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. |
Check Borla's installation instructions for the selected part number before fitting.
