Upgrade your custom exhaust system with the Kooks Universal 3-inch Round Muffler. Engineered for street, race, and off-road applications, this 14-inch long muffler is designed to maximize exhaust flow and power. Part of a 50-year legacy in high-performance exhaust development, every Kooks muffler is handcrafted in the USA and dyno-tested to ensure it meets professional racing standards.

• Material: Manufactured from T304 aircraft-quality stainless steel for maximum durability and corrosion resistance.
• Finish: Polished stainless steel exterior for a high-quality, show-ready appearance.
• Fitment: Universal 3-inch round design for custom exhaust fabrication and versatile chassis placement.
• Testing: Every Kooks product is dyno and race-tested to ensure optimal performance gains.
• Dimensions: 3-inch inlet/outlet diameter with a 14-inch body length.
• Warranty: Includes a limited lifetime warranty to the original purchaser.
• Manufacturer Part Number: R300-14

The Kooks R300-10 is a high-performance universal round muffler engineered for custom exhaust applications where maximum flow and durability are paramount. Designed for street, race, and off-road builds, this muffler features a high-flow internal design to reduce backpressure and optimize exhaust scavenging.

Constructed from heavy-duty T304 aircraft-quality stainless steel, the R300-10 is built to withstand extreme temperatures and resist corrosion over time. The polished finish ensures a professional, show-ready appearance. As a universal component, this muffler is designed to be integrated into custom 3-inch exhaust systems by professional fabricators.

• Manufacturer Part Number: R300-10
• Inlet/Outlet Diameter: 3 inches
• Body Length: 10 inches
• Body Shape: Round
• Material: T304 Stainless Steel
• Finish: Polished
• Handcrafted in the USA
• Limited Lifetime Warranty to the original purchaser

The Kooks KO300-12 Universal Oval Muffler is engineered for high-performance street and racing applications where flow efficiency and structural durability are critical. Handcrafted in the USA from premium T304 stainless steel, this muffler is designed to withstand extreme exhaust temperatures and corrosive conditions. Its compact 4" x 8" x 12" oval body offers versatile fitment for custom exhaust builds, providing a performance-oriented sound without sacrificing ground clearance.

• Configuration: 3" Center Inlet / 3" Center Outlet
• Body Dimensions: 4" Height x 8" Width x 12" Length
• Material: Heavy-duty T304 stainless steel construction
• Performance: Dyno and race tested to ensure maximum power output and scavenging
• Manufacturing: 100% Hand-built in the USA
• Warranty: Limited Lifetime Warranty for the original purchaser
• Part Number: KO300-12

This Kooks universal oval muffler is engineered for high-performance street, race, and off-road applications. Featuring a 2.5-inch center inlet and center outlet, this muffler provides a streamlined exhaust path designed to reduce backpressure and maximize power output. The 4" x 8" x 12" oval body offers a compact profile for versatile installation in custom exhaust configurations.

Constructed from T304 aircraft-quality stainless steel, the KO250-12 is built to withstand extreme heat and corrosion. Every Kooks muffler is handcrafted in the USA and undergoes rigorous dyno and race testing to ensure it meets the performance standards required by championship-winning teams. This muffler provides the durability and signature tone Kooks is known for, backed by a limited lifetime warranty.

• Inlet/Outlet Diameter: 2.5-inch (2-1/2")
• Configuration: Center Inlet / Center Outlet
• Body Dimensions: 4" H x 8" W x 12" L
• Material: T304 Aircraft-Quality Stainless Steel
• Finish: Natural Stainless Steel
• Handcrafted in the USA
• Limited lifetime warranty for the original purchaser
• Manufacturer Part Number: KO250-12

The HKS Hi-Power Universal Stainless Steel Muffler (MPN 34005-FK002) is engineered for custom exhaust fabrication, delivering the signature aggressive exhaust note and high-flow performance HKS is known for. This universal muffler utilizes a straight-through design to minimize backpressure, allowing for improved exhaust gas velocity and engine efficiency.

Built for durability and aesthetics, the muffler features a high-grade stainless steel body and a 130mm shell. The assembly is finished with a heat-treated titanium tip, providing a race-inspired look for bespoke exhaust systems. Whether you are building a custom setup for the street or the track, this component offers the build quality and flow characteristics required for high-performance applications.

• Manufacturer Part Number: 34005-FK002
• Series: Hi-Power (Universal)
• Shell Diameter: 130mm
• Material: Stainless Steel body with Titanium tip
• Design: High-flow straight-through configuration
• Ideal for custom exhaust fabrication and bespoke tuning projects

The HKS Hi-Power Universal Stainless Steel Muffler is engineered for high-performance applications where maximizing exhaust flow is critical. Inspired by endurance racing designs, this muffler features a straight-through internal structure to reduce backpressure and improve engine response. The 170mm shell is constructed from high-grade stainless steel for corrosion resistance, while the signature titanium tip provides a premium, race-ready aesthetic.

• Manufacturer Part Number: 34005-FK001
• Product Line: Hi-Power
• Shell Size: 170mm
• Body Material: Stainless Steel
• Tip Material: Titanium
• Design: Straight-through for optimal exhaust gas velocity

As a universal component, this muffler requires custom fabrication for installation on your specific vehicle exhaust system. It delivers the distinct HKS exhaust note while maintaining high-quality construction and durability.

The HKS Universal Exhaust Hanger Mount (EX H/M SUS 130-75) is a high-durability solution designed to secure aftermarket exhaust systems and eliminate excessive movement. This heavy-duty hanger is engineered to replace soft, worn-out factory rubber mounts, providing a much more stable mounting point that prevents the exhaust from swaying or contacting the chassis during aggressive driving.

Ideal for custom exhaust fabrication or for vehicles requiring specific clearance adjustments, this universal mount features the build quality expected from HKS. The robust construction ensures long-term resistance to heat and fatigue, maintaining the proper alignment of your exhaust tips and preventing stress on your manifold and mid-pipe joints.

• Manufacturer Part Number: 34002-AK008
• Series: EX H/M SUS
• Model ID: 130-75
• Hole Spacing: 75mm
• Overall Length: 130mm
• Application: Universal fitment

The HKS Universal Exhaust Hanger Mount is designed to provide superior support and stabilization for aftermarket or OE exhaust systems. This heavy-duty hanger replaces worn-out or soft factory rubber mounts to reduce exhaust sway and prevent unwanted contact with the chassis or bumper cutouts during spirited driving.

• Manufacturer Part Number: 34002-AK007
• Product Type: Universal Exhaust Hanger Mount
• Size/Specification: 130-65
• Dampens vibrations and maintains exhaust system alignment
• Engineered for high-heat resistance and long-term durability

The GReddy Universal 115mm Muffler Tip Silencer (MPN 11001200) is a precision-engineered insert designed to manage exhaust volume on high-performance vehicles. This component provides a significant reduction in decibel levels and helps eliminate cabin drone, making it an essential tool for daily driving or meeting strict noise requirements at many race tracks.

• Fits exhaust systems with a 115mm outer diameter tip.
• Engineered to reduce sound output while maintaining adequate flow for street use.
• Simple bolt-in installation (typically requires a mounting hole in the muffler tip).
• Durable construction to withstand high exhaust temperatures.
• Manufacturer Part Number: 11001200.

Refresh or customize your exhaust system with the GReddy Revolution RS Stainless Steel Tip. Designed specifically as a replacement or optional upgrade for universal 3-inch (76mm) Revolution RS mufflers, this tip allows you to maintain the signature GReddy look or replace a damaged exit without swapping the entire muffler canister.

• Product Line: Revolution RS
• Material: Polished Stainless Steel
• Outer Diameter: 115mm
• Total Length: 120mm
• Compatibility: Fits GReddy Universal 3.0" Revolution RS Mufflers
• Manufacturer Part Number: 11001140

Constructed from high-grade stainless steel for corrosion resistance and durability, this tip features a precision-finished edge. It is engineered for a secure fit on the 3-inch muffler body, ensuring a professional, leak-free appearance at the rear of your vehicle.

The GReddy Revolution series universal muffler (MPN 11001130) is a high-performance component designed for custom exhaust fabrication. This 3.0-inch inlet muffler features a straight-through internal design to maximize exhaust flow and reduce backpressure, providing the signature GReddy sound and performance for bespoke builds.

Engineered for durability and precision, this universal muffler is an ideal choice for fabricators and enthusiasts looking to replace a restrictive factory unit or complete a high-diameter custom exhaust system. Its compact revolution-style body allows for versatile mounting in various chassis configurations.

• Series: Revolution
• Type: Universal Muffler
• Inlet Diameter: 3.0 in
• Design: Straight-through high-flow
• Manufacturer Part Number: 11001130

The Gibson MWA (Muffler With Attitude) Superflow BM0112 is a high-flow, straight-through oval muffler designed for universal application on custom exhaust systems. Engineered for maximum performance, the MWA design flows at a rate only 3 CFM less than a 3-inch straight pipe, virtually eliminating backpressure while maintaining a deep, aggressive exhaust note without the use of internal packing or baffles that can degrade over time.

• Design: Straight-through flow path with no internal baffles, packing, or weak deflectors.
• Construction: High-quality stainless steel for corrosion resistance and durability.
• Form Factor: Low-profile non-directional 4x9x14-inch oval body.
• Inlet/Outlet: Dual 3.00-inch ID inlets and dual 3.00-inch ID outlets.
• Performance: High-velocity flow with minimal interior drone.
• Manufacturing: 100% Made in the USA.
• MPN: BM0112

The Gibson MWA (Muffler With Attitude) Superflow series is engineered for maximum exhaust flow and an aggressive sound profile. Featuring a straight-through design, this muffler flows within 3cfm of a standard 3-inch straight pipe, significantly reducing backpressure to improve power potential. Unlike traditional performance mufflers, the MWA contains no internal packing, weak baffles, or deflectors, ensuring the sound and flow characteristics do not degrade over time.

Constructed from high-quality stainless steel for long-term durability, this 4x9x14-inch oval muffler uses a non-directional design to provide flexibility during custom exhaust fabrication. It is designed to deliver a powerful external note while keeping interior drone to a minimum, making it an ideal choice for performance trucks, SUVs, and street applications.

• Series: MWA Superflow
• Case Dimensions: 4in x 9in Oval; 14in Body Length
• Inlet/Outlet: 3.0in Center Inlet / 2.5in Dual Outlet
• Material: Stainless Steel
• Design: Straight-Through (No Packing or Baffles)
• Manufacturing: Made in the USA
• Part Number: BM0109

The Gibson MWA (Muffler With Attitude) BM0108 is a high-flow, straight-through oval muffler designed to maximize exhaust velocity and deliver an aggressive sound profile. Engineered for performance applications, this muffler features a 3-inch offset inlet and a 3-inch center outlet, allowing for versatile installation on custom exhaust systems. Its straight-through design is exceptionally efficient, flowing within 3 CFM of a standard 3-inch straight pipe to reduce backpressure and increase power potential.

Constructed from high-quality stainless steel, the MWA series is built to withstand harsh conditions without the use of internal packing, baffles, or weak deflectors that can blow out or deteriorate over time. This lightweight, non-directional design provides a unique, powerful tone while engineering internal resonance to keep cabin drone to a minimum. Every MWA muffler is manufactured in the USA to ensure precision fitment and long-term durability.

• Manufacturer Part Number: BM0108
• Inlet/Outlet: 3.00-inch Offset / 3.00-inch Center
• Case Dimensions: 14-inch Oval Body
• Material: Stainless Steel construction
• Design: Straight-through with no internal packing or baffles
• Performance: Flows within 3 CFM of a 3-inch straight pipe
• Origin: Made in the USA

The Gibson CFT Superflow Dual/Dual Oval Muffler (55105S) uses Convergent Flow Technology to tune your exhaust pulses, utilizing resonance chambers and directional louvered tuning ports to increase exhaust velocity. This 4x9x13-inch stainless steel muffler features a fully welded internal construction and a chambered, non-packed core. By eliminating internal packing materials like fiberglass or wool, this muffler ensures your vehicle maintains its deep, aggressive tone for the long term without the sound degradation common in packed mufflers.

• Inlet/Outlet Diameter: 2.25-inch (Dual/Dual)
• Case Dimensions: 4in x 9in x 13in
• Material: Fully welded stainless steel
• Internal Design: Chambered and louvered with angular induction
• Maintenance: Non-packed design prevents sound blow-out or degradation
• Fitment: Reversible design for flexible installation
• Manufacturer Part Number: 55105S
• Warranty: Lifetime Limited Warranty

The Gibson SFT Superflow Round Muffler (Part #420887) is engineered to deliver a deep, authoritative exhaust note at the tailpipe while keeping drone and interior noise levels significantly lower than traditional aftermarket options. This 8-inch diameter, 24-inch long muffler is designed for high-flow applications, providing the volume efficiency needed to support increased power and torque.

Constructed from fully welded stainless steel, this muffler utilizes a baffled and chambered internal design. By eliminating packing and screens that can burn out or deteriorate over time, Gibson ensures consistent performance and flow characteristics throughout the life of the component. The 3-inch center inlet and 3-inch center outlet allow for unrestricted exhaust scavenging in custom or replacement exhaust systems.

• Part Number: 420887
• Body Shape: 8-inch Round
• Body Length: 24 inches
• Inlet/Outlet: 3.00-inch Center / 3.00-inch Center
• Material: Stainless Steel
• Design: Fully welded, baffled, and chambered
• Internal construction: No packing or screens to blow out

Gibson Marine Power Tip mufflers provide a performance-oriented solution for reducing exhaust noise on transom-mounted systems without restricting engine output. Designed to utilize water for sound dampening, these mufflers effectively lower decibel levels to meet and exceed California SAE J2005 Motorboat Sound Law requirements of 88dB or less. Each muffler features a rolled-edge tip design and is constructed from heavy-duty stainless steel for maximum corrosion resistance in harsh marine environments.

The bolt-on design facilitates a straightforward installation as either a transom-mount or clamp-on application. These units are engineered and tested to ensure minimal to no power loss, providing an efficient path for exhaust gases while significantly improving the sound profile of your vessel.

• Manufacturer Part Number: 310002
• Inlet Diameter: 4 inches
• Overall Length: 4 inches
• Material: Stainless Steel
• Design: Rolled edge tip
• Mounting Type: Transom mount or clamp-on
• Sound Compliance: SAE J2005 Approved (under 88dB)
• Quantity: Sold as a pair (Set of 2)
• Warranty: One Year Limited Warranty

The Diamond Eye Big Dog Quiet Tone muffler is engineered for high-volume exhaust systems that require significant sound attenuation without sacrificing flow efficiency. Featuring a robust baffled internal design, this muffler is specifically built to reduce the harsh exhaust notes and interior drone often associated with large-diameter performance exhaust systems. It is an ideal solution for heavy-duty applications where a quieter, more refined tone is required.

• Construction: Durable aluminized steel for corrosion resistance and longevity.
• Internal Design: Fully baffled to provide maximum sound suppression (Quiet Tone series).
• Configuration: Single Inlet / Single Outlet design.
• Installation: Designed for custom fabrication or as a replacement in 5-inch exhaust systems.

Technical Specifications:

• Inlet/Outlet: 5-inch ID
• Body Diameter: 10-inch
• Body Length: 45-inch
• Overall Length: 51-inch
• Manufacturer Part Number: 800465

The Diamond Eye 460005 muffler is a high-flow exhaust solution designed for performance applications requiring effective sound attenuation without sacrificing exhaust velocity. Constructed from heavy-duty aluminized steel, this muffler offers excellent corrosion resistance and thermal management for long-term durability in demanding environments.

The internal 4-inch louvered core is engineered to break up harsh exhaust notes and drone by creating turbulence along the inner walls while maintaining a straight-through flow path. This design ensures your engine breathes efficiently, making it an ideal choice for heavy-duty diesel or high-displacement gasoline builds where backpressure reduction is critical.

• Material: Durable aluminized steel construction
• Core Design: High-flow louvered internal core
• Inlet/Outlet Diameter: 4.0 inches
• Overall Length: 30.0 inches
• Manufacturing: Precision CNC mandrel-processed components
• Part Number: 460005

Fits select 1989-2021 Dodge D250/D350/W250/W350 and Ram 2500/3500, plus Ford Excursion and F-250/F-350 Super Duty models (5.9L).

Upgrade your diesel exhaust system with the CORSA RSC Technology Muffler, engineered to deliver an aggressive exterior sound profile without the cabin drone common in aftermarket diesel setups. Utilizing patented Reflective Sound Cancellation (RSC) technology, this muffler targets and eliminates specific drone-inducing frequencies while maintaining a high-flow internal design that outperforms restrictive stock units. Constructed from premium 304 stainless steel for long-term durability, it features notched and expanded inlets and outlets to simplify the installation process.

• Drone-Free Cruising: Patented RSC Technology cancels out cabin resonance for a comfortable ride.
• Aggressive Tone: Specifically tuned to provide a deep, powerful exhaust note under acceleration.
• Premium Construction: Made from heavy-duty 304 stainless steel to resist corrosion and heat.
• Installation: Easy cut-and-clamp design requires no welding for most applications.
• Manufacturer Part Number: 8004002
• Included Hardware: Notched and expanded inlets/outlets for secure clamping.
• Origin: Proudly manufactured in the U.S.A.

Fits 2017-2020 Ford F-150 Raptor models (3.5L) in both SuperCab and SuperCrew configurations.

The Corsa Performance 3.0-inch Muffler Upgrade Kit uses patented Reflective Sound Cancellation (RSC) technology to eliminate low-frequency resonance, providing a drone-free experience at highway cruising speeds while delivering a deep, aggressive exhaust note under hard acceleration. This system is engineered specifically for the 3.5L EcoBoost engine, optimizing exhaust acoustics without sacrificing flow or performance.

Constructed from high-quality 304 stainless steel, this kit replaces the restrictive factory muffler. It includes 304 stainless steel adapters that connect directly to the stock tailpipe assembly for a straightforward, bolt-on installation. The design improves exhaust flow by 11.15% over the factory setup and reduces overall vehicle weight by 6 lbs.

• Patented RSC technology for a drone-free cruise
• Flows 11.15% better than the stock exhaust system
• 6 lbs lighter than the OEM muffler assembly
• Premium 304 stainless steel construction
• 3.0-inch diameter tubing with strategic clearance and heat shields
• Direct bolt-on installation; no welding required
• Includes all necessary hardware and detailed instructions
• Manufacturer Part Number: 14398
• Limited Lifetime Warranty
• Made in the U.S.A.

The Borla 60714 T-Flow universal muffler is engineered for custom exhaust applications requiring a transverse configuration. This high-performance muffler features a single 2.5-inch side inlet and dual 2.5-inch offset outlets (one at each end) in a reversible 'T' flow internal pattern for maximum installation flexibility. Built for durability and sound control, it utilizes a free-flow design to reduce backpressure while maintaining a refined exhaust note.

• Premium Construction: Manufactured from T-304 austenitic stainless steel for superior corrosion resistance and long-term durability.
• Robust Build: 100% welded construction ensures structural integrity under high-stress conditions.
• Acoustic Tuning: Packed with high-temperature continuous-filament fiber (CFF) to provide consistent sound suppression without degrading over time.
• Installation: Features un-notched necks designed for secure weld-in installation. For clamp-on applications, use a 3-inch wide band clamp (Borla part number 18004).
• Finish: Natural mill finish that can be brushed or polished to meet your aesthetic requirements.

• Manufacturer Part Number: 60714
• Inlet Diameter: 2.5in (Single side inlet)
• Outlet Diameter: 2.5in (Dual offset outlets)
• Body Dimensions: 4.25in x 9.10in x 18in
• Overall Length: 24in
• Warranty: Borla Million-Mile Warranty

Fits select 2019-2026 Chevrolet Silverado 1500 and GMC Sierra 1500 (6.2L).

This Borla S-Type replacement muffler (MPN: 60679) is specifically engineered for owners currently running a Borla ATAK exhaust system who want to reduce the exterior sound volume. By replacing the Polyphonic Harmonizer located behind the primary muffler in the ATAK configuration, you can achieve the refined, slightly quieter S-Type sound profile without sacrificing exhaust flow or performance.

Constructed from premium T-304 stainless steel, this 3.5-inch diameter muffler offers superior corrosion resistance compared to 409-series alternatives. Each unit is manufactured using precision CNC technology to ensure an exact fit into your existing Borla system. This is a direct-fit component backed by Borla's Million-Mile Warranty.

• Replaces Polyphonic Harmonizer in Borla ATAK systems to reach S-Type sound levels
• 3.5-inch tubing diameter for maximum exhaust flow
• High-grade T-304 stainless steel construction
• CNC-machined for precise fitment and durability
• Manufacturer Part Number: 60679

Authoritative Fitment:

Fits 2019-2024 Ram 1500 models (5.7L) equipped with a 144.6-inch wheelbase and 5'7" box. This front muffler is specifically engineered to dampen the sound profile of select BORLA Cat-Back exhaust systems.

This resonator is a precision-tuned component designed to work exclusively with BORLA systems; it is not compatible with Original Equipment (O.E.) or aftermarket competitor exhaust systems. Installation requires cutting the factory front pipe to remove the small O.E. front muffler and replacing it with the 60667 unit. Constructed from premium T-304 austenitic stainless steel, this muffler offers superior corrosion resistance and durability compared to 400-series stainless steel alternatives. Every unit features CNC manufacturing and ultra-smooth mandrel bends to maintain maximum exhaust flow and power.

• Manufacturer Part Number: 60667
• Material: T-304 Stainless Steel
• Inlet/Outlet: 3-inch I.D.
• Overall Length: 18.875 inches
• Compatibility: 2019-2024 Ram 1500 5.7L (excludes 2025 models)
• Installation: Requires cutting O.E. front pipe
• Warranty: Million-Mile Warranty

Fits 2015-2023 Ford Mustang GT and GT Premium (5.0L).

The Borla 60561 Touring Resonator is designed to replace the Merge X-Pipe in specific BORLA Cat-Back systems (PN 140590 or 140591) to dampen the exhaust note for a more refined sound. This resonator features an internal H-Pipe configuration to optimize performance and improve tonal quality. It is specifically engineered to work with Borla components and is NOT compatible with original equipment (O.E.) or competitor exhaust systems.

Constructed from premium T-304 stainless steel, this unit provides superior durability and corrosion resistance compared to 400-series stainless steel. Precision CNC manufacturing ensures an accurate fit within your existing Borla system. As with all Borla premium exhaust components, it is backed by their Million-Mile Warranty.

• Inlet Diameter: Dual 2.25 in.
• Outlet Diameter: Dual 2.5 in.
• Internal Design: Integrated H-Pipe
• Material: T-304 Stainless Steel
• Manufacturing: Precision CNC Bent
• Compatibility: For use with Borla PN 140590 and 140591 only
• Part Number: 60561

The Borla XR-1 Racing Sportsman oval muffler (MPN: 40947) is engineered for high-performance racing applications where flow efficiency and space constraints are critical. Utilizing patented, race-winning XR-1 Raceline technology, this muffler features a straight-through design that maximizes exhaust velocity while providing necessary sound attenuation for the driver compartment.

Constructed from high-quality austenitic stainless steel, this muffler is built to withstand the extreme heat and vibration of competitive racing. Its compact 12-inch body and 4-inch center-to-center configuration make it an ideal choice for custom exhaust systems and chassis with limited clearance. The un-notched necks are specifically designed for a secure, professional weld-in installation.

• Inlet/Outlet Diameter: 4.00 inches (Center/Center)
• Body Dimensions: 4.25 inches x 7.88 inches Oval
• Body Length: 12 inches
• Overall Length: 17 inches
• Material: Austenitic Stainless Steel
• Design: Universal, reversible flow-through
• Mounting: Weld-in (Un-notched necks)
• Manufacturer Part Number: 40947

The Borla XR-1 Racing Sportsman (MPN 40946) is a high-flow, universal oval muffler engineered for competitive racing applications. Featuring Borla's patented, race-winning XR-1 Raceline technology, this muffler utilizes a straight-through design to maximize exhaust velocity and power while reducing interior cabin noise. Built from premium austenitic stainless steel, it provides exceptional durability under extreme heat and racing conditions.

Its compact oval footprint makes it an ideal solution for vehicles with limited underbody clearance, including door cars and roadsters. The un-notched necks are designed specifically for a secure weld-in installation, and the reversible design allows for flexible mounting configurations.

• Inlet Diameter: 3.5" (Center)
• Outlet Diameter: 3.5" (Center)
• Case Dimensions: 4.25" x 7.88" Oval x 16" Case Length
• Overall Length: 21"
• Material: High-quality austenitic stainless steel
• Design: Reversible, straight-through XR-1 technology
• Installation: Un-notched necks for weld-in fitment
• Manufacturer Part Number: 40946

The Borla XR-1 Racing Sportsman (MPN 40945) is a high-flow universal oval muffler engineered for competitive racing applications where space is at a premium. Built from premium austenitic stainless steel, this muffler utilizes Borla's patented straight-through technology to provide maximum exhaust velocity and weight savings compared to traditional performance mufflers.

Designed for custom exhaust fabrication, the XR-1 Sportsman features a reversible design and un-notched necks for a secure weld-in installation. Its compact 12-inch body allows for versatile placement in tight chassis configurations without sacrificing the durability required for high-temperature track use.

• Inlet/Outlet Diameter: 3.5in (Center/Center)
• Case Dimensions: 4.25in x 7.88in Oval
• Body Length: 12in
• Overall Length: 17in
• Material: High-quality austenitic stainless steel
• Configuration: Universal, reversible design
• Design: Patented XR-1 Raceline flow-through technology
• Installation: Un-notched necks for weld-in application
• Manufacturer Part Number: 40945

The Borla XR-1 Racing Sportsman series muffler (MPN 40944) is engineered for high-performance racing applications where maximizing flow and durability is critical. Featuring Borla's patented straight-through design, this muffler reduces exhaust noise to improve driver comfort without restricting power output. Constructed from premium austenitic stainless steel, it is built to withstand the extreme heat and rigors of the track.

• Inlet / Outlet: 3-inch Center Inlet / 3-inch Center Outlet
• Case Dimensions: 4.25" x 7.88" Oval body; 16" body length
• Overall Length: 21" total length
• Material: High-quality austenitic stainless steel construction
• Configuration: Reversible, universal racing muffler with un-notched necks for weld-in installation
• Design: Lightweight and compact for applications with limited chassis clearance

This universal muffler is designed for professional racing environments. For installations requiring clamps instead of welding, the use of 3-inch wide band clamps (Borla part number 18006) is recommended. Manufacturer Part Number: 40944.

The Borla XR-1 Racing Sportsman muffler (MPN 40943) is a high-performance, universal-fit solution engineered for racing applications where maximum flow and weight reduction are critical. Constructed from premium austenitic stainless steel, this muffler utilizes Borla's patented XR-1 Raceline flow-through technology to provide significant power gains without the restrictive backpressure of traditional performance mufflers.

• Configuration: 3" Center Inlet / 3" Center Outlet
• Dimensions: 4.25" x 7.88" Oval Casing, 12" Body Length, 17" Overall Length
• Construction: High-quality austenitic stainless steel for superior durability and corrosion resistance
• Installation: Un-notched necks designed for weld-in installation; requires 3" wide band clamps (such as Borla 18006) if clamping is preferred
• Design: Fully reversible, lightweight, and compact for applications with limited chassis or transmission clearance

As Borla's top-selling racing muffler series, the XR-1 Sportsman is trusted by professionals to lower driver compartment noise levels without compromising horsepower. This universal part provides a high-flow, durable exhaust solution for door cars, roadsters, and custom race builds.