H&R Sport Springs - 2012–2015 Mercedes-Benz SL550, w/o ABC (R231)
H&R's Sport Springs lower the R231 SL550 for a tighter stance, built specifically for cars without the factory Active Body Control system.
H&R’s best-selling lowering spring. It closes the fender gap, lowers the center of gravity, and cuts body roll while keeping the car comfortable enough to drive every day. The progressive spring rate is what keeps this from riding like a track spring — it works with your factory dampers, not against them.
Important Compatibility Information
This part is for SL550 models without Active Body Control (ABC). It is not designed for cars equipped with ABC.
Why Choose H&R Sport Springs
H&R crafts every spring in this line from a special (hf) 54SiCr6 spring steel and shot-peens it, a process H&R rates for more than double the service life of an untreated spring. Every spring is 100% tested before it leaves H&R’s ISO9001-certified production facility in Germany.
What’s Included
- H&R Sport Springs (x4)
Reused from the vehicle: the factory shocks — H&R designs this spring to run on your factory dampers, no shock upgrade required.
Product Specifications
H&R rates its Sport Springs line at an average of 1.5 to 1.8 inches of lowering across the whole catalog, though H&R does not publish a figure specific to this part number.
- SKU: H001 28874-1
- MPN: 28874-1
- Fitment: 2012–2015 Mercedes-Benz SL550, without Active Body Control (R231)
Frequently Asked Questions
Will this affect my ride quality?
It firms up, but the progressive spring rate is designed to keep the ride comfortable for daily driving — this is H&R’s daily-driver lowering spring, not a track spring.
Do I need new shocks to run this spring?
No. H&R designs it to work with your factory dampers, and BMP does not require a shock upgrade to install it.
Do I need an alignment after installing this?
Yes. We recommend a four-wheel alignment after installation, our standard advice on any spring or sway bar job in this family.
Not sure this is the right option for your car?
contact your BMP Tuning rep to confirm before you order.