Function and Form Coilovers

Function and Form (also known as F2 Suspension) built its name on a simple idea: drivers shouldn't have to pick between performance and looks. The brand's coilovers deliver handling and ride control while keeping the car sitting right at any height. At Springrates we carry the full Type 1 and Type 2 lines along with F2's wider performance suspension range.

The Type 1 is the brand's most accessible coilover. It's a full-bodied, height-adjustable kit with pre-set damping, built for drivers who want a genuine coilover upgrade without mid-tier pricing. The Function and Form Type 2 builds on that platform with 32 levels of damping adjustment, so you can tune ride feel from daily comfort to sharper street response. 

Both kits share the same construction and the same direct, enthusiast-focused customer service that built the F2 reputation in the community. Above both sits the Type 3, a monotube, track-focused coilover for drivers who want serious circuit capability without giving up street manners.

F2 Key Features and Benefits

  • Function and Form Type 1 coilovers - full-bodied, height-adjustable, with pre-set damping tuned for the street. The brand's most accessible entry into a proper coilover kit.
  • Function and Form Type 2 coilovers - add 32 clicks of damping adjustment on the same platform for tunable ride feel.
  • Function and Form Type 3 coilovers - a monotube design with 24-step damping adjustment, a JIS GS3445 carbon-steel body, digressive valving, and Eibach ERS Motorsport springs as standard. The brand's track-oriented tier.
  • Twin-tube damper design (Type 1 and Type 2) with 50mm MacPherson and 43mm double-wishbone piston sizes, and special oil rated from -40C to 200C.
  • Height adjustment from the lower mount, which retains full shock travel even at an aggressive drop.
  • Application-dependent camber plates and pillow-ball mounts, plus an optional Eibach ERS spring upgrade for higher-grip setups.
  • Broad fitment across popular Japanese, European, and domestic platforms, backed by a 2-year warranty.

How to choose between Function and Form Type 1 and Type 2

The decision comes down to whether you want damping adjustability. Type 1 gives you height adjustment with fixed damping that F2 pre-tunes for street use, which is the right call if you want to set ride height once and forget it. The Type 2 adds 32 clicks of damping adjustment, so you can soften things for the daily commute and firm them up for spirited driving or track days.

For most daily-driven cars where stance is the goal, function form Type 2 is overkill and Type 1 is the smarter buy. If you want to tune ride feel across different uses or seasons, the step up to Type 2 pays off. Either way, Form and Function coilovers sit in the entry-to-mid-tier bracket at credible performance for accessible money. Browse the wider coilovers range at Springrates to compare against brands like TEIN, BC Racing, and ISC.

If your priority shifts toward track days, the Type 3 is the one to look at. Its monotube construction dissipates heat better than the twin-tube Type 1 and Type 2 under sustained hard use, the 24-step damping lets you fine-tune for a circuit, and the Eibach ERS Motorsport springs let you change rates as your setup evolves. For a street car, though, the Type 1 or function form Type 2 remains the value pick.

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FAQs

Are Function and Form coilovers good for daily driving?

Yes. Both lines are tuned with daily drivability in mind, balancing better handling against ride comfort rather than chasing stiffness alone. Stepping up from lowering springs or stock suspension, most drivers find the daily compromise on function form coilovers easy to live with, and the Type 2's softest damping settings make that even easier.

What's the difference between Function and Form Type 1 and Type 2 coilovers?

Damping adjustability. Type 1 offers ride-height adjustment with fixed, pre-tuned damping. Type 2 keeps that height adjustment and adds 32 clicks of damping control on the same twin-tube platform. Both share F2's construction and engineering, so the choice is really about whether you want to dial-in ride feel yourself.

What's the difference between the Type 2 and Type 3 coilovers?

The Type 2 is a twin-tube, street-focused coilover with 32-click damping. The Type 3 moves to a monotube design with 24-step damping, a carbon-steel body, and digressive valving that adapts to how fast the suspension is moving, plus Eibach ERS Motorsport springs as standard. In short, Type 2 is the street pick and Type 3 is built for the track while still being daily-capable.

How much do Function and Form coilovers lower a car?

Drop range depends on the chassis, but most applications give roughly 1 to 3 inches of adjustable lowering front and rear. Because height is set from the lower mount, you keep full shock travel whether you run a mild drop or go aggressive. We can confirm the exact figures for your specific vehicle before you order.

How do Function and Form coilovers compare to other entry-tier brands?

F2 sits alongside BC Racing, TEIN Street Basis Z, and entry-level ISC in the accessible bracket. Its edge tends to be customer service and community presence, while the engineering trade-offs are competitive with the rest of the segment. The right pick often comes down to fitment for your chassis and personal preference.

Are Function and Form coilovers serviceable or rebuildable?

F2's kits use twin-tube dampers chosen for durability and a smoother street ride, and they're backed by a 2-year warranty. Twin-tube designs generally aren't field-rebuildable the way some monotube race dampers are, so if long-term rebuild service is a priority for your build, check with us on the specific kit before buying.

Do Function and Form coilovers come with camber plates?

Adjustable camber plates are included on most MacPherson-strut front applications, along with adjustable pillow-ball mounts where the platform supports them. Rear setups usually use OEM-style mounting, since rear camber on multi-link chassis is adjusted at the arms. Check the listing for your car to confirm what's in the box.

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