APEXi Suspension & Coilovers

APEXi built its reputation in Japanese motorsport before most coilover brands existed. That pedigree still shows up in how their suspension performs.

The APEXi range at Springrates includes coilovers, suspension components, and supporting performance parts - all engineered to balance street comfort with genuine track capability. The N1 Evolution coilover is the centerpiece: height- and damping-adjustable, developed for drivers who want competition-derived handling without giving up their daily commute. 

APEXi is also one of the few brands where the suspension is part of a broader ecosystem. The N1 Evolution exhaust is a fixture in Japanese tuning culture, the APEXi air filter range (including the Power Intake series) is a go-to for intake upgrades, and pairing them with the coilovers gives a cohesive build that's hard to replicate mixing brands. 

Every APEXi product at Springrates is authentic, sourced through APEXi USA authorised channels, and ships with full manufacturer warranty.

Key Features and Benefits

  • N1 Evolution coilovers - height-adjustable and damping-adjustable, engineered for street, autocross, and track without forcing you to pick just one.
  • Decades of Japanese motorsport development behind the damper tuning. APEXi's competition history isn't marketing - it's where the spring rates and valving data come from.
  • Damping curves set for real roads. Soft enough on the street that passengers won't complain, firm enough on a circuit that you'll feel the difference over stock.
  • Full APEXi product ecosystem. Coilovers, exhaust, intake, engine management - if you're building an APEXi-themed car, everything talks to everything.
  • 100% authentic with manufacturer warranty through Springrates as an authorised dealer.

How to Choose the Right APEXi Setup

The N1 Evolution coilover kit is the right call for most drivers. It covers street comfort, weekend spirited driving, and occasional track days in one package, and the adjustability means you're not locked into a single ride feel.

If you're cross-shopping, N1 Evolution competes directly with the TEIN Flex Z and Cusco street-spec kits. Our honest take: APEXi's damping feel leans slightly firmer out of the box, which suits drivers who prioritize response over plushness. TEIN's Flex Z is softer at baseline. Both are good - it depends on what you want the car to do.

Drivers building a full APEXi setup often pair the coilovers with an APEXi exhaust and APEXi air filter for matched sound, throttle response, and a clean brand-consistent build. Confirm fitment for your chassis before ordering. APEXi's coverage is strong on Japanese sports car platforms (S-chassis, Z-cars, Evos, STIs, Honda) but thinner outside that world. Browse the wider coilovers range if your platform isn't covered, or explore other Japanese performance brands like TEIN for alternatives.

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FAQs

Are APEXi N1 Evolution coilovers good for daily driving?

They're one of the better daily-friendly options in this price bracket. Damping adjustment lets you soften the ride for commuting and firm it up when the road gets interesting. Spring rates are set for street use, which is why the N1 Evolution has stayed popular with daily-driven Japanese sports cars for years. The competition-spec kits are a different story - those are tuned for lap times, not speed bumps.

How much do APEXi coilovers lower a car?

Between 1 and 2.5 inches on most applications, adjustable front and rear. Full-length threaded adjustment means you're changing ride height without eating into shock travel or preloading the spring unevenly. If you need the exact drop range for your specific chassis, our team can pull that before you order.

What other APEXi products does Springrates carry?

Beyond coilovers, APEXi is known for performance exhaust systems (the N1 Evolution muffler is iconic in the JDM scene) and the APEXi air filter range, including the Power Intake series. A lot of customers run all three - coilovers, exhaust, air filter - for a cohesive APEXi build where the parts are designed to work as a system.

Is APEXi USA different from APEXi Japan?

Same products, different distribution. APEXi USA handles warranty, support, and authentic supply for North American customers. The engineering and manufacturing happen in Japan. Buying through an authorised dealer like Springrates means you're getting genuine APEXi USA stock with proper warranty, not grey-market imports.

How do APEXi coilovers compare to TEIN or Cusco?

All three are respected Japanese coilover brands in a similar price tier. APEXi leans toward firmer, more responsive damping out of the box. TEIN's Flex Z is the benchmark for adjustable street comfort. Cusco draws heavily from rally and circuit pedigree. If you're stuck between them, it usually comes down to whether your chassis is supported and which damping character you prefer. We can walk you through the differences for your specific car.

Do APEXi coilovers come with camber plates?

On front MacPherson strut setups, yes - most N1 Evolution kits include pillowball upper mounts that allow camber adjustment. Rear multi-link platforms use the factory mounting points since camber correction happens at the control arms on those designs. Check the kit listing for your car to see what's included.

Are APEXi coilovers worth the money?

For the right build, absolutely. If you're running a Japanese sports car and you value genuine motorsport engineering, adjustable height and damping, and the option to build out a full APEXi ecosystem across suspension, exhaust, and intake - the N1 Evolution is hard to beat at its price point. If your car isn't a Japanese platform, check the fitment first. APEXi's coverage outside that world is limited, and there may be better-supported options for your chassis.

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