The APR Catback Exhaust System personalizes your vehicle’s looks, sound and performance. Beautifully hand-crafted T304-stainless-steel components adorn the system with stunning TIG-welding throughout. Our straight-through brushed-finished mufflers smooth the exhaust note to a deep growl, without adding restrictions, while our Helmholtz resonator reduces unwanted frequencies. Strong high-quality bracketry and OEM-style clamps hold the system steadily in place, making the install or removal a snap, and fitment simple, yet precise. A cast 3” to quad 2.5” rear splitter creates an ultra-smooth transition, steadily feeding exhaust gasses out of the system, while looking tidy from under the rear bumper. Our cast valve housings enable the vehicle to be fitted with the factory electronic valve actuators, retaining OEM valve operation.  Finally, removable 4″ polished slash-cut exhaust tips finish the system, adding a classy motorsport-inspired touch to the rear of the vehicle.

Quick Facts

• • T304 stainless-steel construction
  • Argon-back-purged TIG welding throughout
  • Single 3″ to quad 2.5″ mandrel-bent brushed tubing
  • Ultra-smooth cast 3″ to quad 2.5″ splitter
  • Brushed-finished straight-through sound-absorption mufflers and Helmholtz frequency reducing resonator
  • Polished 4″ slash-cut exhaust tips (removable)
  • Cast valve housings and brackets for OEM electronic actuators
  • Rugged and precise mounting brackets
  • OEM style slip clamps and Torca AccuSeal T304 tip clamps
  • Direct fit to the OEM and APR downpipe exhaust systems with the included link and reducer pipes
  • Low-profile design, suitable for lowered vehicles
  • Larger diameter piping compared to stock
  • Larger diameter tips compared to stock
  • No increase in weight compared to stock
  • Designed, developed, assembled and quality controlled in-house
  • Easy to install
  • Limited lifetime warranty

System Overview

Our exhaust system uses larger piping compared to the factory exhaust system, yet weighs the same. We use 3″ OD piping, which then splits to a quad 2.5″ design. The factory system uses 2.57″ piping before the resonator and 2.78” thereafter. Finally, our system’s 4″ exhaust tips dwarf the factory oval tips, giving the rear of the vehicle a sportier look.

Mufflers and Resonators

The rear mufflers are responsible for reducing the exhaust note and do so without adding unnecessary restrictions to the system. Each unit features two straight-through perforated tubes that are tightly wrapped with stainless steel and fiberglass material. With the valves closed, the system is tamer, but once opened, the system sounds deep, throaty and aggressive! The mufflers have a beautiful brushed finish, and are tucked high in the exhaust tunnel, making them perfect for lowered vehicles and a treat to see when looking at the vehicle from the rear.

The front resonator is responsible for eliminating unwanted sound frequencies from the cabin. This is done without introducing added restrictions to the system. Using Helmholtz technology, sound waves bounce through the chamber and back into the exhaust stream, eliminating the undesirable frequencies to make the exhaust note more pleasing. During cruise, with the valves closed, the system remains calm.

Cast Splitter

We cast the axle-back splitter to maximize the system’s performance by keeping exhaust velocity high and back pressure low. This is accomplished by gradually splitting the system from a single 3” pipe to quad 2.5” pipes. The organically shaped casting allows us to make this transition gradually as to not disturb the flow of gasses. Furthermore, as this component is visible from the rear of the vehicle, we made sure form matched function with a beautiful surface finish, TIG welding, unique bracketry and brushed, mandrel bent tubing.

Exhaust Valves

Our system features two valves that allow control of the volume of the system via the factory exhaust valve actuators. In doing so, the system can go from tame to aggressive instantly! Unlike pneumatic systems, and other common valves found in the market today, our system maintains identical OEM operation all the way down to the factory valve actuation angles. Furthermore, the system is fully compatible with exhaust remotes, allowing end users to manually open the system at the click of a button.

We cast the valve housings out of T304 stainless-steel. Internally the system uses CNC-machined T303 components and brass bushings, which have stood up to our extreme torture testing. All necessary hardware is welded into place and is designed to combat heat and vibration for years to come.

Brackets

Our brackets ensure a strong and precise fit, every time. With our design, you’ll never need to worry about the brackets sagging and losing their shape over time, or the post slipping out of the hangers. The brackets are rigid, exact in their position, fit snugly in place and are made to stand the test of time.

Tubing

We use T304 stainless steel tubing throughout. We brush and de-burr all pipes, use mandrel bending techniques to ensure the pipes keep a constant diameter throughout, and use argon-back purged TIG welding for a strong and attractive weld.

Tips

Our polished slash-cut 4” exhaust tips upgrade the rear of the vehicle dramatically. The motorsport-inspired tips tuck nicely into the factory valance, gently following the valance’s curves and demanding all the right attention in all the right places. We laser etch a small and discreet APR logo onto the top of each tip, and we use T304 stainless Torca AccuSeal clamps that bolt on with ease with hardware that rotates out of sight. Lastly, since the tips are removable, you can upgrade to any one of our optional tip designs at any time.

Clamps

Our system uses OEM-style low-profile slip clamps and T304 stainless-steel Torca AccuSeal clamps for the exhaust tips. Our clamp selection allows the system to sit high in the exhaust tunnel, as is favored by lowered vehicles, with ultimate compatibility no matter what downpipe you may have. The clamps make for easy swapping of the exhaust tips, and slide out of the way to make adding or removing a downpipe easy. Each connection point is strategically placed to ensure the system has minimal opportunity to rotate during install or during years of heavy driving. Finally, because there are no flanges or swedges on the pipe, fitting the system to the factory downpipe, APR downpipe, or other downpipes is a breeze. There’s no cutting, welding, or glaring compatibility issues, and there are no gaskets to replace.

Downpipe Compatibility

We’ve designed our system to be 100% bolt-on with the factory exhaust downpipe and APR downpipe. There’s no cutting, welding, or finagling to get the system to fit. It simply bolts on thanks to the included reducer for use with the factory downpipe, and link pipe for use with the APR downpipe.

Our exhaust systems are proudly designed, developed, assembled and quality controlled in-house at the APR 78,000 sq.ft performance campus in Opelika, Alabama.

Optional Polished Double-Walled Tips

Our polished slash-cut double-walled 4” exhaust tips upgrade the rear of the vehicle dramatically. The motorsport-inspired tips tuck nicely into the factory valance, gently following the valance’s curves and demanding all the right attention in all the right places. Each tip features an engraved APR logo. Each kit is sold as a set of two tips. Four tips are required.

Optional Brushed Double-Walled Tips

Our brushed slash-cut double-walled 4” exhaust tips upgrade the rear of the vehicle dramatically. The motorsport-inspired tips tuck nicely into the factory valance, gently following the valance’s curves, demanding all the right attention in all the right places. Each tip features an engraved APR logo. Each kit is sold as a set of two tips. Four tips are required.

  

The APR Catback Exhaust System personalizes your vehicle’s looks, sound and performance. Beautifully hand-crafted T304-stainless-steel components adorn the system with stunning TIG-welding throughout. Our straight-through brushed-finished mufflers smooth the exhaust note to a deep growl, without adding restrictions, while our Helmholtz resonator reduces unwanted frequencies. Strong high-quality bracketry and OEM-style clamps hold the system steadily in place, making the install or removal a snap, and fitment simple, yet precise. A cast 3” to quad 2.5” rear splitter creates an ultra-smooth transition, steadily feeding exhaust gasses out of the system, while looking tidy from under the rear bumper. Our cast valve housings enable the vehicle to be fitted with the factory electronic valve actuators, retaining OEM valve operation.  Finally, removable 4″ polished slash-cut exhaust tips finish the system, adding a classy motorsport-inspired touch to the rear of the vehicle.

Quick Facts

• • T304 stainless-steel construction
  • Argon-back-purged TIG welding throughout
  • Single 3″ to quad 2.5″ mandrel-bent brushed tubing
  • Ultra-smooth cast 3″ to quad 2.5″ splitter
  • Brushed-finished straight-through sound-absorption mufflers and Helmholtz frequency reducing resonator
  • Polished 4″ slash-cut exhaust tips (removable)
  • Cast valve housings and brackets for OEM electronic actuators
  • Rugged and precise mounting brackets
  • OEM style slip clamps and Torca AccuSeal T304 tip clamps
  • Direct fit to the OEM and APR downpipe exhaust systems with the included link and reducer pipes
  • Low-profile design, suitable for lowered vehicles
  • Larger diameter piping compared to stock
  • Larger diameter tips compared to stock
  • No increase in weight compared to stock
  • Designed, developed, assembled and quality controlled in-house
  • Easy to install
  • Limited lifetime warranty

System Overview

Our exhaust system uses larger piping compared to the factory exhaust system, yet weighs the same. We use 3″ OD piping, which then splits to a quad 2.5″ design. The factory system uses 2.57″ piping before the resonator and 2.78” thereafter. Finally, our system’s 4″ exhaust tips dwarf the factory oval tips, giving the rear of the vehicle a sportier look.

Mufflers and Resonators

The rear mufflers are responsible for reducing the exhaust note and do so without adding unnecessary restrictions to the system. Each unit features two straight-through perforated tubes that are tightly wrapped with stainless steel and fiberglass material. With the valves closed, the system is tamer, but once opened, the system sounds deep, throaty and aggressive! The mufflers have a beautiful brushed finish, and are tucked high in the exhaust tunnel, making them perfect for lowered vehicles and a treat to see when looking at the vehicle from the rear.

The front resonator is responsible for eliminating unwanted sound frequencies from the cabin. This is done without introducing added restrictions to the system. Using Helmholtz technology, sound waves bounce through the chamber and back into the exhaust stream, eliminating the undesirable frequencies to make the exhaust note more pleasing. During cruise, with the valves closed, the system remains calm.

Cast Splitter

We cast the axle-back splitter to maximize the system’s performance by keeping exhaust velocity high and back pressure low. This is accomplished by gradually splitting the system from a single 3” pipe to quad 2.5” pipes. The organically shaped casting allows us to make this transition gradually as to not disturb the flow of gasses. Furthermore, as this component is visible from the rear of the vehicle, we made sure form matched function with a beautiful surface finish, TIG welding, unique bracketry and brushed, mandrel bent tubing.

Exhaust Valves

Our system features two valves that allow control of the volume of the system via the factory exhaust valve actuators. In doing so, the system can go from tame to aggressive instantly! Unlike pneumatic systems, and other common valves found in the market today, our system maintains identical OEM operation all the way down to the factory valve actuation angles. Furthermore, the system is fully compatible with exhaust remotes, allowing end users to manually open the system at the click of a button.

We cast the valve housings out of T304 stainless-steel. Internally the system uses CNC-machined T303 components and brass bushings, which have stood up to our extreme torture testing. All necessary hardware is welded into place and is designed to combat heat and vibration for years to come.

Brackets

Our brackets ensure a strong and precise fit, every time. With our design, you’ll never need to worry about the brackets sagging and losing their shape over time, or the post slipping out of the hangers. The brackets are rigid, exact in their position, fit snugly in place and are made to stand the test of time.

Tubing

We use T304 stainless steel tubing throughout. We brush and de-burr all pipes, use mandrel bending techniques to ensure the pipes keep a constant diameter throughout, and use argon-back purged TIG welding for a strong and attractive weld.

Tips

Our polished slash-cut 4” exhaust tips upgrade the rear of the vehicle dramatically. The motorsport-inspired tips tuck nicely into the factory valance, gently following the valance’s curves and demanding all the right attention in all the right places. We laser etch a small and discreet APR logo onto the top of each tip, and we use T304 stainless Torca AccuSeal clamps that bolt on with ease with hardware that rotates out of sight. Lastly, since the tips are removable, you can upgrade to any one of our optional tip designs at any time.

Clamps

Our system uses OEM-style low-profile slip clamps and T304 stainless-steel Torca AccuSeal clamps for the exhaust tips. Our clamp selection allows the system to sit high in the exhaust tunnel, as is favored by lowered vehicles, with ultimate compatibility no matter what downpipe you may have. The clamps make for easy swapping of the exhaust tips, and slide out of the way to make adding or removing a downpipe easy. Each connection point is strategically placed to ensure the system has minimal opportunity to rotate during install or during years of heavy driving. Finally, because there are no flanges or swedges on the pipe, fitting the system to the factory downpipe, APR downpipe, or other downpipes is a breeze. There’s no cutting, welding, or glaring compatibility issues, and there are no gaskets to replace.

Downpipe Compatibility

We’ve designed our system to be 100% bolt-on with the factory exhaust downpipe and APR downpipe. There’s no cutting, welding, or finagling to get the system to fit. It simply bolts on thanks to the included reducer for use with the factory downpipe, and link pipe for use with the APR downpipe.

Our exhaust systems are proudly designed, developed, assembled and quality controlled in-house at the APR 78,000 sq.ft performance campus in Opelika, Alabama.

Optional Polished Double-Walled Tips

Our polished slash-cut double-walled 4” exhaust tips upgrade the rear of the vehicle dramatically. The motorsport-inspired tips tuck nicely into the factory valance, gently following the valance’s curves and demanding all the right attention in all the right places. Each tip features an engraved APR logo. Each kit is sold as a set of two tips. Four tips are required.

Optional Brushed Double-Walled Tips

Our brushed slash-cut double-walled 4” exhaust tips upgrade the rear of the vehicle dramatically. The motorsport-inspired tips tuck nicely into the factory valance, gently following the valance’s curves, demanding all the right attention in all the right places. Each tip features an engraved APR logo. Each kit is sold as a set of two tips. Four tips are required.

  

Cobra Sport performance exhausts enhance the sound, looks and quality of your vehicle giving you the ultimate driving experience. Our sports exhausts range is fully guaranteed to give you assurance of our quality.

These Audi A3 TDI performance exhaust is made in 2.5″/63.5mm pipework and fits from the catalytic converter section backwards (Cat Back) these exhausts replace the centre and rear sections.

All relevant fittings and gaskets are supplied.

COBRA SPORT REVIEW

The new Cobra Sport performance exhausts for the Audi A3 TDI are manufactured in Sheffield using 2.5” (63.5mm) mandrel bent stainless steel pipework. The system has been created in a similar design to our ‘Venom’ exhaust range which removes the rear silencer but keeps the central resonated section to remove the resonation sound produced by the engine to keep cabin unwanted noise to a minimum.

This system, designed for the single exit 3 door A3 2.0 TDI engines produces a slightly deeper than standard tone on idle and when under load the exhaust tone becomes more pronounced with a surge in urgency. At idle the system recorded a level of 66.7dB which then increased to 82.3dB on the static 3,000rpm sound test. Interior sound is kept to a comfortable level averaging 74.1dB on the test circuit maxing out at 77.4dB under full acceleration.

Available in a choice of tailpipe options including statement 4” (101.6mm) highly polished T304 stainless steel finish along with the new Cobra Sport Blackout Ceramic black ceramic coated design.

Cobra Sport performance exhausts enhance the sound, looks and quality of your vehicle giving you the ultimate driving experience. Our sports exhausts range is fully guaranteed to give you assurance of our quality.

This VW Golf R Mk7 performance exhaust is made in 3″/76.2mm pipework and fit from the catalytic converter section backwards (Cat-back), these parts replace the centre and rear sections.

The non-resonated exhaust makes the system louder as it excludes the centre silencer and therefore, has a sportier exhaust note. This exhaust however, is also available as a resonated version (including centre silencer) which is a quieter option.

The resonated exhaust includes the centre silencer and has a subtle but sporty tone. This exhaust however, is also available as a non-resonated version (excluding the centre silencer) which is a louder option.

All relevant fittings and gaskets are supplied.

Please Note –

This performance exhaust removes the use of exhaust valves. When switching drive modes (e.g. Eco to Race mode) your exhaust tone will not change from quieter to louder as before. Using a Non-Valved exhaust will not harm the running of your vehicle, you will simply not have exhaust sound options, however the Cobra Sport exhaust has been designed with this in mind.

Fitted images show the resonated version.

COBRA SPORT REVIEW

Cobra Sport have gained a fantastic reputation in the Japanese, Ford and Vauxhall exhaust markets over the years and hope to capitalise on this success by launching a more comprehensive selection of VAG products over the coming months to complement and expand their market reach. Therefore, they have now added the VW Golf R MK7 to the range.

Matt Thomas, Sales Manager at Cobra Sport says “The Golf R MK7 exhaust system has completed the R&D program, and we have now collated the performance results. Having tested the resonated cat back exhaust system on the rolling road we saw an impressive 7.4bhp increase. We are now at the stage of waiting to collate all the facts and figures for the other systems which we will release shortly. If the VW Golf R Mk6 figures were anything to go by which saw over a 20% increase in BHP and a whopping 50% decrease in weight saving from the Original Equipment version (based on the de-cat turbo back system & mandatory re-map) we have high expectations from the Golf R Mk7. Having driven both the resonated & non-resonated on a daily basis, I found the non-resonated to be slightly uncomfortable at motorway speeds, and slightly on the louder side for normal road use, although, nowadays I would class myself as the more mature driver.

Cobra Sport performance exhausts enhance the sound, looks and quality of your vehicle giving you the ultimate driving experience. Our sports exhausts range is fully guaranteed to give you assurance of our quality.

This VW Golf R Mk7 performance exhaust is made in 3″/76.2mm pipework and fit from the catalytic converter section backwards (Cat-back), these parts replace the centre and rear sections.

This non-resonated exhaust makes the system louder as it excludes the centre silencer and therefore, has a sportier exhaust note. This exhaust however, is also available as a resonated version (including centre silencer) which is a quieter option.

All relevant fittings and gaskets are supplied.

Please Note – This performance exhaust retains the use of exhaust valves. When switching drive modes (e.g. Eco to Race mode) your exhaust tone will continue to swop from quieter to louder tones as before.

Fitted images show the non-valved resonated version.

COBRA SPORT REVIEW

Cobra Sport have gained a fantastic reputation in the Japanese, Ford and Vauxhall exhaust markets over the years and hope to capitalise on this success by launching a more comprehensive selection of VAG products over the coming months to complement and expand their market reach. Therefore, they have now added the VW Golf R MK7 to the range.

Matt Thomas, Sales Manager at Cobra Sport says “The Golf R MK7 exhaust system has completed the R&D program, and we have now collated the performance results. Having tested the resonated cat back exhaust system on the rolling road we saw an impressive +7.4bhp increase. This cat back system utilises the factory valve actuators/motors to give you a much quieter sound when running in eco mode, in this mode the system is barely louder than the standard system”. Having driven both the resonated & non-resonated cat back system on a daily basis, I found the non-resonated to be slightly uncomfortable at motorway speeds, and slightly on the louder side for normal road use, although, nowadays I would class myself as the more mature driver. The Cobra Sport system really improves the drivability of this car and takes it to the next level”.

Independent rolling road testing of the Golf MK7 resonated turbo back system with sports cat front pipe and aftermarket air intake revealed a +40.76bhp (30.4KW) power increase measured at all 4 wheels with the Golf R putting an impressive 270.61bhp (201.8KW) through the rollers. This testing was undertaken by a dealer in Australia in temperatures of 29.3 degrees celsius and an air density of 93.6%.

A substantial weight saving can also be achieved with the 3” turbo back system providing a whopping 35% decrease in weight from the Original Equipment version. The styling of the system is finished off with either quad 5” x 3” oval slash-cut tailpipes in stainless steel finish or the upgraded ceramic coated versions.