Muffler Delete Pipes

This Resonator is designed to replace the Merge X-Pipe in select BORLA® 140590 and 140591 Cat-Back systems to dampen the sound. It is NOT designed to work with competitors or Original Equipment (O.E.) systems. The resonator contains an internal H-Pipe for increased performance and improved sound. Dual 2.25″ diameter inlets, dual 2.5″ outlet. Resonator features an internal H-Pipe for increased performance and improved sound. Built from premium T-304 stainless steel, superior to T-400 series (such as 409) to give you the absolute best in performance and durability. Precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all, BORLA® stands behind every Resonator with a Million-Mile Warranty. Just what you’d expect from the world’s most experienced (and most winning) exhaust brand.
Touring Resonator 2015-2017 Ford Mustang GT/ GT Convertible 5.0L V8 Automatic/ Manual Transmission Rear Wheel Drive 2 Door Equipped With Borla® Systems. Does NOT Fit Competitors Or Original Equipment Systems.
Million Mile Warranty
2015-2017 Ford Mustang GT/ GT Convertible 5.0L V8 Automatic/ Manual Transmission Rear Wheel Drive 2 Door Equipped With BORLA® Systems. Does NOT Fit Competitors Or Original Equipment Systems.

• Use w/PN140590 or 140591 For Quieter Sound
• 2.25 in. Into Muffler 2.25 in. Out
• T-304 Stainless Steel
• Touring Resonator
• 2.25 in. Inlet
• 2.5 in. Outlet
• Dual/Dual

ProXS™ Muffler 2.25″ Dual Inlet/ 2.25″ Dual Outlet, 4″ x 9.5″ Oval, 19″ Long Body, 24″ Overall Length. Un-Notched necks are designed for weld in installation. If clamping, use 3″ wide band clamps 18003 (clamps not included). This muffler features an internal X-Pipe for increased performance and improved sound. Reversible design for installation flexibility. T-304 Stainless steel will never rust. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. Best of all, it’s made in the USA and backed by BORLA®’s Million-Mile warranty. Just what you’d expect from the world’s most experienced (and most winning) exhaust brand.
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.
Million Mile Warranty

• Un-Notched necks are designed for weld in installation. If clamping, use 3″ wide band clamps 18003.
• Universal muffler. Reversible design. Dual Inlet, dual outlet. Contains an internal X-Pipe.
• 2.25″ Dual Inlet/ 2.25″ Dual Outlet, 4″ x 9.5″ Oval, 19″ Long Body, 24″ Overall Length
• Alternate muffler with Notched necks is 400492. Use 1″ wide band clamps 18322.

Compact size is perfect for applications with limited space. Reversible design for installation flexibility. High-quality T-304 austenitic stainless steel will never rust. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation.
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.
Million Mile Warranty

ProXS™ Muffler 2.5″ Dual Inlet/ 2.5″ Dual Outlet, 4″ x 9.5″ Oval, 19″ Long Body, 24″ Overall Length. Un-Notched necks are designed for weld in installation. If clamping, use 3″ wide band clamps 18004 (clamps not included). This muffler features an internal X-Pipe for increased performance and improved sound. Reversible design for installation flexibility. T-304 Stainless steel will never rust. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. Best of all, it’s made in the USA and backed by BORLA®’s Million-Mile warranty. Just what you’d expect from the world’s most experienced (and most winning) exhaust brand.
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.
Million Mile Warranty

• Un-Notched necks are designed for weld in installation. If clamping, use 3″ wide band clamps 18004.
• Universal muffler. Reversible design. Dual inlet, dual outlet. Contains an internal X-Pipe.
• 2.5″ Dual Inlet/ 2.5″ Dual Outlet, 4″ x 9.5″ Oval, 19″ Long Body, 24″ Overall Length
• Alternate muffler with Notched necks is 400493. Use 1″ wide band clamps 18325.

Compact size is perfect for applications with limited space. Reversible design for installation flexibility. High-quality T-304 austenitic stainless steel will never rust. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation.
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.
Million Mile Warranty

Developed for truck applications. Reversible design for installation flexibility. Previously part number know as 19131346. This muffler is considered a “Touring” muffler when compared to the 400130 and used on the same application. Notched necks for clamp-on installation. Reversible design for installation flexibility. High-quality T-304 Stainless steel will never rust. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation.
Specialty Heavy Duty (Truck) Muffler – 2.75″ Center Inlet/ 2.75″ Center Outlet 7.75″ Round x 24″ Long Body 29″ Overall Length. Universal Part. Reversible Design. NOTched Necks.

Replace the Polyphonic Harmonizer behind the primary muffler in the Borla(r) ATAK(r) system with muffler 60679 to attain the S-Type sound level (quieter than ATAK(r) ). Built from premium T-304 stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Designed to provide maximum flow & power. Precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all, Borla(r) stands behind every direct fit muffler with a Million-Mile Warranty. Just what you’d expect from the world’s most experienced (and most winning) exhaust brand.
S-Type Muffler 2019-2025 Chevrolet Silverado 1500/ GMC Sierra 1500 6.2L V8 Automatic Transmission 2 & 4 Wheel Drive With Borla(r) ATAK(r) Cat-Back(tm) System.
2019-2025 Chevrolet Silverado 1500/ GMC Sierra 1500 Optional S-Type Muffler

• Can be used in select Borla(r) GM truck ATAK(r) sound level systems to attain the S-Type sound level

(NO 2025 model with 5.7L). This resonator is designed to dampen the sound of select BORLA® Cat-Back™ systems. It is NOT designed to work with competitors or Original Equipment (O.E.) systems. Installation REQUIRES that the small front muffler in the O.E. system is cut out of the system and replaced with the 60667. 3″ I.D. inlet and outlet, 18.875″ overall length. Built from premium, high-quality T-304 austenitic stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all, BORLA® stands behind every direct fit resonator with a Million-Mile Warranty. Just what you’d expect from the world’s most experienced (and most winning) exhaust brand.
Resonator 2019-2026 (NO ’25 W/5.7L) Ram 1500 5.7L V8 AT 2 & 4WD Ext. Cab W/Std. Bed (6′ 4″) 140.5″ WB Crew Cab W/Short Bed (5′ 7″) 144.6″ WB Crew Cab W/Std. Bed (6′ 4″) 153.5″ WB.
Does NOT Fit Competitors Or Original Equipment (O.E.) Systems.
2019-2026 (NO 2025 With 5.7L) Ram 1500 5.7L V8 (including e-Torque) Auto. Trans. 2 & 4 Wheel Drive Quad (Ext.) Cab With Std. Bed (6′ 4″) 140.5″ Wheelbase/ Crew Cab With Short Bed (5′ 7″) 144.6″ Wheelbase/ Crew Cab With Std. Bed (6′ 4″) 153.5″ Wheelbase Equipped With BORLA® System. Includes Rebel & Models With G/T Package. Does NOT Fit Competitors Or Original Equipment (O.E.) Systems.

• REQUIRES cutting the O.E. front pipe. Designed to dampen the sound of select BORLA® systems.
• NOT designed to work with competitors or O.E. systems
• 3″ I.D. inlet and outlet, 18.875″ overall length
• NO 2025 model with 5.7L

This Borla(r) Cat-Back(tm) system has a valve simulator to prevent the Check Engine Light from coming on. It was designed specifically for the 6.2L Silverado 1500 ZR2 and Sierra 1500 AT4X. The 3.5″ diameter system has dual 2.75″ turn down tail pipes and features the classic Borla(r) S-Type sound with no drone inside the vehicle. Replace the small muffler behind the primary muffler in the “S-Type” system with Polyphonic Harmonizer 60680 to attain the “ATAK(r)” sound level (louder than “S-Type”). Optional “True Dual” Cat-Back(tm) system available. Borla(r) Cat-Back(tm) & Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla(r) Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 austenitic stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Give your ZR2 or AT4X the sound it deserves, bolt on a Borla(r). Best of all, Borla(r) stands behind every system with a Million-Mile Warranty. Just what you’d expect from the world’s most experienced (and most winning) exhaust brand.
S-Type Cat-Back(tm) Exhaust System 2024-2025 Chevrolet Silverado 1500 ZR2/ GMC Sierra 1500 AT4X 6.2L V8 Automatic Transmission 4WD Crew Cab With Short Bed (5′ 9″) 147.4″ Wheelbase/Turn Down Tail Pipes/Borla(r) System Has A Valve Simulator.
2024-2025 Chevrolet Silverado 1500 ZR2/ GMC Sierra 1500 AT4X 6.2L V8 AT 4 Wheel Drive Crew Cab With Short Bed (5′ 9″) 147.4″ Wheelbase. Turn Down Tail Pipes. Borla(r) System Has A Valve Simulator.

• Polyphonic Harmonizer 60680 can be added to this system to attain the ATAK(r) sound level
• Borla(r) system has a valve simulator to prevent the Check Engine Light from coming on
• Features turn down tail pipes
• Fits ZR2 & AT4X models

This Resonator is designed to dampen the sound of the Borla(r) Bronco 2.3L High Clearance Climber / Rock Crawler systems. It is NOT designed to work with competitors or Original Equipment systems. 2.75″ diameter inlet and turn down outlet. Built from premium, high-quality T-304 austenitic stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all, Borla(r) stands behind every direct fit resonator with a Million-Mile Warranty. Just what you’d expect from the world’s most experienced (and most winning) exhaust brand.
Optional Muffler 2021-2025 Ford Bronco 2.3L 4 Cyl./ 2.7L 6 Cyl/Automatic/ Manual Transmission 4 Wheel Drive 2 & 4 Door/Optional Muffler For Borla(r) High Clearance Climber/ Rock Crawler Systems.
2021-2025 Ford Bronco 2.3L 4 Cyl./ 2.7L 6 Cyl. AT/MT 4 Wheel Drive 2 & 4 Door. Optional Muffler For Borla(r) High Clearance Climber/ Rock Crawler Systems.

• Designed to dampen the sound of the Borla(r) Bronco 2.3L high clearance Climber systems
• NOT designed to work with competitors or Original Equipment systems
• See below for Additional Product Features & Benefits
• 2.75″ diameter inlet and outlet

High quality austenitic stainless steel. Patented, race-winning XR-1 Raceline technology. 3 options: Offset – Made with the same patented, flow through design as the XR-1 Sportsman oval. The inlet/outlet are offset to the same side of the muffler, to accommodate transmission and frame rail interference on some applications Oval — BORLAs #1 selling racing muffler. Satisfies the needs of most racing applications because it is the lightest, most compact, and highest flowing racing muffler in its class and at a competitive price. Record-holder Hurley Blakeney has run BORLAs on his AA/AT Ford T-Bird because he loves the quieter driver compartment without giving up any power.Round – Made with the same patented, flow through design as the XR-1 Sportsman Oval. This Muffler is 5 inches in diameter and 15 inches long. Designed for door car/ roadster applications that require a compact round muffler.
XR-1® Sportsman Racing Muffler – 3.5″ Center Inlet/ 3.5″ Center Outlet 5″ Round x 8″ Long Body 13″ Overall Length. Universal Part. Reversible Design.
Million Mile Warranty

• 3.5″ Center Inlet/ 3.5″ Center Outlet 5″ Round x 8″ Long Body 13″ Overall Length
• Compact size is perfect for applications with limited space
• Un-Notched necks are designed for weld in installation
• There is no logo embossment on this part
• Universal muffler. Reversible design.

XR-1® Multi-Core Racing Muffler. 3″ Center Inlet/ 3″ Center Outlet 5.5″ x 8.5″ Oval x 34″ Long Body 39.25″ Overall Length. Designed for Pre-Runner trucks. Long body design works well on SUVs & trucks but can be used on a wide range of other vehicles including rotary engine equipped vehicles. Body has reinforcing ribs. It features BORLA®’S patented Multi-Core 4 tube design for maximum flow, horsepower, and torque. The Multi-Core portion of XR-1® mufflers flows better than straight tubing. Recommend for high horsepower applications. Reversible design for installation flexibility. T-304 Stainless steel will never rust. Natural mill finish can be brushed or polished prior to installation. 100% welded construction for strength. High temperature T-304 stainless steel wool packing for sound control. There is no BORLA® logo embossment on this part. Best of all, it’s made in the USA. Just what you’d expect from the world’s most experienced (and most winning) exhaust brand.
XR-1® Multi-Core Racing Muffler Pre-Runner Vehicles – 3″ Center Inlet/ 3′ Center Outlet 5.5″ x 8.5″ Oval x 34″ Long Body 39.25″ Overall Length. Universal Part. Reversible Design.
Million Mile Warranty

• Designed for Pre-Runner vehicles, but can be used on other applications including rotary engines
• Multi-Core 4 tube internal design. High temperature T-304 stainless steel wool for sound control
• 3″ Center Inlet/ 3″ Center Outlet 5.5″ x 8.5″ Oval x 34″ Long Body 39.25″ Overall Length
• Universal Muffler. Reversible Design. No BORLA® logo embossement.
• Long body design works well on SUV & truck applications