or as low as $32.92/mo with Affirm
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All Eibach Pro-Kits go through the same rigorous construction and testing process, in the hands of our suspension engineers and performance driving professionals. The Pro-Kit strikes the perfect balance between vehicle performance and rider safety. Our special spring design ensures that your Mustang delivers the best driving experience possible.
Also known as variable-rate springs, progressive springs are the type you’d want in your Mustang to make even the uneven surfaces and public roads feel smooth and comfortable. Engineered with a low starting spring rate, progressive springs increase their spring rate as they compress, resulting in a heavy-duty vehicle that delivers easy rides while handling rough roads with ease.
Installing the Pro-Kit Lowering Springs may take between 3-5 hours. While it is a fairly straightforward process, it may require a spring compressor. Thus, American Muscle recommends hiring a professional for this installation, as well as an alignment afterward.
The Pro-Kit Lowering Springs are specifically designed for use on the 2015-2020 Shelby GT350 and GT350R Mustang models, as well as the 2018-2020 GT and Bullitt Mustang models equipped with the MagneRide Suspension.
Application Note. These Springs are not intended for use on non-MagneRide equipped vehicles.
You'll get an instant confirmation email with your part details and invoice. We source from a network of authorized suppliers across the country, so lead times vary by brand and part type — we'll send a tracking number the moment your parts move.
Made-to-order builds — carbon fiber bodywork, fabricated systems, custom finish work — run longer than off-the-shelf items because they're built per order. You'll get progress updates throughout the build.
Need a specific timeline on a part before you buy? Call 805-267-9762 or hit the chat — we'll check vendor stock direct and give you a straight answer.
Absolutely! Once your order ships, you'll get an email with a tracking link so you can follow its journey from our shop to your doorstep.
If your order ships via freight, you'll get a separate email with a direct link to the carrier's tracking page — easy and stress-free.
Things happen on the road — even to boxes. If your order arrives damaged, snap a few clear photos of the box and product and send them our way right away.
If your shipment is lost, just email or call us — we'll help track it down and guide you through the next steps to make it right.
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