RIACTION PERFORMANCE SHOCKS
Riaction Performance Shocks builds adjustable coilover suspension systems engineered for street driving, canyon carving, and track use. Featuring customizable damping and full ride height control, our coilovers are trusted worldwide for performance, reliability, and precise vehicle handling.

Riaction Coilovers
Riaction GT-1 Linear Coilover Kit is the most popular coilover system that we offer. These adjustable coilovers offers a height adjustable body with 32 Levels of adjustable rebound for quick changes in ride quality and driving characteristics.
The linear valved kit is great for street driving, canyon carving and the occasional track-day.
The Riaction GT-2 Linear 2-Way Coilover Kit is valved similar to the standard GT-1 kit with the same height adjustable body and rebound control, with the addition of compression adjustability on the external reservoir. The external reservoir also increases fluid capacity which helps lower fluid temperatures.
The linear 2-Way coilover kit is perfect for those that take track driving more seriously and want more control out of the coilover system. Although the 2-Way kit is also great for street driving as well.
The Riaction GP-1 Digressive Coilover kit has much more low speed control in comparison to a Linear valve. The resistance rate on the digressive valve increases as shaft speeds increase, but only to a pre-determined level. The digressive valving then has resistance that tapers off and as the shaft speed continues to increase, the resistance remains constant. This setup will do a better job of managing unwanted body motions while also still providing a comfortable ride.
The digressive coilover system is great for street use, canyon carving, and track days.
The Riaction GP-2 Digressive 2-Way Coilover Kit is valved similar to the GP-1 digressive kit, with the same height adjustable body and adjustable rebound control, with the addition of compression adjustability on the external reservoir. Much like the Linear 2-way kit, the external reservoir increases fluid capacity and helps lower fluid temperatures.
The digressive 2-way coilover will give much more confidence in driver feedback as well as a very stable vehicle from a more controlled weight distributing environment. Perfect for those looking for ultimate control and adjustability on the street, canyons, or track.




Let customers speak for us
from 27 reviewsHaven’t gotten a chance to install yet. The overall product is amazing. The quality is top notch. I enjoyed calling reaction when I had questions about spring rates and what kind of dampening I should start with. The team over there at riaction is amazing. Any question you have about your coil over, they will be able to answer! Can’t wait to get these babies on

The Riaction RZ34 coilovers fit great and made the ride height just how I wanted it. The ability to chose firm or soft ride quality was a big plus.

Great product, great customer service. Happy to work with them in the future

yes the PORSCHE 944 (85.5-86 NA) EARLY OFFSET fit the 87-88 924s with no problems. install and adjustment was straight forward, great design.

Great Quality socks for my recently purchased Riaction coilovers.

Ive had these coilovers for 6 years solid, reason for replacement hit a major pothole. Great product.Order was easy and delivered earlier than promised.

Perfect fitment, High quality, best riding coilovers I have ever driven on. Highly recommend

Installed these for about a year now. Its been nothing but amazing and great.

Super fast shipping!

Great product. Prompt response by the Riaction team to any questions I had before purchasing. Quick shipping time. Quality feel and look to the coil-overs once I got them in hand. 1 week after install; factory 12k/8k spring rate and no complaints. Very excited to experience how the product performs down the road. So far so good.

So much better then the stock mount, In have heard of some of the factory mounts breaking. Not with these billet aluminum ones.

Love the coilovers, ride quality is a amazing for coilovers. A little stiffer then stock, but a great ride even over out not so great country roads. Handles the bumps like a champ. Definitely go with the GP-1's make a difference with the ride quality. Handles so much better then stock, even with ECS equipped. Was an easy install, and was not difficult to adjust even for a first timer like myself. Love how I can dial in my ride hight, and for every day driving have my dampeners sent to 2, can't wait to hit the track and see how handles (4000lb car). Reaction did an awesome job getting my product to me, in one week ordered, shipped and delivered. Was surprised on how fast they showed up. Great build quality, looking for many years of use.

Best customer service in a time where customer service means everything! Seriously, the best experience I have ever had. Im a loyal customer.

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