Dial in your own ride control with the KYB AGX Adjustable Suspension Strut 741036, a rear-position, damping-rate-adjustable strut that drops in as a direct-fit replacement for the 1999-2005 Mazda Miata. The AGX lets you design your own performance without special tools — externally adjustable without lifting the vehicle or removing the tires — so you can retune corner damping as often as you want.
- Manually adjustable damping: One simple adjustment increases both rebound and compression damping; enthusiasts can add up to 125% more damping force on the Mazda Miata. Depending on the application, adjustment is via an eight-position knob or a four-position screwdriver slot — both offer the same capability.
- Velocity-sensitive valving: Precision multi-stage hydraulic valves react to driving conditions on the street or track to help maintain tire contact and vehicle control.
- Built to last: Uses a seamless working cylinder matched with a Teflon-coated piston band for a positive seal and longer life.
- ESC/ABS-friendly: Engineered to help vehicles with electronic safety systems (ESC, ABS, etc.).
To reduce the chance of noise and vibration, KYB recommends installing new strut mounts (part number SM5139), and you can protect your new struts from dirt, debris and salt with a KYB Strut Boot (part number SB108).
Frequently Asked Questions
What vehicle does this strut fit?
It is a direct-fit replacement for the 1999-2005 Mazda Miata. See the Buyer's Guide tab to confirm fitment for your vehicle.
Is this a front or rear strut?
This is a rear-position suspension strut. It is sold individually; for even handling, replace struts as a matched pair.
How do I adjust the damping?
Depending on the application, you adjust via an eight-position knob or a four-position screwdriver slot. One adjustment changes both rebound and compression damping, and it can be done without lifting the vehicle.
How much can the damping be increased?
On the Mazda Miata, the AGX can be adjusted to add up to 125% more damping force, letting enthusiasts tune corner damping for street or track use.
Are strut mounts or boots included?
No. KYB recommends installing new strut mounts (part number SM5139) to reduce noise and vibration, and offers a KYB Strut Boot (part number SB108) to protect against dirt, debris and salt.
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