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Best E46 Suspension Upgrades for UK Roads: Coilovers vs. Springs? (Brands & Reviews)

Posted: Fri May 30, 2025 1:47 pm
by spinecki
Alright E46 modders,

Many of us feel the stock E46 suspension, especially on non-Sport models or aging components, could do with an upgrade for better handling and stance. But what's the best suspension setup for UK roads? Potholes, B-roads, and daily driving comfort are all factors!

This thread is to discuss E46 suspension upgrades – from lowering springs to full coilover kits.

Key Discussion Points for UK Owners:
  • Lowering Springs Only: Which brands offer a good balance of drop and comfort for UK roads (e.g., Eibach Pro-Kit, H&R)? What shocks are best paired with them (e.g., Bilstein B4/B6, Koni STR.T/Sport)? Real-world drop vs. advertised?
  • Coilover Kits:
    • Budget Coilovers (e.g., JOM, FK, AP): Are they a false economy for UK conditions? Experiences with longevity and ride quality?
    • Mid-Range Coilovers (e.g., Bilstein B14, HSD Monopro, BC Racing, KW V1/V2): Worth the extra investment? How do they handle UK road imperfections? Adjustability benefits?
    • Premium Coilovers (e.g., KW V3, Ohlins): Overkill for a road car, or sublime?
  • Refresh vs. Upgrade: Is it sometimes better to just refresh old bushings (Powerflex, Meyle HD?), top mounts, and standard Sport shocks for UK daily driving?
  • Impact on Ride Quality & Handling: Be honest about how your setup transformed (or ruined!) the ride.
  • Installation & Setup: DIY difficulty? Any UK specialists recommended for setup and alignment?
  • Insurance Implications in the UK: Did you declare your suspension mods? Any issues?
Please share your E46 model (Saloon, Coupe, Touring, Compact, Convertible), your chosen suspension setup, photos of the stance, and your honest review of how it performs on UK roads. Let's see those setups!