Lowering Springs for Audi

Drop numbers for Audi lowering springs vary more by suspension type than by badge. On the B9-chassis A4 and S4, H&R's Sport Springs (part 50357) lower a car built with the factory sport suspension about 0.8 inch front and rear, but the same kit drops a non-sport A4 closer to 1.6 inches front and rear because the base suspension starts higher. Eibach's Pro-Kit for the quattro B9 A4 sedan (part E10-15-023-04-22) is sold as a direct OE-spring replacement; Eibach's own product page does not publish a drop figure for that part, so treat any number quoted elsewhere for it as unverified.

On the Q5 (FY chassis, 2018 and newer), H&R's Super Sport Springs (part 50381-77) are the more aggressive option, dropping the SUV about 2.2 inches front and 2.4 inches rear. See Eibach's full lowering spring range and H&R's lowering spring range for other Audi part numbers, and lowering springs by car if you need a different make entirely.

Quattro and front-wheel-drive Audis commonly take different spring part numbers even on the same body style, because the added weight over the front axle on an AWD car calls for a different rate. That is why Eibach lists its quattro B9 A4 Pro-Kit (E10-15-023-04-22) as its own catalog entry rather than a universal A4 part.

Many current Audis also offer adaptive dampers (Audi calls these Dynamic Chassis Control or magnetic ride suspension on older models). A fixed-rate lowering spring paired with a damper tuned for stock ride height can run out of usable shock travel sooner, which shows up as a harsher ride or clunking over bumps. Before buying, confirm the kit is explicitly listed for your car's damper type, or look at an adjustable-travel kit built for that application. For background on how springs-only kits differ from a full coilover swap, see coilovers vs. lowering springs.

Any Audi lowering spring install should be followed by a four-wheel alignment. Most Audi platforms covered here (A3, A4, A5, Q5) use a MacPherson-strut front end, which gains negative camber as ride height drops - the front wheels tip inward at the top. At the smaller drops in this guide (roughly 0.75-1 inch) that shift is usually within what a standard alignment can correct; at 1.6 inches or more, aftermarket camber bolts or camber plates are commonly needed to get the front end back into a healthy alignment range.

Tire clearance is also worth checking against your specific wheel and tire setup, especially on cars with larger factory wheel packages, since a lower ride height reduces the gap between the tire and the fender liner over bumps. For a breakdown of what a spring swap costs in parts and labor, see lowering springs installation and cost.

Within H&R's own lineup, Sport Springs are the milder, more street-comfort-oriented option, while Super Sport Springs use a stiffer, more progressive rate for a lower stance and firmer handling feel - the gap between the two is clear in the Q5 numbers above, where the Super Sport kit drops the car noticeably more than a typical Sport-tier spring on a comparable platform. Eibach's Pro-Kit sits in a similar comfort-first position in its own lineup, aimed at drivers who want a lower stance without the ride penalty of a track-focused spring or coilover.

If you are weighing a spring kit against a full coilover setup for an Audi, are coilovers worth it covers the tradeoffs in ride quality, adjustability and cost.