All sales are final, no returns, refunds or order cancellations will be accepted on this part. FITS THESE MODELS: *We do not recommend using this on cars with front ride height sensors. The hose will rub on the sensor and mount. MK7 & MK7.5 GTI (2015-2022) MK7 Golf R (2015-2019) MK7 & MK7.5 Jetta & GLI (2019-2022) Sportwagen 1.4l/1.8L (2017-2019) Arteon 2.0L (2019-2023) Alltrack 1.8L (2017-2019) Audi A3 8V 1.8L & 2.0L (2015-2018) Audi S3 8V (2015-2017) NOT confirmed yet: RS3 8V TTRS This kit includes rotor plates, hose flanges and hoses only. We do not include an inlet for the ducts. You will need to source and route those parts yourself. Every piece of this kit is available individually to service it or DIY a custom setup. Just like a splitter, you should anticipate some of this parts to be "wear items" due to their proximity to the ground and rubbing from steering. Hoses will develop holes eventually from the frequent abrasion against the other parts of the suspension assembly. Listings for each part individually can be accessed by clicking on the item below. Each kit includes a set of parts for both sides of the car: 2 - 5052 Aluminum brake shield backing plates 2 - billet 6061 brake hose adapter flanges (passenger & driver) 2 - 2.5”/65mm ID high temp silicone hoses with wire reinforcement - 36" per side Hardware pack & 4 - stainless hose clamps and zip tie pack 4 - OEM caliper carrier bolts - N91084901 (required to be replaced when removing the carrier bracket for a second time per VW spec.) We took temp readings on a 2015 GTI with OEM non-PP calipers, EBC rotors & EBC red pads. Temp probes were installed to gather ambient temp data inside the top hat at the hub and on the caliper body. The data points were logged in 10 second intervals. The driver side was setup with a brake duct, the passenger side without. The car was warmed up and the brakes used from 70 mph -> 10mph, five times before data logging started. Both sessions were done on the same section of road, on the same day with the same ambient temp. Speed played a role in effectiveness. At 50mph+ the cooling was more notable both at the caliper and in the top hat. Under 50mph, caliper cooling was greatly reduced, however rotor temps were still significantly lower. The ducted brake recovered from peak temps about 40 seconds quicker than the un-ducted regardless of speed. Ambient temp in the hat was on average 23°F lower with ducting. However, this did correlate to vehicle speed. With our ducting kit, during a 20 minute session with an average speed of 45mph. The ambient temp in the rotor hat was reduced by 20%, and surface temp of the caliper body was 3% lower. With our ducting kit and RS3 brake deflectors, during a 20 minute session with an average speed of 58mph. Ambient temp in the rotor hat was 21% lower, and 8% lower on the caliper body. Our data is provided only for reference. There are many variables that can influence the brake cooling, we cannot guarantee you will have the same results. FAQ: Why didn't you use 3" hose? 1. Access to the back side of the rotor top hat is limited with OEM unmodified spindles. We can only make a 4.29 in² (~2.35 inch diameter area) slot in the brake shield. With this bottleneck, there was no gain by using a 3" hose. 2. We wanted to retain tire clearance at full lock in both directions. Packaging constraints around the spindle did not allow for 3" to fit, even if was oval duct. Can't you just put a 3" pipe on the back of the brake shield and cut a hole? You can, however cooling one side of some rotors can lead to stress cracking during the rapid heat cycle track use creates. In our opinion, that risk of losing a rotor is not worth it. Our duct is designed to dump air into the top hat only, so the vanes can cool the rotor more evenly. This does not apply to floating rotors, however we need to offer a kit that works on all cars. Will these fix brake fade on my OEM calipers? No, however a combination of proper pads, fluid, and cooling ducts will drastically reduce brake fade. Eventually OEM calipers will still fade with heavy track use especially later in the day after multiple sessions. Anything else I can do to make these work better? Pair them with a proper track pad, and fluid (or aggressive street pad for daily driving). Adding a fender vent will also help release pressure & heat in the fender well, allowing these ducts to work more efficiently.
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