KW Street Comfort Coilovers Suspension Kit for BMW 3 Series F30 F31 Saloon & Touring (RWD/2WD) 2012+ – Height & Rebound Adjustable Shocks/Struts – Comfort Lowering 30-55mm Front, 20-45mm Rear – Inox-Line Stainless – Non-EDC/No Adaptive Damping

Street Comfort suspension kit for BMW 3 Series F30 and F31 RWD without electronic damping

Give your BMW 3 Series a premium ride and sharper control with KW Street Comfort. This height adjustable spring and damper package is tuned for daily use on UK roads, delivering supple compliance, confident body control and a tasteful drop for F30 saloon and F31 estate models that are rear wheel drive and not equipped with factory adaptive damping.

Who is it for

Drivers who want a comfortable lowering kit that works brilliantly on British tarmac, motorway miles and spirited B road runs. Ideal if you want an OEM plus stance, less pitch and roll, improved stability and a refined feel without a crashy ride.

Key details

• Platform: BMW F30 Saloon and F31 Touring, rear wheel drive, no electronic damper control
• Model years: 08 2012 onwards
• Ride height range: front 30 to 55 mm, rear 20 to 45 mm
• Front axle permissible load: 914 to 1020 kg
• Rear axle permissible load: up to 1265 kg
• Rebound adjustment: 16 clicks for precise comfort and control tuning
• Inox Line stainless construction for corrosion resistance and long service life

Why enthusiasts choose Street Comfort

• Real world comfort with tighter handling. The spring and damper rates are engineered to smooth rough surfaces while keeping the chassis composed in corners and at speed.
• Fine tune your ride. The 16 stage rebound adjuster lets you tailor the response to wheel and tyre setups, road conditions and personal preference.
• Clean, usable drop. Achieve a tidy stance and correct rake without going impractically low, with a tested adjustment window designed to avoid rubbing when set up correctly.
• Weatherproof hardware. Inox stainless strut bodies and a robust trapezoidal thread with composite spring seats make height changes straightforward even after winters on salted roads.
• Proven development. Validated on the road and on KW’s 7 post rig for comfort oriented performance you can feel every day.

How it transforms your F30 F31

Expect less float and more confidence on uneven A roads, a calmer motorway ride, crisper turn in and better traction when accelerating. It is a genuine upgrade for petrol and diesel models within the stated axle loads, giving your 3 Series the poised, premium feel it deserves.

Our experience and customer feedback

We have fitted and run this setup on customer cars and our own builds. Owners consistently report a smoother ride, improved stability and the ability to dial in the perfect everyday setup with the rebound adjuster. It is a favourite for daily driven F30 and F31 cars that need comfort and control in equal measure.

Technical highlights

• Inox Line stainless steel damper housings for durability
• Independently adjustable rebound with 16 clearly defined clicks
• Vehicle specific damper valving and spring rates focused on comfort with control
• Durable height adjustment thread and composite perches for long term ease of use
• KW tested lowering range for reliable clearance when set up properly

Compatibility notes

• Rear wheel drive only. Not suitable for xDrive.
• For cars without electronic damping control from factory.
• Please check axle loads on your VIN label to confirm suitability.

Search friendly terms to help you find this kit

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Fitting and setup

Professional installation and alignment strongly recommended. MJ Modifications offers expert fitting and setup in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Summary

If you want a tasteful drop, adjustable comfort and a refined drive, this Street Comfort package is the ideal suspension upgrade for BMW F30 and F31 rear wheel drive models without adaptive damping. Stainless hardware, adjustable rebound and KW’s development pedigree make it a durable, confidence inspiring choice for UK roads.