Rev9 Coilovers: Hyper-Street Series Review

Rev9Power sells three street coilover lines under the Hyper-Street name, plus separate kits for lowered trucks and SUVs. The table below uses specs published on rev9power.com's own category pages.

All three lines ship as complete bolt-in kits (springs, shocks, and mounts together), not bare coilover sleeve kits. See the full coilover brand directory for how Rev9 stacks up against other budget and mid-tier lines.

Hyper-Street ONE targets owners replacing stock struts and springs with a one-time height setting on a tight budget. Hyper-Street II adds 32-way damping so the same car can be tuned softer for highway miles or stiffer for an autocross weekend, which is why most of the "hyper street 2" and "rev9 hyper street ii coilovers" search volume points at this tier; for example, the current Honda Civic Si (FE1) kit uses a 7 kg/mm front and 6 kg/mm rear spring rate, on the softer end of Rev9's Hyper-Street II range. Hyper-Street 3 swaps in an inverted shock body, which Rev9 markets as a ride-quality upgrade for cars that are already lowered rather than a track-focused line.

None of the three lines compete with remote-reservoir or double-adjustable coilovers built for wheel-to-wheel racing; all three stay in daily-driver and weekend-track territory.

Rev9 sits in the same price bracket as other high-volume, application-specific coilover brands. BC Racing BR-series kits cover a similar budget-to-mid-range spot but have built dampers in-house longer; owners generally report BC's valving as more consistent out of the box. Megan Racing Street series is the closest direct match to Hyper-Street II on price and spec sheet, with both brands using 32-way mono-tube dampers and full-length threaded bodies. Godspeed MAXX and MonoSS lines undercut Rev9's entry price and are the more common cross-shop against Hyper-Street ONE.

None of these brands publish independent lab testing, so forum and owner-installation reports are the main source of real-world feedback across this whole price segment, not just Rev9.

Hyper-Street kits ship pre-assembled as a strut-and-spring unit, so installation follows the same steps as any bolt-in coilover: unbolt the factory strut, transfer or swap the top mount, and torque the new unit back in, reusing stock hardware where Rev9 reuses the factory mount. See the general coilover installation and cost guide for tool lists and shop-labor ranges.

Height is set independently from damping: loosen the lower locking collar, thread the perch up or down, then relock it, covered step by step in how to adjust coilovers. The damping dial on Hyper-Street II and 3 is a separate adjuster on the shock body; turning it does not change ride height. A coilover spanner wrench makes the collar adjustment much easier than pliers or a pry bar.

Rev9 states on its own product pages that on vehicles with factory adaptive dampers, fitting a Hyper-Street kit triggers a dashboard warning light for the adaptive-damping system; the car still drives normally, but the warning will not clear.