The Eibach Pro-Kit 1570.140 is a four-spring set of progressive-rate lowering springs for the Audi TT Quattro, built to lower the car while keeping the factory dampers in place. The manufacturer says the kit lowers the center of gravity and improves braking and cornering response, and it positions the springs as a way to add a more aggressive stance without sacrificing everyday ride quality. Eibach states the kit was tested with factory dampers, so it works as a straightforward handling upgrade for a street-driven TT.
Compared with stock springs, this kit gives a lower, more planted stance and firmer body control through corners. Compared with cheaper generic lowering springs, Eibach backs the Pro-Kit with a five-year warranty and a documented, engineered progressive design. Drivers searching for an Audi TT quattro handling spring, a Pro-Kit lowering spring upgrade, or a progressive-rate TT spring set will find this kit positioned for road and spirited use. Confirm your exact model year and engine before ordering, because the manufacturer's application listing names the 2000–2006 TT Quattro 1.8L, while the product title covers a wider 10/98–06 coupe, roadster, and convertible range.
The manufacturer states the Pro-Kit was tested with factory dampers, so the springs can be installed with the original shocks. Owners on user forums commonly recommend inspecting the stock shocks during the job, since worn dampers can reduce the benefit of a lowered setup.
Owners on user forums report that Eibach customer service confirmed the springs should be installed with the Eibach logo and text right side up. Forum members also note the springs may need some force to seat fully in this position.
Yes. The manufacturer's PRO-KIT installation sheets for other applications require a wheel alignment after installation, and the manufacturer recommends checking wheel adjustment after any spring work.
This is a shop-level job. The manufacturer recommends having the spring system installed by a qualified workshop with the required special tools, and its PRO-KIT sheets for other applications say a hoist is highly recommended. Eibach's PRO-KIT sheets also say to retain the original spring isolators and dampers, avoid impact wrenches on shock piston components and piston rod nuts, and mark the orientation of the upper strut perch before disassembly on MacPherson strut fronts. Owners on user forums note the springs are a tight fit and may need force to seat. Plan on a full alignment afterward, and confirm the bump stop details for your specific TT before starting, because owners report that the bump stop change applies to the front axle.
