ST Lowering Spring Kit - 50/30 - 3 -series; E90, E91, E92, E93 (390L, 392C, 3C, 3K, 3L), Saloon 01/05-01/12 318i, 320i, 320si

Transform your BMW 3 Series handling and stance with ST sport coils

Give your E9x a purposeful drop and sharper road manners with this ST spring set. Expect a lower centre of gravity, crisper turn in and a more planted feel without ruining day to day comfort. Front ride height is reduced by approximately 50 mm with around 30 mm at the rear for a balanced, aggressive look that suits UK roads.

We have fitted this kit on customer cars and the feedback has been consistently excellent. Confident cornering, reduced body movement and a tidy, even stance that complements OEM dampers make this a brilliant upgrade for fast road use.

Key benefits

• Noticeable ride height reduction for a clean, even stance
• Improved steering response and reduced body roll
• Engineered to work with factory shocks, including vehicles with electronic dampers
• Chrome silicon spring steel with a durable epoxy finish for long term corrosion resistance
• Heat treated multiple times with model specific rates for dependable performance
• Built to original equipment standards for fit and longevity

Compatibility

For BMW 3 Series petrol models from 2005 to 2012 across saloon, touring, coupé and cabriolet body styles. Suitable where engine output is within 95 to 127 kW.

• Models: 318i, 320i, 320si
• Chassis family: E9x platform
• Body styles covered: saloon, touring, coupe, convertible
• BMW internal codes referenced: 390L, 392C, 3C, 3K, 3L

Lowering and load info

• Approximate drop front and rear: 50 mm front, 30 mm rear
• Maximum permitted front axle load: 935 kg
• Maximum permitted rear axle load: 1085 kg

Why choose this ST suspension upgrade

These coils are designed specifically for your BMW, delivering a tasteful drop and real world handling gains. The finish is tough, the materials are premium and the ride quality remains composed. Customers love the confidence it brings on B roads and the way it tightens up the chassis without harshness.

Professional installation available

Want it fitted right first time? Book installation with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

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