Arin@APR
GOLFMK7 Official Sponsor
Product Page: APR SUS00016 APR Roll-Control Lowering Springs - MK8 GTI
APR Roll-Control Lowering Springs greatly improve the looks and handling of your Volkswagen MK8 GTI without greatly sacrificing comfort or your wallet! Designed for use with DCC or Non-DCC dampers, our performance lowering springs are a direct plug-and-play upgrade that offer a lower center of gravity and increased spring rates to reduce body roll.
Many lowering springs on the market today simply lower your vehicle and give a false sense of improvement by feeling overly stiff. We took a different approach with our design. We extensively track and street tested several iterations to deliver a system that not only makes your MK8 GTI look great, but does so while delivering a comfortable experience that doesn’t constantly crash and bottom out the dampers. Through a proper ride height configuration, we’re able to greatly increase spring rates for improved handling, but do so without leaving the ride harsh, bouncy, and uncomfortable. Your MK8 GTI will be planted with a minimal impact on comfort. It’s a system you’ll love the second you’re behind the wheel!
These springs were designed in house and manufactured in the USA using a premium high tensile chrome silicon steel for excellent resilience against sagging and failure for years to come. Each spring comes powder coated in our signature red color, further protecting the spring from the elements. The front and rear springs are a dual rate spring that will operate as a single rate, linear spring, under normal loaded driving situations. All center of wheel to fender (CF) measurements were recorded on our in-house US Spec 2022 MK8 GTI (DCC) test vehicles and may vary slightly from vehicle to vehicle. Lastly, while this system was designed specifically for the MK8 GTI, it will fit other similar platform vehicles.
Specifications:
US 2022 MK8 GTI (DCC) Front:
362 mm (OEM) vs 340 mm (APR) or a 22 mm reduction in CF Height
202 lbs/in (OEM) vs 274 lbs/in (APR) or a 36% increase in Spring Rate
US 2022 MK8 GTI (DCC) Rear:
368 mm (OEM) vs 340 mm (APR) or a 29 mm reduction in CF Height
280 lbs/in (OEM) vs 420 lbs/in (APR) or a 50% increase in Spring Rate
Product Page: APR SUS00025 APR Lowering Bumpstops - MK7/MK8 GTI/GLI/R
APR Lowering Bumpstops are here! They improve handling and ride quality and are designed for use on lowered vehicles such as those with APR Roll-Control Lowering Springs. Bumpstops are a critical handling and ride-quality component of your suspension system, but they are often completely overlooked. Most setups are either running the factory bumpstop, which are too tall causing constant engagement during normal driving, cut bumpstops, which remove the progressive dampening, or they’ve removed them all together! All of these scenarios hurt handling and make the ride harsh.
APR Bumpstops were designed using a balance of durometer (hardness) and length to tune comfort and handling under normal and aggressive driving scenarios. The balance takes the following into account:
Length:
A longer bumpstop, like the factory units, will have more volume to absorb a harsh impact. But during normal driving on a lowered vehicle, they will constantly contact, which impacts both handling and comfort. The quick engagement can disrupt handling and cause driver discomfort. We’ve shortened the bumpstop to ensure that they work on a lowered vehicle, but keep them tall enough so they have enough volume to absorb a hard hit.
Durometer (hardness):
An overly soft bumpstop is comfortable, but can’t absorb enough energy to protect from damage. Likewise, an overly stiff bumpstop will impact ride quality, and impact handling negatively. Testing various setups we strike a balance by increasing stiffness to provide better handling without going overly stiff as to impact comfort. The bumpstops also have a progressive rate to them with a soft “nose.” This allows the bumpstop to gently engage as to not disrupt handling. It’s also less noticeable to the driver, aiding in the comfort of the driving experience.
Specifications:
Bumpstop - Material - Durometer - I.D. - O.D. - Length
Front - PUR 75A - (~50A OEM) - 19mm - 56mm - 40mm (56mm OEM)
Rear - PUR 65A - (~55A OEM)- 17mm - 59mm - 80mm (110mm OEM)
Note: The OEM MK7 GTI, Jetta GLI, & Golf R, MK8 GTI, MK8 Golf R, and others all share the same
bumpstop length and durometers. Some have an extra ring to make them feel more stiff.