AST Suspension 5100 Competition 1-way Adjustable Coilovers - BMW M4 F82 (5-Bolt)

The AST 5100 Comp is the track-day version of AST's 1-way coilover. For the 5-bolt F82 M4 it comes with camber-adjustable top mounts at both ends and linear race springs, so you can set the car up properly for circuit work and still drive it there.

What you get

• AST 5100 Comp dampers for the F82 M4 (5-bolt front top mounts)
• Front and rear camber-adjustable top mounts with spherical bearings, for sharper steering and the camber you need on track
• Linear race springs at AST's recommended rates
• 12-position damping adjustment
• Monotube, gas-pressurised dampers with adjustable ride height

Comp or Street?

If the car is mainly a road car, the AST 5100 Street is the better choice: it runs the factory rubber top mounts and is quieter and softer day to day. Choose the Comp if you do regular track days and want camber adjustment and a firmer, more precise feel. Spherical top mounts do transmit more noise into the cabin.

Fitment

For 5-bolt F82 M4s, built from early 2015. Earlier 3-bolt cars need the 3-bolt version. For the F80 M3, see the 5-bolt F80 kit.

Other track options

The KW V3 Clubsport and KW V4 Clubsport are the KW alternatives for the F80/F82.

Fitting and setup at String Theory Garage

For a track car we'll set the geometry for how and where you drive, not just to the factory figures. Choose “Collection/Fitting from String Theory” at checkout and we'll be in touch to book your slot. Every fit includes ride-height setting, corner weighting and alignment.

Questions we get asked

Can I use it on the road?
Yes, but it's firmer and noisier than the Street version because of the race springs and spherical mounts.

Photos may show a similar kit rather than the exact one for your car.