GFB's DV+ design solves the longevity and boost leaking issues that are common with factory diverter valves, and also changes the operation method to "pilot actuation" (read about this below) to ensure better performance on stock or modified engines.
Furthermore, these benefits won't cost you the Earth! Rather than throwing the entire factory diverter valve system in the trash (like other manufacturer's "solutions"), the DV+ keeps what works, and replaces what doesn't.
WHAT DOES IT FIT?
The T9659 is a duel venting direct factory replacement for the VW MK7 Golf R and Audi 8V S3
WHY NOT JUST USE A SPACER?
There are many "BOV spacers" on the market that make noise. However, they do this simply by using the factory diverter valve and redirecting the air to atmosphere. Therefore, the performance deficiencies of the factory diverter valve design remain, and furthermore, the flow capacity of the factory diverter is significantly reduced because of the small venting holes used in these BOV spacers.
ECU VS VACUUM CONTROL
Other BOV kits eliminate the ECU control entirely, using pure manifold vacuum control instead. Whilst there's nothing particularly wrong with this (that's how the majority of BOVs work), the ECU control is MUCH FASTER, able to detect and respond to much SMALLER THROTTLE TRANSITIONS and, since it's available, why wouldn't you use it?
WHAT'S SPECIAL ABOUT OUR VENTING BIAS SYSTEM?
GFB's patented Venting Bias Adjustment System is the only one of its kind in the world. By using an internal rotating sleeve, the opening of both the recirc port and the atmosphere port can be infinitely adjusted. This means that you're not stuck with a fixed 50/50 or 100% atmosphere venting ratio; you can change it to whatever you want! As an additional benefit, because the atmosphere outlet is a single large port rather than a series of small holes, the venting sound is much DEEPER AND LOUDER than it is with a BOV spacer.
THE BOTTOM LINE IS...
The DVX offers a TRUE PERFORMANCE improvement, INCREASED BOOST-HOLDING ability, and a blow-off sound that is COMPLETELY ADJUSTABLE from factory-silent to ear shattering!
Fitment:
Other Part Numbers:
Go Fast Bits #gfbT9659
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
1988 Audi 80 |
80 | 1988 |
|
2012-2020 Audi A3 |
A3 | 2012-2020 |
|
2013, 2015-2019 Audi A3 Quattro |
A3 Quattro | 2013, 2015-2019 |
|
2015-2020 Audi S3 |
S3 | 2015-2020 |
|
2014 Audi TT MK2 |
TT MK2 | 2014 |
|
2016 Audi TT MK3 |
TT MK3 | 2016 |
|
2013-2014 Volkswagen GTI MK6 |
GTI MK6 | 2013-2014 |
|
2015-2019 Volkswagen GTI MK7 |
GTI MK7 | 2015-2019 |
|
2020 Volkswagen GTI MK8 |
GTI MK8 | 2020 |
|
2014 Volkswagen Golf MK6 |
Golf MK6 | 2014 |
|
2015 Volkswagen Golf MK7 |
Golf MK7 | 2015 |
|
2013, 2015-2019 Volkswagen Golf R |
Golf R | 2013, 2015-2019 |

It all started with the passion of John Adrian to create something that other aftermarket parts cannot produce. Most parts he encountered are either of low quality and are made out of inferior materials.
He decided to take matters into his own hands and started designing, testing, and developing parts that would help improve the performance of his vehicle. Using his own car as a personal testbed, he created products that other enthusiasts later noticed, which has become the start of Go Fast Bits.
Your Source of Performance PartsThe company offers various performance parts such as boost controllers, blow-off valves, short shifters, pulley kits, and more. John Adrian also acts as the chief engineer of the company. Using his 35 years of experience manufacturing high-quality parts for the automotive industry that includes Original Equipment Manufacturers (OEM) parts, he was able to produce parts that meet the demands of his customers.
Quality Made ProductsAll their parts are meticulously made using the highest grade material available to ensure product durability and reliability. Each piece is manufactured to fit perfectly on the vehicle and tested to ensure optimum performance and nothing less.
Purchase Go Fast Bits Parts At Vivid RacingIf you are in the market for high-quality products that would help improve your vehicle's performance, then Go Fast Bits is a brand that you can trust. Their products are proven to deliver performance without compromising the daily drivability of your vehicle. Whether your car is used as a grocery getter or a weekend racer, Go Fast Bits has the right parts for you.
To know more about the company, visit Vivid Racing and check out their parts list that fits your specific requirement.