Unlocking performance from the MK6 Jetta GLI:
Our exhausts have earned praise from owners and the press alike, due to their unique "Jekyll and Hyde" personality. We spend considerable time and effort during development to achieve remarkable civility when idling and cruising at part throttle, while also producing a war-cry wail when full throttle is applied. Sophisticated, refined, and powerful, all at once.
Turning good into great
The factory exhaust on the GLI consists of a long downpipe, with two catalytic converters, and two rather large mufflers in the section after the cats. We fixed that.
The Mk6 Jetta GLI Touring Edition Exhaust replaces the factory exhaust from the downpipe back, featuring a straight through resonator and AWE Tuning's 180 Technology™ in the rear muffler section.
Sound Perfection: AWE Tuning 180 Technology™
As exhaust gases exit the 2.0L Turbo engine and flow into an AWE Tuning 180 Technology™ equipped resonator, they pass through strategically located ports, and into reflection chambers. Sound waves, carried by these exhaust gasses, bounce off the walls of the reflection chambers. By controlling the size and location of the ports and the chambers, we also control when the sound waves exit the chambers. The specific timing of when the reflected sound waves re-join the main exhaust flow creates a one-hundred-and-eighty-degree out-of-phase sound wave that cancels out problematic frequencies. More on AWE Tuning 180 Technology™ in the tab above.
It’s too loud! It’s too quiet!
Don’t worry. If you’re looking to crank up a notch or bring it down, perfectly engineered upgrade paths are available. Turn your Touring Edition to a Track Edition, or vice versa, with ease. Simply unclamp the rear Touring or Track Edition section and replace with the new configuration.
Important fitment notes
Have a 2013 GLI? Be sure to check your engine code to ensure correct fitment on your vehicle. Certain engine types feature different downpipe fitments, so let’s be sure this will fit yours.
Why did we choose 2.5 inch and not 3.0 inch diameter for our MK6 exhaust?
Our first 2.0T exhaust prototypes were indeed 3.0 inch, but we found that the effort it took to move the large mass of air in the 3.0 inch system at lower rpms resulted in a loss of torque with very little offsetting gain up top. Take a look at our 3.0 inch prototype dyno sheets below and see why a 3.0 inch system is not appropriate for this car.
Please note that due to the use of high flow catalytic converters, our downpipe section is for racing use only.
AWE Tuning 180 Technology® works a little something like this: As exhaust gases exit the engine and flow into an AWE Tuning 180 Technology® equipped resonator, they pass through strategically located ports, and into reflection chambers.
Sound waves, carried by these exhaust gasses, bounce off the walls of the reflection chambers. Depending on the sound requirements of each vehicle, AWE Tuning acoustic engineers adjust the size and location of the ports and the chambers. By controlling the size and location of these key elements, we also control when the sound waves exit the chambers. The specific timing of when the reflected sound waves re-join the main exhaust flow creates a one-hundred-and-eighty-degree out-of-phase sound wave that cancels out problematic frequencies.
AWE Tuning 180 Technology® is not on a “one size fits all” concept. Rather, AWE Tuning engineers design sound cancellation resonators based upon the specific acoustics generated by vehicle types, thereby ensuring perfect sound, every time. It’s one of the reasons AWE Tuning ® exhausts have earned a reputation for the perfect tone, regardless of application.
The result? The removal of unwanted tones in all AWE Tuning 180 Technology®-equipped exhaust systems. The sound produced by this formula is the perfect, signature note. Unlocked performance and spot-on tone, every time.
180 Technology® in action, below.
|VOLKSWAGEN||JETTA||GLI||2.0L TURBO||FITS ANY DRIVETRAIN||FITS ANY TRANSMISSION||2011|
|VOLKSWAGEN||JETTA||GLI||2.0L TURBO||FWD||FITS ANY TRANSMISSION||2011|
All AWE brand products have a fitment guarantee. This is our pledge to have made products that perfectly fit, for easy installation by a qualified installer.
30 days from purchase date, with proof of purchase.
Consultation toward resolving installation issues. Should AWE deem that installation issue is due solely to a manufacturing defect, AWE will issue a replacement product or portion of product, free of charge.
Labor is not covered.
If claim is determined by AWE at its sole discretion to be a manufacturer defect, AWE will cover two-way shipping to AWE either from consumer or dealer, and back to either consumer or dealer. AWE may also request a “Destroy in Field” of any defective parts.
No restock fee for Manufacturer Defect.
AWE Tuning 2.0T Exhaust Dyno Tests
Below are comparision dyno tests as performed on our Mustang MD-500-SE AWD dyno.
All tests were performed on the same car, with controlled ambient conditions. Each test is average of 3 runs performed.
AWE Tuning MK6 GLI 2.0T Exhaust Performance Specs at the Crank
AWE Tuning MK6 GLI 2.0T Exhaust Performance Specs at the Wheels
Cat Back Exhaust Testing
Our first prototype for the A3/GTI/GLI was a 3" diameter cat back system. Careful before and after dyno testing showed that for this car, bigger was definitely not better. The air mass found inside the 3" tubing proved to be a restriction to the engine until the higher rpm region, and even at that point gains were minimal. Our reputation is to bring only proven products to market, and a 3" system is definitely not the wise choice for power on this car. Design was rejected.
After further dyno testing, we found that a 2.50" diameter gave the best overall balance of torque and horsepower gains. Peak gain were 3.1whp and 0.1wtq.
In the graphed gains sheet below you'll find the measured differences between baseline and test in dyno sheet of AWE Tuning 2.50" Cat Back Dyno Test vs stock exhaust. The AWE Tuning 2.50" exhaust produces a maximum increase of 4 wheel hp at 5300 rpms and 28 wheel torque at 2400 rpms vs. the stock exhaust. Overall, gains are seen over practically the entire powerband.
3 inch Cat Back Dyno Sheet
2.5 inch Cat Back Dyno Sheet
2.5 inch Graphed Gains
Turbo Back Exhaust Testing
In the interest of accurate data, we conducted careful tests with our downpipe design. As we saw with our cat back testing, a 3" inch design is absolutely too large for this vehicle. We even tested with an aggressive G.I.A.C. X-Chip installed in the vehicle, to simulate the kind of power levels that most people will choose for their vehicle. Even with the extra power of the performance chip, 3" diameter tubing was too much air mass for the engine to move, resulting in a clear disadvantage compared to the 2.50" turbo back design.
Intake temps were closely monitored for the test. It is extremely difficult to obtain exactly the same test conditions run after run, and we found that the 3" tests were done with a slightly cooler intake air temp. Even with this advantage, the 3" design could not make as much power at the 2.50". Identical cell count cats were used for both tests, and the same chip file was in the vehicle for both tests. The tests were done on the same day and on the same car, just as they were with the cat back tests above.
2.50" diameter gives the best overall balance of torque and horsepower gains. Peak gains for the 2.50" system were ~20 crank hp and 14 ftlbs crank torque over the stock turbo back exhaust, while the 3" system could only muster ~9 crank hp and 1.5 ftlbs crank torque over the stock turbo back exhaust. There was no debate on what diameter worked better at this power level.
2.5 vs 3 inch Turbo Back Dyno Sheet
2.5 vs 3 inch Turbo Back Graphed Differences
2.5 vs stock Turbo Back Dyno Sheet
2.5 vs stock Turbo Back Graphed Differences