ProXS Universal Muffler Part # 40348

Configuration: Center/Dual
Oval: 4" X 9.5"
Inlet: 2.5" Outlet: 2.5"
Connection: Un-notched

All of BORLA Pro-XS mufflers (formerly called BORLA Turbo mufflers) utilize a straight-through design; we do not use chambers or baffles that slow down the flow of exhaust.  As such, every one of our universal mufflers are reversible.

A center-in/offset-out muffler can also be installed as offset-in/center-out.  The same holds true for our center-in/dual-out mufflers.

2010-2016 Audi A5 Cat-Back Exhaust System S-Type Part # 140733

Sound: S-Type

Tips: Dual Oval Rolled Angle-Cut

Fits these Vehicles:
2010-2016 Audi B8/ B8.5 A5 2.0L Automatic/ Manual Transmission All Wheel Drive 2 Door

Borla Cat-Back And Axle-Back multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla Sound of Power respected by motoring enthusiasts everywhere. Each system is 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. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer-controlled CNC manufacturing ensures an accurate fit.

2009-2016 Audi A4 Cat-Back Exhaust System S-Type Part # 140315

Sound: S-Type

Tips: Dual Oval Rolled Angle-Cut

Fits these Vehicles:
2009-2016 Audi B8/ B8.5 A4 2.0L 4 Cyl. Turbo Automatic/ Manual Front Wheel and All Wheel Drive 4 Door.

System features a high-quality flex joint for improved fit and function, and mirror polished T-304 stainless steel tips. BORLA® Cat-Back™ & 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® Sound of Power respected by motoring enthusiasts everywhere.

Borla Cat-Back Exhaust System S-Type For Audi S4 2000-2002

The BORLA® sound of power. Its been described as a sonic shot of adrenaline. An intoxicating concert of steel, gears and combustion that echoes from the speedways, deserts and highways of the world. The sound of more victory laps than any other brand, the BORLA® exhaust note has become the quintessential soundtrack of high-performance motoring. And like all good automotive designs there is function behind the form. As any driving enthusiast knows, the sound of an exhaust provides more than just ear candy. Its a communications conduit between car and driver. A link between human and machine. The exhaust sound provides acoustic feedback of engine rpm to aid the driver in critical decisions such as gear selection or throttle input in rev-match shifting. At BORLA®, we understand this concept better than any exhaust manufacturer. Combining patented technology with computer modeling, extensive prototyping and advanced sound analysis tools. BORLA® engineers spend countless hours tuning exhaust systems to best reflect the personality and performance of vehicle applications. The result is an enhanced driving experience. With unrivaled clarity, the BORLA® exhaust note can help a driver stay within the powerband through a difficult section, using the exciting sensory feedback of sound. With unrivaled clarity the Borla exhaust note can help a driver stay within the powerband through a difficult section, using the exciting sensory feedback of sound.  

Borla Cat-Back Exhaust System S-Type For Audi A3 Quattro 2014-2019

BORLA Type-S / Type-S II Cat-Back & Rear Section exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and a distinctive more aggressive sounding “S-Type” sound - respected by motoring enthusiasts everywhere. From the design characteristics of the inner cores to the amount of sound-absorbing composite filament, all specifications of BORLA® exhaust systems are tuned on a vehicle-by-vehicle basis for an optimum blend of performance and sound. Each system is built from premium 300-series 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-controlled CNC manufacturing ensures an accurate fit. Best of all, BORLA 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. 

Borla Cat-Back Exhaust System S-Type For Volkswagen GTI 2006-2009

The BORLA® sound of power. Its been described as a sonic shot of adrenaline. An intoxicating concert of steel, gears and combustion that echoes from the speedways, deserts and highways of the world. The sound of more victory laps than any other brand, the BORLA® exhaust note has become the quintessential soundtrack of high-performance motoring. And like all good automotive designs there is function behind the form. As any driving enthusiast knows, the sound of an exhaust provides more than just ear candy. Its a communications conduit between car and driver. A link between human and machine. The exhaust sound provides acoustic feedback of engine rpm to aid the driver in critical decisions such as gear selection or throttle input in rev-match shifting. At BORLA®, we understand this concept better than any exhaust manufacturer. Combining patented technology with computer modeling, extensive prototyping and advanced sound analysis tools. BORLA® engineers spend countless hours tuning exhaust systems to best reflect the personality and performance of vehicle applications. The result is an enhanced driving experience. With unrivaled clarity, the BORLA® exhaust note can help a driver stay within the powerband through a difficult section, using the exciting sensory feedback of sound. With unrivaled clarity the Borla exhaust note can help a driver stay within the powerband through a difficult section, using the exciting sensory feedback of sound.  

Borla Touring Cat-Back Exhaust System for Jeep Grand Cherokee 2005-2010

The BORLA® sound of power. Its been described as a sonic shot of adrenaline. An intoxicating concert of steel, gears and combustion that echoes from the speedways, deserts and highways of the world. With the sound of more victory laps than any other brand, the BORLA® exhaust note has become the quintessential soundtrack of high-performance motoring. And like all good automotive designs, there is function behind the form. As any driving enthusiast knows, the sound of an exhaust provides more than just ear candy. It's a communications conduit between car and driver. A link between human and machine. The exhaust sound provides accoustic feedback of engine rpm to aid the driver in critical decisions such as gear selection or throttle input in rev-match shifting. At BORLA®, we understand this concept better than any exhaust manufacturer. Combining patented technology with computer modelling, extensive prototyping and advanced sound analysis tools. BORLA® engineers spend countless hours tuning exhaust systems to best reflect the personality and performance of vehicle applications. The result is an enhanced driving experience. With unrivalled clarity, the BORLA® exhaust note can help a driver stay within the powerband through a difficult section, using the exciting sensory feedback of sound. With unrivalled clarity the Borla exhaust note can help a driver stay within the powerband through a difficult section, using the exciting sensory feedback of sound